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NO20040360L - Process for neutralization and recycling of residue from titanium dioxide production according to the sulphate method. - Google Patents

Process for neutralization and recycling of residue from titanium dioxide production according to the sulphate method.

Info

Publication number
NO20040360L
NO20040360L NO20040360A NO20040360A NO20040360L NO 20040360 L NO20040360 L NO 20040360L NO 20040360 A NO20040360 A NO 20040360A NO 20040360 A NO20040360 A NO 20040360A NO 20040360 L NO20040360 L NO 20040360L
Authority
NO
Norway
Prior art keywords
residue
titanium dioxide
neutralization
recycling
production according
Prior art date
Application number
NO20040360A
Other languages
Norwegian (no)
Inventor
Hartmut Wagner
Horst Ronkholz
Wilhelm-Friedrich Wefers
Guenter Kuna
Mattias Kretschmer
Original Assignee
Sachtleben Chemie Gmbh
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 Sachtleben Chemie Gmbh filed Critical Sachtleben Chemie Gmbh
Publication of NO20040360L publication Critical patent/NO20040360L/en

Links

Classifications

    • 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
    • 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
    • C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
    • C22B7/006—Wet processes
    • C22B7/008—Wet processes by an alkaline or ammoniacal leaching
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Manufacturing & Machinery (AREA)
  • Inorganic Chemistry (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Processing Of Solid Wastes (AREA)
  • Catalysts (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

Production of titanium dioxide by the sulfate process involving decomposing titanium-containing raw material with sulfuric acid and filtering the decomposition residue in a membrane chamber filter press, is such that the residue-containing filter cake is neutralized in the press with a basic-reacting solution or suspension.
NO20040360A 2003-01-28 2004-01-27 Process for neutralization and recycling of residue from titanium dioxide production according to the sulphate method. NO20040360L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2003103287 DE10303287A1 (en) 2003-01-28 2003-01-28 Improving filter cake neutralization in titanium dioxide production by sulfate process, involves using a basic-reacting solution or suspension in the membrane chamber filter press

Publications (1)

Publication Number Publication Date
NO20040360L true NO20040360L (en) 2004-07-29

Family

ID=32602998

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20040360A NO20040360L (en) 2003-01-28 2004-01-27 Process for neutralization and recycling of residue from titanium dioxide production according to the sulphate method.

Country Status (7)

Country Link
EP (1) EP1443121B1 (en)
AT (1) ATE315669T1 (en)
DE (2) DE10303287A1 (en)
ES (1) ES2257713T3 (en)
NO (1) NO20040360L (en)
PL (1) PL209906B1 (en)
SI (1) SI1443121T1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010020820A1 (en) * 2010-05-18 2011-11-24 Crenox Gmbh Adsorbent containing titanium and iron compounds
DE102010060127A1 (en) * 2010-10-22 2012-04-26 Crenox Gmbh Use of digestion residue from titanium dioxide production as a photocatalytically active substance
WO2012163350A1 (en) 2011-05-31 2012-12-06 Sachtleben Chemie Gmbh Process for preparing titanium dioxide
WO2014106506A1 (en) 2013-01-07 2014-07-10 Sachtleben Chemie Gmbh Titanium-containing aggregate, method for the production thereof and use thereof
CN108264251B (en) * 2018-01-18 2020-06-05 中国有色集团（广西）平桂飞碟股份有限公司 Method for converting titanium white red gypsum into white gypsum and enriching titanium and iron
CN113845144A (en) * 2021-09-30 2021-12-28 中国有色集团（广西）平桂飞碟股份有限公司 Harmless resource utilization method for titanium dioxide acidolysis waste by sulfuric acid process
CN118649981B (en) * 2024-07-15 2025-06-27 昆明理工大学 Method for recycling acidolysis waste residues of titanium dioxide by sulfuric acid method

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2951749A1 (en) * 1979-12-21 1981-07-02 Bayer Ag, 5090 Leverkusen METHOD FOR PROCESSING DIGESTION RESIDUES IN TITANIUM DIOXIDE PRODUCTION
DE3343256A1 (en) * 1983-11-30 1985-06-05 Bayer Ag, 5090 Leverkusen METHOD FOR PRODUCING TITANIUM DIOXIDE
DE3736111A1 (en) * 1987-10-26 1989-05-03 Kronos Titan Gmbh METHOD FOR THE ENERGY-SAVING AND MATERIAL-SAVING RENEWAL OF THE DUENOUS ACID INVOLVED IN TITANIUM OXIDE MANUFACTURE AFTER THE SULPHATE PROCESS
DE4027105A1 (en) * 1990-08-28 1992-03-05 Bayer Ag METHOD FOR PROCESSING DIGESTION RESIDUES FROM TITANIUM DIOXIDE PRODUCTION
DE4344162A1 (en) * 1993-12-23 1995-06-29 Bayer Ag Process for the production of titanium dioxide by the sulfate process
DE19725021C5 (en) * 1997-06-13 2013-06-13 Crenox Gmbh Low-sulfur, neutral, inert, finely divided filler, process for its preparation and its use
DE19806471A1 (en) * 1998-02-17 1999-08-19 Kerr Mcgee Pigments Gmbh & Co Pure titanium dioxide hydrate and process for its production
DE10106539A1 (en) * 2001-02-13 2002-08-22 Kerr Mcgee Pigments Gmbh & Co Process for the extraction of titanium dioxide from digestion residues of a sulphate process

Also Published As

Publication number Publication date
PL209906B1 (en) 2011-11-30
ES2257713T3 (en) 2006-08-01
DE10303287A1 (en) 2004-07-29
DE502004000235D1 (en) 2006-04-06
EP1443121B1 (en) 2006-01-11
PL364620A1 (en) 2004-08-09
EP1443121A1 (en) 2004-08-04
ATE315669T1 (en) 2006-02-15
SI1443121T1 (en) 2006-08-31

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Legal Events

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FC2A Withdrawal, rejection or dismissal of laid open patent application