EP0484771A1 - Container for the transport of chemicals - Google Patents

Container for the transport of chemicals Download PDF

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Publication number
EP0484771A1
EP0484771A1 EP91118276A EP91118276A EP0484771A1 EP 0484771 A1 EP0484771 A1 EP 0484771A1 EP 91118276 A EP91118276 A EP 91118276A EP 91118276 A EP91118276 A EP 91118276A EP 0484771 A1 EP0484771 A1 EP 0484771A1
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Prior art keywords
chemicals
container
transport container
polyethylene
purity
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EP91118276A
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German (de)
French (fr)
Inventor
Hans-Ulrich Dipl.-Ing. Hahn
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Honeywell Riedel de Haen AG
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Riedel de Haen AG
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Publication of EP0484771A1 publication Critical patent/EP0484771A1/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D85/00Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/70Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for
    • B65D85/84Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for for corrosive chemicals
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D11/00Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material
    • B65D11/02Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material of curved cross-section
    • B65D11/06Drums or barrels

Definitions

  • the subject matter of the present invention relates to a chemical transport container for liquid chemicals, in particular liquid high-purity chemicals for the electronics industry.
  • high-purity chemicals are understood to be chemicals which contain a maximum of 50 particles / ml with a size of> 0.2 ⁇ m and a maximum of 10 particles / ml with a size of> 0.5 ⁇ m.
  • metals such as aluminum, cobalt, chromium, copper, iron, magnesium, manganese, nickel, lead, etc. are contained in a maximum amount of 1 ppb each.
  • the maximum chloride content is 0.1 ppm, nitrate 0.2 ppm, phosphate 0.02 ppm and sulfate 0.1 ppm.
  • a large chemical container that meets all of the above requirements is not known.
  • the present invention provides a large chemical transport container that meets these requirements.
  • the transport container for liquid chemicals in particular liquid high-purity chemicals for the electronics industry of the present invention, is characterized in that it consists of an inner shell of high-purity, non-auxiliary polyethylene and an outer shell of commercially available, auxiliary polyethylene.
  • high-purity polyethylene containing no auxiliaries is understood to mean polyethylene which has been produced without any use of the normally customary auxiliaries.
  • Normally customary auxiliaries are stabilizers, in particular antioxidant ions, which are known to the person skilled in the art (see, for example, plastics 78 (2), 142 (1988)).
  • polyethylene containing auxiliary means that it is produced using the said auxiliary.
  • the space between the inner and outer shell is advantageously filled with a gas that can be metered through a valve in the outer shell.
  • gases examples are nitrogen, noble gases such as helium, neon or argon, or air.
  • the inner shell is expediently produced in such a way that it forms the smoothest possible, seamless and seamless inner surface.
  • the upper and lower part can be formed, for example, from deep-drawn bobbin-case bottoms, which in turn are made from plates, which are connected seamlessly to a cylindrical middle piece. This inner shell is completely and seamlessly encased with the outer shell.
  • the opening of the container according to the invention is closed with a closure, e.g. a closure plate, but preferably closed with a welded block flange.
  • a closure e.g. a closure plate
  • the flange like the outer shell, advantageously consists of auxiliary material-containing polyethylene and is welded on the inside, which is in contact with chemicals, to a plate made of high-purity, non-auxiliary material-containing polyethylene.
  • the block flange connects the inner and the outer shell by welding.
  • the flange has several connections for the supply and discharge lines, riser or immersion pipes and the like, which allow the container to be filled and emptied.
  • the connections for the inlets and outlets of the liquid chemical, the connections for the inlets and outlets of the inert and / or compressed gases and the like can be designed as connecting pieces, which in turn have suitable closures, such as screw closures, quick couplings, taps and / or valves can be closed are.
  • Connections for sensors and the sensors for monitoring the filling or emptying process can also be arranged in the actual container closure.
  • connections arranged in the closure serve both to fill the container and to remove the chemicals from the container.
  • the necessary feed and discharge lines for the chemical as well as any feed and discharge lines for the inert or compressed gases mentioned or the sensors or the like required for the filling or removal process are transferred to the in both when filling and when removing the chemical existing connections connected to the lock.
  • the connections e.g. In their design, e.g. in their diameter, they should all be the same. However, one or more connections or connecting pieces can deviate from this same configuration. All connection pieces can also be designed differently.
  • the inner container can be emptied by overpressure or pumping.
  • Several connections are connected to several ascending pipes made of high-purity, no auxiliary materials, reaching to the bottom of the inner shell.
  • the ventilation is expediently carried out via a membrane valve or needle valve.
  • the ventilation via the valve prevents the uncontrolled escape of chemicals through one of the riser pipe connections if a chemical-specific container overpressure has built up.
  • particle-free, filtered gas can be supplied for pressure equalization in the case of negative pressure.
  • this is in an outer container made of polyethylene tube adjusted and fixed by struts.
  • the tube is closed by a flat underbody and preferably mounted on a plastic pallet.
  • the upper side is closed by a convex upper floor with openings for the flange by welding, an elevated collar having the function of a protective collar for the fittings mounted on the container flange. It is advisable to install an outward drainage, eg a pipe, at the lowest point of the convex top floor.
  • the upper edge of the outer container can finally be closed with an additional plate.
  • the space between the outer and the inner container can be empty or completely or partially filled with a material, for example a heat-insulating material.
  • Foam plastics can have open or closed cells and are known from thermoplastic, elastomeric or thermoset polymers.
  • the foam plastic can consist of polystyrene, polyvinyl chloride, polyethylene, urea-formaldehyde resin, epoxy resin, polyimide, but in particular of polyurethane, for example based on methyl bisphenyl isocyanate.
  • the space between the outer and inner container is preferably foamed with a so-called polyurethane integral foam.
  • the chemical transport container according to the invention enables the safe transport of highly pure liquid, possibly also aggressive chemicals, even with contents of 500 l and more, without risk of contamination and risk of breakage. There will also be major temperature fluctuations avoided during transport and storage.
  • the inner shell is denoted by 1 and the outer shell by 2.
  • a gas can be metered into the space 3 between the inner and outer shell via the valve 4.
  • the block flange 5 connects the inner and outer shell by welding and has a plurality of connections (not shown in the figure) for the supply and discharge lines, riser or immersion pipes and the like.
  • the inner container is set in an outer container made of polyethylene tube 6 and fixed by struts 7.
  • the tube is closed by a flat underbody 8 and mounted on a pallet 9.
  • the top is closed with a convex top 10 with an opening for the flange 5.
  • a drainage 11 leads from the lowest point of the convex top floor 10 to the outside.
  • the outer container 6 is closed at the top by an additional plate 12.
  • the space 13 between the outer and the inner container is foamed in the lower part with a foam 14.

Abstract

The container for the transport of liquid chemicals, in particular liquid, high-purity chemicals for the electronics industry, comprises an inner shell of high-purity polyethylene, containing no auxiliaries, and an outer shell of polyethylene containing auxiliaries. <IMAGE>

Description

Der Gegenstand der vorliegende Erfindung betrifft einen Chemikalientransportbehälter für flüssige Chemikalien, insbesondere flüssige Hochreinchemikalien für die Elektronikindustrie.The subject matter of the present invention relates to a chemical transport container for liquid chemicals, in particular liquid high-purity chemicals for the electronics industry.

In den letzten Jahren sind die Anforderungen an die Reinheit von flüssigen Spezialchemikalien, z.B. von Prozeßchemikalien für die Elektronikindustrie, stark gestiegen. Dabei wird, z.B. bedingt durch die immer kleiner werdenden Abmessungen der von der Elektronikindustrie unter Verwendung von Prozeßchemikalien hergestellten Mikrochips, zunehmend die Forderung nach Partikelfreiheit der flüssigen Hochreinchemikalien erhoben.In recent years, the requirements for the purity of liquid specialty chemicals, e.g. of process chemicals for the electronics industry. Here, e.g. Due to the ever smaller dimensions of the microchips produced by the electronics industry using process chemicals, the demand for particle freedom of the liquid high-purity chemicals has increased.

Im Rahmen dieser Erfindung werden unter Hochreinchemikalien Chemikalien verstanden, die maximal 50 Partikel/ml mit einer Größe von >0,2 µ und maximal 10 Partikel/ml mit einer Größe von >0,5 µ enthalten. Weiterhin sind Metalle, wie beispielsweise Aluminium, Kobalt, Chrom, Kupfer, Eisen, Magnesium, Mangan, Nickel, Blei usw. maximal in einer Menge von jeweils 1 ppb enthalten. Der Gehalt an Chlorid beträgt maximal 0,1 ppm, an Nitrat 0,2 ppm, an Phosphat 0,02 ppm und an Sulfat 0,1 ppm.In the context of this invention, high-purity chemicals are understood to be chemicals which contain a maximum of 50 particles / ml with a size of> 0.2 μm and a maximum of 10 particles / ml with a size of> 0.5 μm. Furthermore, metals such as aluminum, cobalt, chromium, copper, iron, magnesium, manganese, nickel, lead, etc. are contained in a maximum amount of 1 ppb each. The maximum chloride content is 0.1 ppm, nitrate 0.2 ppm, phosphate 0.02 ppm and sulfate 0.1 ppm.

Die Herstellung flüssiger, partikelfreier Hochreinchemikalien wird von den Feinchemikalienherstellern beherrscht. Zur Lagerung und zum Transport sind allerdings bekannte Behälter aus handelsüblichen Werkstoffen nicht geeignet.The production of liquid, particle-free high-purity chemicals is dominated by the fine chemical manufacturers. However, known containers made of commercially available materials are not suitable for storage and transport.

Bei der Lieferung der flüssigen Hochreinchemikalien an die Elektronikindustrie kommen aus wirtschaftlichen Gründen nur Großgebinde in Betracht. Diese sollten so beschaffen sein, daß sie eine Kontamination des Behälterinhaltes ausschließen, auch bei rauher Behandlung durch Gabelstapler und dergleichen bruchsicher sowie einfach und preiswert herstellbar sind.For economic reasons, only large containers are considered for the delivery of the high-purity liquid chemicals to the electronics industry. These should be such that they contaminate the contents of the container rule out, even with rough handling by forklift trucks and the like breakproof and easy and inexpensive to manufacture.

Sie sollen von Gabelstaplern und anderen üblichen Transportvorrichtungen ohne Transportrisiko bewegt werden können, d.h. auch bei einem Fall den Behälter sicher vor Bruch schützen.They should be able to be moved by forklifts and other conventional transport devices without any transport risk, i.e. Protect the container from breakage even in the event of a fall.

Ein Großchemikalienbehälter, der alle vorgenannten Anforderungen erfüllt, ist nicht bekannt. Durch die vorliegende Erfindung wird ein Großchemikalientransportbehälter zur Verfügung gestellt, der diese Anforderungen erfüllt.A large chemical container that meets all of the above requirements is not known. The present invention provides a large chemical transport container that meets these requirements.

Der Transportbehälter für flüssige Chemikalien, insbesondere flüssige Hochreinchemikalien für die Elektronikindustrie der vorliegenden Erfindung, ist dadurch gekennzeichnet, daß er aus einer inneren Schale aus hochreinem, keine Hilfsmittel enthaltendem Polyethylen und einer äußeren Schale aus handelsüblichem, Hilfsmittel enthaltendem Polyethylen besteht.The transport container for liquid chemicals, in particular liquid high-purity chemicals for the electronics industry of the present invention, is characterized in that it consists of an inner shell of high-purity, non-auxiliary polyethylene and an outer shell of commercially available, auxiliary polyethylene.

Unter hochreinem, keine Hilfsmittel enthaltendem Polyethylen wird im Rahmen dieser Erfindung Polyethylen verstanden, das ohne jede Verwendung der normalerweise üblichen Hilfsmittel hergestellt wurde. Normalerweise übliche Hilfsmittel sind Stabilisatoren, insbesondere Antioxidantion, die dem Fachmann bekannt sind (siehe z.B. Kunststoffe 78(2), 142 (1988)). Im Gegensatz dazu bedeutet Hilfsmittel enthaltendes Polyethylen, daß es unter Verwendung der genannten Hilfsmittel hergestellt ist.In the context of this invention, high-purity polyethylene containing no auxiliaries is understood to mean polyethylene which has been produced without any use of the normally customary auxiliaries. Normally customary auxiliaries are stabilizers, in particular antioxidant ions, which are known to the person skilled in the art (see, for example, plastics 78 (2), 142 (1988)). In contrast, polyethylene containing auxiliary means that it is produced using the said auxiliary.

Der Raum zwischen innerer und äußerer Schale ist vorteilhafterweise mit einem Gas gefüllt, das über ein Ventil in der äußeren Schale dosiert werden kann. Geeignete Gase sind beispielsweise Stickstoff, Edelgase wie beispielsweise Helium, Neon oder Argon, oder auch Luft.The space between the inner and outer shell is advantageously filled with a gas that can be metered through a valve in the outer shell. Suitable gases Examples are nitrogen, noble gases such as helium, neon or argon, or air.

Zweckmäßigerweise wird die Innenschale so hergestellt, daß sie eine möglichst glatte, fugen- und übergangslose Innenfläche bildet. Der obere und untere Teil können beispielsweise aus tiefgezogenen Klöpperböden, die ihrerseits aus Platten hergestellt sind, gebildet sein, die mit einem zylindrischen Mittelstück fugenlos verbunden sind. Diese innere Schale ist mit der äußeren Schale vollständig und nahtlos umhüllt.The inner shell is expediently produced in such a way that it forms the smoothest possible, seamless and seamless inner surface. The upper and lower part can be formed, for example, from deep-drawn bobbin-case bottoms, which in turn are made from plates, which are connected seamlessly to a cylindrical middle piece. This inner shell is completely and seamlessly encased with the outer shell.

Auf diese Weise wird erreicht, daß ein Austreten von Flüssigkeit an die Umwelt verhindert wird, falls die mechanisch instabile innere Schale beispielsweise aufgrund extremer Transportbelastungen zerstört wird.In this way it is achieved that liquid is prevented from escaping into the environment if the mechanically unstable inner shell is destroyed, for example due to extreme transport loads.

Die Öffnung des erfindungsgemäßen Behälters ist mit einem Verschluß, z.B. einer Verschlußplatte, bevorzugt aber mit einem eingeschweißten Blockflansch, verschlossen. Vorteilhafterweise besteht der Flansch wie die äußere Schale aus Hilfsmittel enthaltendem Polyethylen und ist an der chemikalienberührten Innenseite mit einer Platte aus hochreinem, keine Hilfsmittel enthaltendem Polyethylen verschweißt. Der Blockflansch verbindet die innere und die äußere Schale durch Verschweißung.The opening of the container according to the invention is closed with a closure, e.g. a closure plate, but preferably closed with a welded block flange. The flange, like the outer shell, advantageously consists of auxiliary material-containing polyethylene and is welded on the inside, which is in contact with chemicals, to a plate made of high-purity, non-auxiliary material-containing polyethylene. The block flange connects the inner and the outer shell by welding.

Der Flansch besitzt mehrere Anschlüsse für die Zu- und Ableitungen, Steig- oder Tauchrohre und dergleichen, die eine Befüllung und Entleerung des Behälters gestatten. Die Anschlüsse für die Zu- und Ableitungen der flüssigen Chemikalie, die Anschlüsse für die Zu- und Ableitungen der Inert- und/oder Druckgase und dgl. können als Anschlußstutzen ausgeführt werden, die ihrerseits mit geeigneten Verschlüssen, wie z.B. Schraubverschlüssen, Schnellkupplungen, Hähnen und/oder Ventilen verschließbar sind. In dem eigentlichen Behälterverschluß können auch Anschlüsse für Sensoren und die Sensoren für die Überwachung des Befüllungs- oder Entleerungsvorgangs angeordnet sein.The flange has several connections for the supply and discharge lines, riser or immersion pipes and the like, which allow the container to be filled and emptied. The connections for the inlets and outlets of the liquid chemical, the connections for the inlets and outlets of the inert and / or compressed gases and the like can be designed as connecting pieces, which in turn have suitable closures, such as screw closures, quick couplings, taps and / or valves can be closed are. Connections for sensors and the sensors for monitoring the filling or emptying process can also be arranged in the actual container closure.

Die in dem Verschluß angeordneten Anschlüsse dienen sowohl der Befüllung des Behälters als auch zur Entnahme der Chemikalien aus dem Behälter. Die hierfür erforderlichen Zu- und Ableitungen für die Chemikalie sowie eventuelle Zu- und Ableitungen für die genannten Inert- oder Druckgase oder die für den Befüllungs- oder Entnahmevorgang erforderlichen Sensoren oder dergleichen werden sowohl bei der Abfüllung als auch bei der Entnahme der Chemikalie an die in dem Verschluß vorhandenen Anschlüsse angeschlossen. Die Anschlüsse, z.B. Anschlußstutzen können in ihrer Ausgestaltung, z.B. in ihrem Durchmesser, untereinander alle gleich ausgestaltet sein. Von dieser gleichen Ausgestaltung können jedoch ein oder mehrere Anschlüsse oder Anschlußstutzen abweichen. Es können auch alle Anschlußstutzen unterschiedlich ausgestaltet sein.The connections arranged in the closure serve both to fill the container and to remove the chemicals from the container. The necessary feed and discharge lines for the chemical as well as any feed and discharge lines for the inert or compressed gases mentioned or the sensors or the like required for the filling or removal process are transferred to the in both when filling and when removing the chemical existing connections connected to the lock. The connections, e.g. In their design, e.g. in their diameter, they should all be the same. However, one or more connections or connecting pieces can deviate from this same configuration. All connection pieces can also be designed differently.

Die Entleerung des inneren Behälters kann durch Überdruck oder Pumpen erfolgen. Mehrere Anschlüsse sind mit mehreren bis auf den Boden der inneren Schale reichenden Steigrohren aus hochreinem, keine Hilfsmittel enthaltenden Polethylen verbunden. Zweckmäßigerweise erfolgt die Belüftung über ein Membranventil oder Nadelventil. Die Belüftung über das Ventil verhindert das unkontrollierte Austreten von Chemikalien über einen der Steigrohranschlüsse, wenn sich ein chemikalienspezifischer Behälterüberdruck aufgebaut hat. Des weiteren kann bei Unterdruck partikelfreies gefiltertes Gas zum Druckausgleich zugeführt werden.The inner container can be emptied by overpressure or pumping. Several connections are connected to several ascending pipes made of high-purity, no auxiliary materials, reaching to the bottom of the inner shell. The ventilation is expediently carried out via a membrane valve or needle valve. The ventilation via the valve prevents the uncontrolled escape of chemicals through one of the riser pipe connections if a chemical-specific container overpressure has built up. Furthermore, particle-free, filtered gas can be supplied for pressure equalization in the case of negative pressure.

In einer besonderen Ausführungsform des erfindungsgemäßen Behälters wird dieser in einen äußeren Behälter aus Polyethylenrohr eingestellt und durch Streben fixiert. Das Rohr ist durch einen ebenen Unterboden verschlossen und vorzugsweise auf eine Kunststoffpalette montiert. Die Oberseite ist mit einem konvexen Oberboden mit Öffnungen für den Flansch durch Verschweißung verschlossen, wobei ein überhöhter Kragen die Funktion eines Schutzkragen für die auf dem Behälterflansch montierten Armaturen hat. Es ist zweckmäßig, am tiefsten Punkt des konvexen Oberbodens eine nach außen führende Dränage, z.B. ein Rohr, anzubringen. Der obere Rand des äußeren Behälters kann schließlich noch mit einer zusätzlichen Platte abgeschlossen sein.In a special embodiment of the container according to the invention, this is in an outer container made of polyethylene tube adjusted and fixed by struts. The tube is closed by a flat underbody and preferably mounted on a plastic pallet. The upper side is closed by a convex upper floor with openings for the flange by welding, an elevated collar having the function of a protective collar for the fittings mounted on the container flange. It is advisable to install an outward drainage, eg a pipe, at the lowest point of the convex top floor. The upper edge of the outer container can finally be closed with an additional plate.

Der Raum zwischen dem äußeren und dem inneren Behälter kann leer oder aber ganz oder teilweise mit einem Material, beispielsweise einem wärmeisolierenden Material, ausgefüllt sein.The space between the outer and the inner container can be empty or completely or partially filled with a material, for example a heat-insulating material.

Als wärmeisolierendes Material können z.B. Kork, lose Wolle, Mineralfaserstoffe, insbesondere aber Schaumkunststoffe, verwendet werden. Schaumkunststoffe können offen- oder geschlossenzellig sein und sind von thermoplastischen, elastomeren oder duromeren Polymeren bekannt. Beispielsweise kann der Schaumkunststoff aus Polystyrol, Polyvinylchlorid, Polyethylen, Harnstoff-Formaldehyd-Harz, Epoxidharz, Polyimid, insbesondere aber aus Polyurethan, beispielsweise auf Basis von Methyl-bis-phenylisocyanat, bestehen. Vorzugsweise wird der Zwischenraum zwischen äußerem und innerem Behälter mit einem sogenannten Polyurethan-Integralschaum ausgeschäumt.As a heat insulating material e.g. Cork, loose wool, mineral fibers, but especially foamed plastics, can be used. Foam plastics can have open or closed cells and are known from thermoplastic, elastomeric or thermoset polymers. For example, the foam plastic can consist of polystyrene, polyvinyl chloride, polyethylene, urea-formaldehyde resin, epoxy resin, polyimide, but in particular of polyurethane, for example based on methyl bisphenyl isocyanate. The space between the outer and inner container is preferably foamed with a so-called polyurethane integral foam.

Der erfindungsgemäße Chemikalientransportbehälter ermöglicht auch bei Inhalten von 500 l und mehr einen sicheren Transport hochreiner flüssiger, gegebenenfalls auch aggressiver Chemikalien ohne Kontaminationsgefahr und Bruchrisiko. Auch werden größere Temperaturschwankungen beim Transport und bei der Lagerung vermieden.The chemical transport container according to the invention enables the safe transport of highly pure liquid, possibly also aggressive chemicals, even with contents of 500 l and more, without risk of contamination and risk of breakage. There will also be major temperature fluctuations avoided during transport and storage.

Die Neuerung wird anhand der beiliegenden Figur weiter erläutert, in der eine bevorzugte Ausführungsform des neuerungsgemäßen Transportbehälter im Vertikalschnitt schematisch dargestellt ist.The innovation is explained further with reference to the accompanying figure, in which a preferred embodiment of the transport container according to the invention is shown schematically in vertical section.

In der Figur ist die innere Schale mit 1 und die äußere Schale mit 2 bezeichnet. In den Zwischenraum 3 zwischen innerer und äußerer Schale kann über das Ventil 4 ein Gas eindosiert werden. Der Blockflansch 5 verbindet innere und äußere Schale durch Verschweißung und besitzt mehrere, in der Figur nicht gezeigte Anschlüsse für die Zu- und Ableitungen, Steig- oder Tauchrohre und dergleichen. Der innere Behälter ist in einem äußeren Behälter aus Polyethylenrohr 6 eingestellt und durch Streben 7 fixiert. Das Rohr ist durch einen ebenen Unterboden 8 verschlossen und auf eine Palette 9 montiert. Die Oberseite ist mit einem konvexen Oberboden 10 mit einer Öffnung für den Flansch 5 verschlossen. Eine Dränage 11 führt vom tiefsten Punkt des konvexen Oberbodens 10 nach außen. Der äußere Behälter 6 ist nach oben durch eine zusätzliche Platte 12 abgeschlossen.In the figure, the inner shell is denoted by 1 and the outer shell by 2. A gas can be metered into the space 3 between the inner and outer shell via the valve 4. The block flange 5 connects the inner and outer shell by welding and has a plurality of connections (not shown in the figure) for the supply and discharge lines, riser or immersion pipes and the like. The inner container is set in an outer container made of polyethylene tube 6 and fixed by struts 7. The tube is closed by a flat underbody 8 and mounted on a pallet 9. The top is closed with a convex top 10 with an opening for the flange 5. A drainage 11 leads from the lowest point of the convex top floor 10 to the outside. The outer container 6 is closed at the top by an additional plate 12.

Der Raum 13 zwischen dem äußeren und dem inneren Behälter ist im unteren Teil mit einem Schaum 14 ausgeschäumt.The space 13 between the outer and the inner container is foamed in the lower part with a foam 14.

Claims (7)

Transportbehälter für flüssige Chemikalien, insbesondere flüssige Hochreinchemikalien für die Elektronikindustrie, dadurch gekennzeichnet, daß der Behälter aus einer inneren Schale (1) aus hochreinem, keine Hilfsmittel enthaltendem Polyethylen und einer äußeren Schale (2) aus handelsüblichem, Hilfsmittel enthaltendem Polyethylen besteht.Transport container for liquid chemicals, in particular liquid high-purity chemicals for the electronics industry, characterized in that the container consists of an inner shell (1) made of high-purity, non-auxiliary polyethylene and an outer shell (2) made of commercially available, auxiliary polyethylene. Transportbehälter gemäß Anspruch 1, dadurch gekennzeichnet, daß der Raum (3) zwischen innerer und äußerer Schale mit einem Gas gefüllt ist, das über ein Ventil (4) in der äußeren Schale dosiert werden kann.Transport container according to claim 1, characterized in that the space (3) between the inner and outer shell is filled with a gas which can be metered in the outer shell via a valve (4). Transportbehälter gemäß Anspruch 1 und/oder 2, dadurch gekennzeichnet, daß die öffnung mit einem eingeschweißten Blockflansch (5) verschlossen ist.Transport container according to claim 1 and / or 2, characterized in that the opening is closed with a welded block flange (5). Transportbehälter gemäß Anspruch 3, dadurch gekennzeichnet, daß der Blockflansch (5) aus Hilfsmittel enthaltendem Polyethylen besteht und an der chemikalienberührten Innenseite mit einer Platte aus hochreinem, keine Hilfsmittel enthaltendem Polyethylen verschweißt ist.Transport container according to claim 3, characterized in that the block flange (5) consists of auxiliary material-containing polyethylene and is welded on the inside, which is in contact with chemicals, to a plate made of high-purity, non-auxiliary material-containing polyethylene. Transportbehälter gemäß einem oder mehreren der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der Transportbehälter in einen äußeren Behälter (6) aus Polyethylenrohr eingestellt und durch Streben (7) fixiert ist.Transport container according to one or more of claims 1 to 4, characterized in that the transport container is placed in an outer container (6) made of polyethylene tube and fixed by struts (7). Transportbehälter gemäß Anspruch 5, dadurch gekennzeichnet, daß der Raum (13) zwischen äußerem und inneren Behälter ganz oder teilweise mit einem Material (14), beispielsweise einem wärmeisolierenden Material, ausgefüllt ist.Transport container according to claim 5, characterized in that the space (13) between the outer and inner container is completely or partially filled with a material (14), for example a heat-insulating material. Transportbehälter gemäß Anspruch 5 und/oder 6, dadurch gekennzeichnet, daß der äußere Behälter (6) auf eine Kunststoffpalette (9) montiert ist.Transport container according to claim 5 and / or 6, characterized in that the outer container (6) is mounted on a plastic pallet (9).
EP91118276A 1990-11-05 1991-10-26 Container for the transport of chemicals Withdrawn EP0484771A1 (en)

Applications Claiming Priority (2)

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DE9015191U DE9015191U1 (en) 1990-11-05 1990-11-05
DE9015191U 1990-11-05

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EP0484771A1 true EP0484771A1 (en) 1992-05-13

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EP (1) EP0484771A1 (en)
JP (1) JPH04109025U (en)
DE (1) DE9015191U1 (en)

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EP0628488A1 (en) * 1993-06-11 1994-12-14 Compagnie Plastic Omnium Container for the transport, storage and dispensing of chemical products
EP0657368A2 (en) * 1993-12-09 1995-06-14 American Cyanamid Company Container for carrying and dispensing liquid and semi-liquid products
DE19628643A1 (en) * 1996-07-16 1998-01-22 Merck Patent Gmbh Materials for the manufacture of transport containers
ES2170648A1 (en) * 2000-03-17 2002-08-01 Rototank S L Fabrication of polyethylene based containers of e.g. liquids consists of moulding of a hard exterior, for bonding to a foam interior, and final lining
WO2000073154A3 (en) * 1999-05-28 2002-10-03 Honeywell Specialty Chemicals Multi-shell device for storing and transporting chemicals
US9211993B2 (en) 2011-03-01 2015-12-15 Advanced Technology Materials, Inc. Nested blow molded liner and overpack and methods of making same
US9522773B2 (en) 2009-07-09 2016-12-20 Entegris, Inc. Substantially rigid collapsible liner and flexible gusseted or non-gusseted liners and methods of manufacturing the same and methods for limiting choke-off in liners
US9637300B2 (en) 2010-11-23 2017-05-02 Entegris, Inc. Liner-based dispenser

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CH685116A5 (en) * 1992-04-24 1995-03-31 Mueller Verpackungen Container, insert element for this and method and apparatus for removing the container.
DE9411170U1 (en) 1994-07-09 1994-10-27 Riedel De Haen Ag Storage or transport containers
FR2914408B1 (en) * 2007-03-29 2009-08-21 Eric Cognard TRANSPORT AND / OR STORAGE DEVICE HAVING DOUBLE-WALL INSULATING BULB

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EP0657368A2 (en) * 1993-12-09 1995-06-14 American Cyanamid Company Container for carrying and dispensing liquid and semi-liquid products
EP0657368A3 (en) * 1993-12-09 1995-08-09 American Cyanamid Co Container for carrying and dispensing liquid and semi-liquid products.
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WO2000073154A3 (en) * 1999-05-28 2002-10-03 Honeywell Specialty Chemicals Multi-shell device for storing and transporting chemicals
ES2170648A1 (en) * 2000-03-17 2002-08-01 Rototank S L Fabrication of polyethylene based containers of e.g. liquids consists of moulding of a hard exterior, for bonding to a foam interior, and final lining
US9522773B2 (en) 2009-07-09 2016-12-20 Entegris, Inc. Substantially rigid collapsible liner and flexible gusseted or non-gusseted liners and methods of manufacturing the same and methods for limiting choke-off in liners
US9637300B2 (en) 2010-11-23 2017-05-02 Entegris, Inc. Liner-based dispenser
US9211993B2 (en) 2011-03-01 2015-12-15 Advanced Technology Materials, Inc. Nested blow molded liner and overpack and methods of making same

Also Published As

Publication number Publication date
JPH04109025U (en) 1992-09-21
DE9015191U1 (en) 1991-01-17

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