CA2163484A1 - Procede de traitement de pigments de dioxyde de titane, nouveau pigment de dioxyde de titane et son utilisation dans la fabrication du papier - Google Patents

Procede de traitement de pigments de dioxyde de titane, nouveau pigment de dioxyde de titane et son utilisation dans la fabrication du papier

Info

Publication number
CA2163484A1
CA2163484A1 CA2163484A CA2163484A CA2163484A1 CA 2163484 A1 CA2163484 A1 CA 2163484A1 CA 2163484 A CA2163484 A CA 2163484A CA 2163484 A CA2163484 A CA 2163484A CA 2163484 A1 CA2163484 A1 CA 2163484A1
Authority
CA
Canada
Prior art keywords
titanium dioxide
pigment
layer
alumina
pptg
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.)
Granted
Application number
CA2163484A
Other languages
English (en)
Other versions
CA2163484C (fr
Inventor
Anny Guez
Remy Lorang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Millennium Inorganic Chemicals SA
Original Assignee
Rhone Poulenc Chimie SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9469060&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2163484(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Rhone Poulenc Chimie SA filed Critical Rhone Poulenc Chimie SA
Publication of CA2163484A1 publication Critical patent/CA2163484A1/fr
Application granted granted Critical
Publication of CA2163484C publication Critical patent/CA2163484C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/36—Compounds of titanium
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/63—Inorganic compounds
    • D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
    • D21H17/69—Water-insoluble compounds, e.g. fillers, pigments modified, e.g. by association with other compositions prior to incorporation in the pulp or paper
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/36—Compounds of titanium
    • C09C1/3607—Titanium dioxide
    • C09C1/3653—Treatment with inorganic compounds
    • C09C1/3661—Coating
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/80—Particles consisting of a mixture of two or more inorganic phases
    • C01P2004/82—Particles consisting of a mixture of two or more inorganic phases two phases having the same anion, e.g. both oxidic phases
    • C01P2004/84—Particles consisting of a mixture of two or more inorganic phases two phases having the same anion, e.g. both oxidic phases one phase coated with the other
    • C01P2004/88—Thick layer coatings
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/40—Electric properties
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/63—Inorganic compounds
    • D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
    • D21H17/675—Oxides, hydroxides or carbonates
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • Y10T428/256—Heavy metal or aluminum or compound thereof
    • Y10T428/257—Iron oxide or aluminum oxide
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • Y10T428/258—Alkali metal or alkaline earth metal or compound thereof
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
    • Y10T428/2991—Coated
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31971—Of carbohydrate
    • Y10T428/31993—Of paper
    • Y10T428/31996—Next to layer of metal salt [e.g., plasterboard, etc.]

Abstract

Procédé de traitement de surface d'un pigment de dioxyde de titane caractérisé
en ce qu'il comprend les étapes suivantes:
- on forme une suspension aqueuse de pigments de dioxyde de titane, - on précipite dans une première étape une couche de phosphate d'alumine à la surface du pigment, - on précipite dans une deuxième étape une couche d'alumine sur le pigment, - on récupère le pigment à partir de la suspension;
et pigment de dioxyde de titane caractérisé en ce qu'il comprend un noyau de dioxyde de titane recouvert successivement d'une couche de phosphate d'alumine, puis d'une couche d'alumine, puis d'une couche d'oxyde de magnésium.
CA 2163484 1994-11-23 1995-11-22 Procede de traitement de pigments de dioxyde de titane, nouveau pigment de dioxyde de titane et son utilisation dans la fabrication du papier Expired - Fee Related CA2163484C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9414017A FR2727125B1 (fr) 1994-11-23 1994-11-23 Procede de traitement de pigments de dioxyde de titane, nouveau pigment de dioxyde de titane et son utilisation dans la fabrication du papier
FR9414017 1994-11-23

Publications (2)

Publication Number Publication Date
CA2163484A1 true CA2163484A1 (fr) 1996-05-24
CA2163484C CA2163484C (fr) 2000-10-24

Family

ID=9469060

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2163484 Expired - Fee Related CA2163484C (fr) 1994-11-23 1995-11-22 Procede de traitement de pigments de dioxyde de titane, nouveau pigment de dioxyde de titane et son utilisation dans la fabrication du papier

Country Status (17)

Country Link
US (2) US5665466A (fr)
EP (1) EP0713904B1 (fr)
JP (1) JP2942182B2 (fr)
KR (1) KR0180009B1 (fr)
CN (1) CN1068365C (fr)
AT (1) ATE194996T1 (fr)
AU (1) AU680156B2 (fr)
BR (1) BR9505277A (fr)
CA (1) CA2163484C (fr)
DE (1) DE69518132T2 (fr)
ES (1) ES2151036T3 (fr)
FI (1) FI955620A (fr)
FR (1) FR2727125B1 (fr)
NO (1) NO954705L (fr)
RU (1) RU2116324C1 (fr)
TW (1) TW343222B (fr)
ZA (1) ZA959785B (fr)

Families Citing this family (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9514388D0 (en) * 1995-07-13 1995-09-13 Tioxide Group Services Ltd Titanium dioxide pigments
US5886069A (en) * 1995-11-13 1999-03-23 E. I. Du Pont De Nemours And Company Titanium dioxide particles having substantially discrete inorganic particles dispersed on their surfaces
JP3686167B2 (ja) * 1996-06-10 2005-08-24 日鉄鉱業株式会社 多層膜被覆粉体
US6627336B1 (en) * 1998-05-14 2003-09-30 Showa Denko Kabushiki Kaisha Titanium oxide sol, thin film, and processes for producing these
US7939601B1 (en) 1999-05-26 2011-05-10 Rhodia Inc. Polymers, compositions and methods of use for foams, laundry detergents, shower rinses, and coagulants
US20050124738A1 (en) * 1999-05-26 2005-06-09 The Procter & Gamble Company Compositions and methods for using zwitterionic polymeric suds enhancers
ATE374235T1 (de) 1999-05-26 2007-10-15 Procter & Gamble Flüssige waschmittelzusammensetzungen enthaltend blockpolymere schaumbilder
US7241729B2 (en) * 1999-05-26 2007-07-10 Rhodia Inc. Compositions and methods for using polymeric suds enhancers
WO2000071659A1 (fr) 1999-05-26 2000-11-30 The Procter & Gamble Company Compositions de detergent liquide contenant des activateurs polymeres bloc de mousse
AU781532B2 (en) * 1999-05-26 2005-05-26 Rhodia Inc. Block polymers, compositions and methods of use for foams, laundry detergents, shower rinses and coagulants
ATE268801T1 (de) * 1999-09-14 2004-06-15 Ishihara Sangyo Kaisha Titandioxid pigmente, verfahren zur herstellung desselben und harzzusammensetzung dieses enthaltend
US6342099B1 (en) * 2000-05-01 2002-01-29 Millennium Inorganic Chemicals, Inc. Coated titanium dioxide pigments and processes for production and use
US6376631B1 (en) 2000-09-27 2002-04-23 Rhodia, Inc. Processes to control the residual monomer level of copolymers of tertiary amino monomer with a vinyl-functional monomer
US20030226648A1 (en) * 2002-06-06 2003-12-11 Mcdonnell William T. Multiple ply paperboard material having improved oil and grease resistance and stain masking properties and method for forming same
DE10236366A1 (de) * 2002-08-08 2004-02-19 Kronos International, Inc. Verfahren zur Oberflächenbehandlung eines Titandioxid-Pigments
EP1578872A2 (fr) * 2002-12-30 2005-09-28 E. I. du Pont de Nemours and Company Procede de fabrication d'un pigment de dioxyde de titane hydrosoluble utilisable dans des stratifies de papier
EP1631628B1 (fr) * 2003-05-22 2007-06-27 Kemira Pigments Oy Micro-pigments inorganiques absorbant la lumiere et leur utilisation
DE10332650A1 (de) * 2003-07-18 2005-02-10 Kronos International, Inc. Verfahren zur Oberflächenbehandlung eines Titandioxid-Pigments
US20050129634A1 (en) * 2003-12-16 2005-06-16 Frerichs Scott R. Passivated nano-titanium dioxide particles and methods of making the same
US20070068423A1 (en) * 2005-09-27 2007-03-29 Thiele Erik S Titanium dioxide pigment useful in paper laminates
US7824486B2 (en) 2005-09-27 2010-11-02 E. I. Du Pont De Nemours And Company Paper laminates
US7842131B2 (en) * 2006-01-30 2010-11-30 Kronos International Inc High opacity TiO2 pigment and production method
DE102006004344B4 (de) * 2006-01-30 2008-11-13 Kronos International, Inc. Titandioxid-Pigment mit hoher Opazität und Verfahren zur Herstellung
DE102006012564B4 (de) 2006-03-16 2008-11-06 Kronos International, Inc. Mit Mikrohohlkugeln beschichtetes Titandioxid-Pigment und Verfahren zur Herstellung
US7288146B1 (en) * 2006-03-16 2007-10-30 Kronos International, Inc. Titanium dioxide pigment coated with hollow bodies and method for its manufacture
JP5075587B2 (ja) * 2007-11-02 2012-11-21 サカタインクス株式会社 オフセット印刷用水性プレコート剤
US20090201282A1 (en) * 2008-02-11 2009-08-13 Qualcomm Mems Technologies, Inc Methods of tuning interferometric modulator displays
JP5136395B2 (ja) * 2008-12-25 2013-02-06 堺化学工業株式会社 二酸化チタン顔料とその製造方法
JP5136519B2 (ja) * 2009-06-26 2013-02-06 堺化学工業株式会社 二酸化チタン粒子とその製造方法
US8580028B2 (en) 2010-02-19 2013-11-12 Ferro Corporation Pigment additive for improving solar reflectance
DE102011015856A1 (de) * 2011-04-01 2012-10-04 Kronos International, Inc. Verfahren zur Oberflächenbehandlung eines Titandioxid-Pigments
WO2013003142A1 (fr) * 2011-06-28 2013-01-03 E. I. Du Pont De Nemours And Company Pigments inorganiques traités ayant une photoactivité réduite et des propriétés antimicrobiennes et leur utilisation dans des pâtes liquides de papier
CN102532952B (zh) * 2011-12-30 2013-11-27 锦州钛业有限公司 一种层压纸专用型二氧化钛颜料的制备方法
TWI613261B (zh) * 2012-06-29 2018-02-01 克洛諾斯國際有限公司 將無機色素粒子作表面處理的方法
CN104937167B (zh) 2012-11-13 2017-08-08 纳幕尔杜邦公司 包含自分散性颜料的装饰纸
WO2014078039A1 (fr) 2012-11-13 2014-05-22 E. I. Du Pont De Nemours And Company Pigments auto-dispersibles
CN104937041B (zh) 2012-11-13 2017-10-27 纳幕尔杜邦公司 用于制备自分散性颜料的方法
AU2013345220B2 (en) 2012-11-13 2016-09-08 E. I. Du Pont De Nemours And Company Laminates prepared from decor paper comprising self-dispersing pigments
US9475942B2 (en) 2012-12-07 2016-10-25 Bunge Amorphic Solutions Llc Aluminum phosphate composite materials and compositions
EP2942328A4 (fr) * 2012-12-28 2016-07-20 Seiko Epson Corp Particules à surface revêtue et leur utilisation
CN103709792B (zh) * 2013-12-06 2015-07-15 攀钢集团钛业有限责任公司 一种二氧化钛颜料的制备方法
CN105504885A (zh) * 2014-09-26 2016-04-20 河南佰利联化学股份有限公司 一种金红石型造纸专用钛白粉的制备方法
CN107163623A (zh) * 2017-06-27 2017-09-15 安徽金星钛白（集团）有限公司 一种兼具高热稳定性和遮盖力的钛白粉制备方法
MX2020013738A (es) * 2018-06-19 2021-02-26 Tronox Llc Pigmento de dioxido de titanio tratado con alta adicion de oxido de magnesio, proceso para hacerlo y uso del mismo en la fabricacion de papel.
CN111334092B (zh) * 2020-04-14 2021-11-02 河南佰利联新材料有限公司 一种装饰纸用钛白粉及制备方法
CN112175420A (zh) * 2020-10-09 2021-01-05 安徽金星钛白（集团）有限公司 一种具有高耐光性的金红石型钛白粉粗品及其制备方法与应用

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2668776A (en) * 1950-03-18 1954-02-09 New Jersey Zinc Co Titanium dioxide pigment and method of preparing
BE637980A (fr) * 1962-10-18
FR1392413A (fr) * 1963-05-21 1965-03-12 British Titan Products Procédé de production de pigments de bioxyde de titane et d'émulsions aqueuses de ceux-ci
GB1023590A (en) * 1963-05-21 1966-03-23 British Titan Products Titanium dioxide pigments and compositions therefrom
GB1073338A (en) * 1965-07-21 1967-06-21 British Titan Products Mixed coating process
GB1108832A (en) * 1966-04-12 1968-04-03 British Titan Products Coated titanium dioxide particles and production thereof
GB1336292A (en) * 1970-01-15 1973-11-07 Laporte Industries Ltd Treatment of oxide pigments
DE2255826C3 (de) * 1972-11-15 1980-10-02 Bayer Ag, 5090 Leverkusen Herstellung von nicht nachcalcinierten Titandioxidpigmenten mit hoher Vergrauungsstabilität für Harzkompositionen
US3946134A (en) * 1973-07-23 1976-03-23 The Harshaw Chemical Company Method of encapsulating particles and the resultant product
US4383866A (en) * 1981-05-04 1983-05-17 Ppg Industries, Inc. Metal condensed phosphate hardener coated with reaction product from a metal aluminate and/or a metal borate
US4389455A (en) * 1981-08-21 1983-06-21 Fuji Photo Film Co., Ltd. Photographic resin coated paper
US4461810A (en) * 1983-04-04 1984-07-24 E. I. Du Pont De Nemours And Company TiO2 Pigment bearing a coating with cerium cations and sulfate-, phosphate- or silicate anions and laminate and coating containing same
JPS6248775A (ja) * 1985-08-26 1987-03-03 Ishihara Sangyo Kaisha Ltd グラビアインキ組成物
FI85871C (fi) * 1989-06-26 1992-06-10 Kemira Oy Foerfarande foer belaeggning av titandioxidpigment.
US5248556A (en) * 1991-11-15 1993-09-28 Manfred R. Kuehnle Systhetic whitener pigment
US5554216A (en) * 1992-02-26 1996-09-10 E. I. Du Pont De Nemours And Company High gloss durable TiO2 pigment

Also Published As

Publication number Publication date
FR2727125B1 (fr) 1999-01-29
EP0713904A1 (fr) 1996-05-29
NO954705L (no) 1996-05-24
TW343222B (en) 1998-10-21
FI955620A (fi) 1996-05-24
ZA959785B (en) 1996-05-29
EP0713904B1 (fr) 2000-07-26
DE69518132D1 (de) 2000-08-31
US5942281A (en) 1999-08-24
JP2942182B2 (ja) 1999-08-30
KR960017795A (ko) 1996-06-17
CA2163484C (fr) 2000-10-24
AU680156B2 (en) 1997-07-17
AU3778395A (en) 1996-05-30
US5665466A (en) 1997-09-09
ES2151036T3 (es) 2000-12-16
ATE194996T1 (de) 2000-08-15
FI955620A0 (fi) 1995-11-22
NO954705D0 (no) 1995-11-21
RU2116324C1 (ru) 1998-07-27
CN1132769A (zh) 1996-10-09
KR0180009B1 (ko) 1999-04-01
BR9505277A (pt) 1997-10-21
JPH08225323A (ja) 1996-09-03
DE69518132T2 (de) 2001-03-22
FR2727125A1 (fr) 1996-05-24
CN1068365C (zh) 2001-07-11

Similar Documents

Publication Publication Date Title
CA2163484A1 (fr) Procede de traitement de pigments de dioxyde de titane, nouveau pigment de dioxyde de titane et son utilisation dans la fabrication du papier
AU7897994A (en) Titanium dioxide dispersibility
CA2356048A1 (fr) Methode d'extraction de nickel et/ou cobalt d'un minerai concentre
CA2187471A1 (fr) Pigments pour le couchage du papier, et production et utilisation desdits pigments
EP0649751A3 (fr) Méthode pour la formation d'une image, procédé et dispositif pour la production de plaques décoratives en aluminium.
MY111428A (en) Titanium dioxide slurries
CA2182123A1 (fr) Methode de production de rutile synthetique
RU94041191A (ru) Пигментная двуокись титана и способ ее получения
CA2029623A1 (fr) Methode de separation selective d'un metal non ferreux
GB1479989A (en) Treatment of pigment
AU7412794A (en) Pure-coloured iron oxide direct red pigments and a process for their production as well as their use
CA2161024A1 (fr) Methode pour l'elimination des fines presentes dans un fluide aqueux use servant au traitement des puits
IL112876A (en) Method of reducing the tendency of resinated pigments to self-heat
DE69600078D1 (de) Verfahren zur Herstellung einer wässrigen Lösung von Eisen III Chlorid
DE3864968D1 (de) Feinteilige eisenoxidschwarzpigmente, verfahren zu ihrer herstellung sowie deren verwendung.
EP0881070A3 (fr) Procédé de fabrication d'une plaque acrylique déformable ayant une résistance améliorée à l'abrasion et au rayage, de préférence pour un équipement sanitaire fabriqué par thermoformage
AU677210B2 (en) Card including a data-recording medium, and method of manufacturing the card
JPS6485149A (en) Classifying method
JPS57131202A (en) Production of carrageenan
Scheuemann et al. New developments in hydrogen atmosphere annealing of steel coils
ITMI932131A0 (it) Processo per la produzione di pigmenti rossi diretti di ossido di ferro di colore puro, nonche' loro impiego
DE59103723D1 (de) Spülstein zum durchleiten von gasen und/oder feststoffen in die schmelze eines metallurgischen gefässes sowie verfahren zu seiner herstellung.
KR970010219B1 (en) Prevention method of precipitation in green tea and woorong tea
AU5335596A (en) Process for reducing the formation of artefacts during trans cription of rebonucleic acids to deoxynucleic acids
RU93013242A (ru) Способ получения фосфатного связующего

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed