DE1467024A1 - Process for the production of pure chlorine dioxide in aqueous solution - Google Patents
Process for the production of pure chlorine dioxide in aqueous solutionInfo
- Publication number
- DE1467024A1 DE1467024A1 DE1964D0044613 DED0044613A DE1467024A1 DE 1467024 A1 DE1467024 A1 DE 1467024A1 DE 1964D0044613 DE1964D0044613 DE 1964D0044613 DE D0044613 A DED0044613 A DE D0044613A DE 1467024 A1 DE1467024 A1 DE 1467024A1
- Authority
- DE
- Germany
- Prior art keywords
- chlorine
- chlorine dioxide
- aqueous solution
- production
- solution
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B11/00—Oxides or oxyacids of halogens; Salts thereof
- C01B11/02—Oxides of chlorine
- C01B11/022—Chlorine dioxide (ClO2)
- C01B11/023—Preparation from chlorites or chlorates
- C01B11/024—Preparation from chlorites or chlorates from chlorites
Description
DEUTSCHS GOLD» UND SILBER-SCHEIDEANSTALT VORMALS ROSSSLBR Frankfurt am Main, Weissfrauenstrasse 9GERMAN GOLD »AND SILVER SCHEIDEANSTALT FORMERLY ROSSSLBR Frankfurt am Main, Weissfrauenstrasse 9
'. Lösung'. solution
Die Erfindung hat ein Verfahren zur Herstellung von reinen Chlordioxid in wässriger Lösung zum Gegenstand, bei welchem duroh Behandlung von Chloritlösungen mit Chlorwasser eine vollständige Umsetzung des Chlorites zu Chlordioxid erfolgt. Die Lösung von reinem Chlordioxid eignet sieh vorteilhaft als bakterizides MIttel und zur Desinfizierung und Reinigung von Trinkwasser«The invention has a method for producing pure chlorine dioxide in aqueous solution to the subject in which duroh treatment Chlorite solutions with chlorine water completely convert the chlorite to chlorine dioxide. The solution from Pure chlorine dioxide is an advantageous bactericidal agent and for the disinfection and purification of drinking water «
Bei der Anwendung von Chlordioxid zu den verschiedensten Zweoken ist es oftmals erforderlich, das Chlordioxid - auoh infolge seiner Explosivität - am Ort der Verwendung herzustellen· wobei in allgemeinen ein möglichst hoher Reinheitsgrad gefordert wird«When using chlorine dioxide for a wide variety of purposes it is often necessary to remove the chlorine dioxide - also as a result of it Explosivity - to be produced at the place of use where in generally the highest possible degree of purity is required «
■ I-■ I-
Es sind zwar viele Verfahren bekannt geworden, welohe eine Lösung dieser Aufgabe anstrebten, aber einerseits duroh zu gerillten Umsatz zu unwirtschaftlich waren oder andererseits durch rreisetsuvm ν·η Chlor die Reinheitsanforderungen nioht in vollem Umfange befriedl*» gen konnten.Many methods have become known, which one solution aspired to this task, but on the one hand duroh to grooved sales were too uneconomical or on the other hand by rreisetsuvm ν · η Chlorine does not fully satisfy the purity requirements. could gen.
So ist es z. B. bekannt, Chlordioxid du roh Umsetzung Von Cbl*.r*tet» mit Mineralsäuren herzustellen« Hierbei gelangt nan über di# Über«· chlorsäure (HClO^) -zum Chlordioxid (010«)· wobei stet· ein* Entwicklung von Chlor (Cl2) auftritt, so dass kein reines Sndfr4dufct erhalten wird. ;So it is z. B. known, chlorine dioxide du raw conversion of Cbl * .r * tet "to be produced with mineral acids" Here, via di # via "· chloric acid (HClO ^) - to chlorine dioxide (010") · with constant * development of chlorine (Cl 2 ) occurs, so that no pure Sndfr4dufct is obtained. ;
Weiterhin ist es bekannt, Chlordioxid aus festen Cbloriten düroh Behandlung mit Chlor herzustellen. Dieses Verfahren verlangt φΗ>··· Sicherheitsvorrichtungen, da das dabei entstehende gasfQrmig^ Chlor dioxid in Konzentration von beispielsweise 5 bis 10 Vol.jt In!Luft» insbesondere über 10 Vol.%. zur Explosion neigt. Auch hierbei Wird als Nebenprodukt Chlor frei, so dass dieses Verfahren zur Bestellung eines reinen Chlordioxids auch infolge aufwendiger It is also known to düroh chlorine dioxide from solid carbonites Treatment with chlorine to produce. This procedure requires φΗ> ··· Safety devices, since the resulting gaseous ^ chlorine Dioxide in a concentration of, for example, 5 to 10 vol.jt in! air » especially over 10% by volume. tends to explode. Here too will free chlorine as a by-product, so this process for ordering a pure chlorine dioxide is also more expensive as a result
909845/1232 - :■. . ..909845/1232 -: ■. . ..
«Art? |1 Al*2 NM 9to3 de·Ätf*«*-^****■&.«Kind? | 1 Al * 2 NM 9to 3 de · Ätf * «* - ^ **** ■ &.
und Verfahreneschritte wenig geeignet ist.and process steps are not very suitable.
Ferner ist es bekannt, Chlordioxid durch Einwirkung von Säuren auf Chlorite herausteilen,«wobei als Zwischenstufe ein« Bildung von chloriger Säure stattfindet. Die Reaktion ist konzentration·· und pH-abhängig, wobei ebenfalls auoh freies Chlor entsteht.It is also known that chlorine dioxide can be separated out by the action of acids on chlorites, with the formation of chlorous acid taking place as an intermediate stage. The reaction depends on the concentration and pH, and free chlorine is also produced.
Nach einem anderen bekannten Verfahren wird unter Anwendung nioht stöOhiometrisoher Mengen duroh Einwirkung von Chlor auf Chlorite in wässriger LUsung Chlordioxid erhalten, wobei jedooh keine voll«· lige Umsetzung von Chlorit zu Chlordioxid erfolgt« Auoh diese Reaktion ist pH-abhängig.Another known method is not used Stoohiometric quantities from the action of chlorine on chlorites obtained chlorine dioxide in aqueous solution, but none of them fully «· The conversion of chlorite to chlorine dioxide takes place. This reaction is pH-dependent.
Der Erfindung liegt die Aufgabenstellung zugrunde» ein Verfahren anzugeben, wefehes die Herstellung von reinen Chlordioxid in wässriger Lösung durch Behandlung einer wässrigen Lüftung von vorsugsweise Natriurachlorit mit einer Chlorlösung bei vollständiger Umsetzung de· Chlor!t» zu Chlordioxid ermöglicht.The invention is based on the task of specifying a method, wefehes the production of pure chlorine dioxide in aqueous Solution by treating an aqueous ventilation of preventive Sodium chlorite with a chlorine solution when the reaction is complete de · chlorine! t »to chlorine dioxide enables.
D«e Kennzeichnende der Erfindung ist darin zu sehen, dass die ι Chloritlttsung mit einer wässrigen Läsung von Chlor umgesetzt wird, welohe mehr als 0,5 β Chlor/1 bis zur max. Löslichkeit de· Chlor·! in VMiir enthält. Vorteilb*fterweise wird als Auegangsprodukt j eine Lüftung von Vatrluaohlorit verwendet. , JThe characteristic of the invention can be seen in the fact that the ι chlorite solution is reacted with an aqueous solution of chlorine, which is more than 0.5 β chlorine / 1 up to the maximum solubility of the · chlorine ·! in VMiir contains. Ventilation from Vatrluaohlorit is advantageously used as the exit product. , J
In einer Anl*g· herden mit eine« Chlorgerät 1000 g gasförmiges Ct}lor/9tunde einom Injektor zugeführt, der mit 2£0 1 Yasser beaufsohlfgt wird. Di· au· de» Injektor abfllessende Vasserraenge enthält k $ Chlor 1* Litter. In diet« wässrige ChlorlÖsung werden in eine» Bealltionez^linder «it Hilfe einer Doeierpuepe 8,6 X einer 30 p!r*xentigen ir|ktriumohloritlusun·; zugeführt« Diese Natriumohloritluftung Wird vor de« Eintritt in den Reaktion·zylinder mit 162 1 Wasser verdünnt·, Da· Verdünnungewasser wird mit Hilfe eines Rotameters gemessen. In dem Reaktionszylinder kommen dann 2580 g Na-In a furnace with a chlorine device, 1000 g of gaseous gas per hour are fed to an injector, which is charged with 2 £ 0 1 of water. Di · au · en »injector abfllessende Vasserraenge contains k $ 1 chlorine * Litter. In the aqueous chlorine solution, 8.6% of a 30 percent iron chloride solution are poured into a "Bealltionez ^ linder" with the help of a dosing puepe; This sodium chloride ventilation is diluted with 162 liters of water before entering the reaction cylinder. The dilution water is measured with the aid of a rotameter. Then 2580 g of Na-
9098*5/1232 Ί9098 * 5/1232 Ί
■n^L; INSPECTED3 *" [ ■ n ^ L; INSPECTED 3 * " [
U67024U67024
triumchlorit gelöst In 170,6 1 Wasser mit 250 1 Chlorwasser zur Reaktion, in denn 1000 g Chlor enthalten sind. Diedabei entstehende Menge gelösten Chlordioxids beträgt 1913 g· Diese hochkonzentrierte wässrige Chlordioxidlösung mit k,5h g Chlordioxid/l wird im oberen Teil des Reaktionszylinders mit 1000 1 Zusatzwasser auf eine ungefährliche Chlordioxidkonzentration verdünnt.trium chlorite dissolved in 170.6 l of water with 250 l of chlorine water for reaction, because 1000 g of chlorine are contained in it. The resulting amount of dissolved chlorine dioxide is 1913 g. This highly concentrated aqueous chlorine dioxide solution with k.5h g of chlorine dioxide / l is diluted in the upper part of the reaction cylinder with 1000 l of additional water to a harmless chlorine dioxide concentration.
Die Analyse einer nach dieser Arbeitewelse hergestellten Chlordioxidlösung enthielt Chlor = 0,02 g/l, Chlordioxid = 1,3U g/l. Der pH-Wert dieser Lösung lag bei pH » 2,85.The analysis of a chlorine dioxide solution prepared according to this procedure contained chlorine = 0.02 g / l, chlorine dioxide = 1.3U g / l. The pH of this solution was pH »2.85.
909845/1232909845/1232
Claims (2)
Dr. Kb/TaSeptember 2, 1968
Dr. Kb / Ta
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1964D0044613 DE1467024A1 (en) | 1964-06-05 | 1964-06-05 | Process for the production of pure chlorine dioxide in aqueous solution |
CH222565A CH441246A (en) | 1964-06-05 | 1965-02-18 | Process for the production of pure chlorine dioxide |
SE442765A SE309577B (en) | 1964-06-05 | 1965-04-06 | |
NL6506855A NL6506855A (en) | 1964-06-05 | 1965-05-31 | |
BE664932D BE664932A (en) | 1964-06-05 | 1965-06-03 | |
FR19473A FR1444328A (en) | 1964-06-05 | 1965-06-03 | Process for the production of pure chlorine dioxide |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1964D0044613 DE1467024A1 (en) | 1964-06-05 | 1964-06-05 | Process for the production of pure chlorine dioxide in aqueous solution |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1467024A1 true DE1467024A1 (en) | 1969-11-06 |
Family
ID=7048432
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1964D0044613 Pending DE1467024A1 (en) | 1964-06-05 | 1964-06-05 | Process for the production of pure chlorine dioxide in aqueous solution |
Country Status (6)
Country | Link |
---|---|
BE (1) | BE664932A (en) |
CH (1) | CH441246A (en) |
DE (1) | DE1467024A1 (en) |
FR (1) | FR1444328A (en) |
NL (1) | NL6506855A (en) |
SE (1) | SE309577B (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4013761A (en) * | 1976-01-23 | 1977-03-22 | Olin Corporation | Chlorine dioxide generation |
US4247531A (en) * | 1979-08-13 | 1981-01-27 | Rio Linda Chemical | Chlorine dioxide generation apparatus and process |
US4250144A (en) * | 1979-06-14 | 1981-02-10 | Fischer & Porter Company | Chlorine dioxide generating system |
DE102014204142A1 (en) | 2014-03-06 | 2015-09-10 | Hans-Jürgen Dörfer | Process and apparatus for preparing aqueous chlorine dioxide solutions |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3134384A1 (en) * | 2022-04-07 | 2023-10-13 | Minerve Technology | Process for producing a dilute chlorine dioxide solution, water treatment process and associated devices |
-
1964
- 1964-06-05 DE DE1964D0044613 patent/DE1467024A1/en active Pending
-
1965
- 1965-02-18 CH CH222565A patent/CH441246A/en unknown
- 1965-04-06 SE SE442765A patent/SE309577B/xx unknown
- 1965-05-31 NL NL6506855A patent/NL6506855A/xx unknown
- 1965-06-03 FR FR19473A patent/FR1444328A/en not_active Expired
- 1965-06-03 BE BE664932D patent/BE664932A/xx unknown
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4013761A (en) * | 1976-01-23 | 1977-03-22 | Olin Corporation | Chlorine dioxide generation |
US4250144A (en) * | 1979-06-14 | 1981-02-10 | Fischer & Porter Company | Chlorine dioxide generating system |
US4247531A (en) * | 1979-08-13 | 1981-01-27 | Rio Linda Chemical | Chlorine dioxide generation apparatus and process |
DE102014204142A1 (en) | 2014-03-06 | 2015-09-10 | Hans-Jürgen Dörfer | Process and apparatus for preparing aqueous chlorine dioxide solutions |
Also Published As
Publication number | Publication date |
---|---|
CH441246A (en) | 1967-08-15 |
BE664932A (en) | 1965-10-01 |
NL6506855A (en) | 1965-12-06 |
SE309577B (en) | 1969-03-31 |
FR1444328A (en) | 1966-07-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
SH | Request for examination between 03.10.1968 and 22.04.1971 |