NO945013L - Process for the preparation of titanium dioxide - Google Patents

Process for the preparation of titanium dioxide

Info

Publication number
NO945013L
NO945013L NO945013A NO945013A NO945013L NO 945013 L NO945013 L NO 945013L NO 945013 A NO945013 A NO 945013A NO 945013 A NO945013 A NO 945013A NO 945013 L NO945013 L NO 945013L
Authority
NO
Norway
Prior art keywords
preparation
titanium dioxide
fractions
recycled
washing
Prior art date
Application number
NO945013A
Other languages
Norwegian (no)
Other versions
NO945013D0 (en
Inventor
Bernd Krockert
Klaus-Dieter Velleman
Wolfgang Bockelmann
Gerhard Wiederhoft
Gunter Lailach
Original Assignee
Bayer Ag
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
Application filed by Bayer Ag filed Critical Bayer Ag
Publication of NO945013D0 publication Critical patent/NO945013D0/en
Publication of NO945013L publication Critical patent/NO945013L/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G23/00—Compounds of titanium
    • C01G23/04—Oxides; Hydroxides
    • C01G23/047—Titanium dioxide
    • C01G23/053—Producing by wet processes, e.g. hydrolysing titanium salts
    • C01G23/0532—Producing by wet processes, e.g. hydrolysing titanium salts by hydrolysing sulfate-containing salts
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B34/00—Obtaining refractory metals
    • C22B34/10—Obtaining titanium, zirconium or hafnium
    • C22B34/12—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08
    • C22B34/1236—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08 obtaining titanium or titanium compounds from ores or scrap by wet processes, e.g. by leaching
    • C22B34/124—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08 obtaining titanium or titanium compounds from ores or scrap by wet processes, e.g. by leaching using acidic solutions or liquors
    • C22B34/125—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08 obtaining titanium or titanium compounds from ores or scrap by wet processes, e.g. by leaching using acidic solutions or liquors containing a sulfur ion as active agent
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B34/00—Obtaining refractory metals
    • C22B34/10—Obtaining titanium, zirconium or hafnium
    • C22B34/12—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08
    • C22B34/1236—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08 obtaining titanium or titanium compounds from ores or scrap by wet processes, e.g. by leaching
    • C22B34/1259—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08 obtaining titanium or titanium compounds from ores or scrap by wet processes, e.g. by leaching treatment or purification of titanium containing solutions or liquors or slurries
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Abstract

Det er beskrevet en fremgangsmåte for fremstilling av titandioksyd ved sulfatfremgangsmåten, hvorved vasklngen av det utfelte tltanoksydhydratet gjennom- føres fraksjonert og fraksjonene samt tynnsyren resirkuleres.A process for the preparation of titanium dioxide by the sulphate process is described, whereby the washing of the precipitated titanium oxide hydrate is carried out fractionally and the fractions and the tin acid are recycled.

NO945013A 1993-12-24 1994-12-23 Process for the preparation of titanium dioxide NO945013L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19934344359 DE4344359C2 (en) 1993-12-24 1993-12-24 Process for the production of titanium dioxide by the sulfate process

Publications (2)

Publication Number Publication Date
NO945013D0 NO945013D0 (en) 1994-12-23
NO945013L true NO945013L (en) 1995-06-26

Family

ID=6506127

Family Applications (1)

Application Number Title Priority Date Filing Date
NO945013A NO945013L (en) 1993-12-24 1994-12-23 Process for the preparation of titanium dioxide

Country Status (6)

Country Link
EP (1) EP0659687B1 (en)
BR (1) BR9405229A (en)
DE (2) DE4344359C2 (en)
ES (1) ES2092373T3 (en)
FI (1) FI946041A (en)
NO (1) NO945013L (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100430405B1 (en) * 1999-04-23 2004-05-03 주식회사 나노 manufacturing method of titanium dioxide powder for photocatalyst
DE10332530A1 (en) * 2003-07-17 2005-02-10 Kerr-Mcgee Pigments Gmbh Process for reducing the soluble chromate content in cement and a preparation of cement and water-soluble metal sulphates
CN104477988B (en) * 2014-12-26 2016-08-24 攀枝花东方钛业有限公司 The recoverying and utilizing method of ferrous sulfate heptahydrate centrifuge mother liquor in sulfate process titanium dioxide production

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3912554C1 (en) * 1989-04-17 1990-07-12 Bayer Ag, 5090 Leverkusen, De

Also Published As

Publication number Publication date
DE4344359A1 (en) 1995-06-29
EP0659687A1 (en) 1995-06-28
FI946041A0 (en) 1994-12-22
BR9405229A (en) 1995-08-01
EP0659687B1 (en) 1996-09-25
ES2092373T3 (en) 1996-11-16
DE4344359C2 (en) 1996-09-19
NO945013D0 (en) 1994-12-23
FI946041A (en) 1995-06-25
DE59400741D1 (en) 1996-10-31

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