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ES2039151A1 - Concentrating sulphuric acid containing effluent solutions produced in manufacturing titanium dioxide based on the sulphate process - Google Patents

Concentrating sulphuric acid containing effluent solutions produced in manufacturing titanium dioxide based on the sulphate process

Info

Publication number
ES2039151A1
ES2039151A1 ES919102261A ES9102261A ES2039151A1 ES 2039151 A1 ES2039151 A1 ES 2039151A1 ES 919102261 A ES919102261 A ES 919102261A ES 9102261 A ES9102261 A ES 9102261A ES 2039151 A1 ES2039151 A1 ES 2039151A1
Authority
ES
Spain
Prior art keywords
titanium dioxide
effluent solutions
sulphuric acid
acid containing
containing effluent
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
ES919102261A
Other languages
Spanish (es)
Other versions
ES2039151B1 (en
Inventor
Pekka Lammi
Olli Konstari
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.)
Kemira Oyj
Original Assignee
Kemira Oyj
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 Kemira Oyj filed Critical Kemira Oyj
Publication of ES2039151A1 publication Critical patent/ES2039151A1/en
Application granted granted Critical
Publication of ES2039151B1 publication Critical patent/ES2039151B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01GCOMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G23/00Compounds of titanium
    • C01G23/04Oxides; Hydroxides
    • C01G23/047Titanium dioxide
    • C01G23/053Producing by wet processes, e.g. hydrolysing titanium salts
    • C01G23/0532Producing by wet processes, e.g. hydrolysing titanium salts by hydrolysing sulfate-containing salts
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00Sulfur; Compounds thereof
    • C01B17/69Sulfur trioxide; Sulfuric acid
    • C01B17/90Separation; Purification
    • C01B17/901Recovery from spent acids containing metallic ions, e.g. hydrolysis acids, pickling acids
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22BPRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B34/00Obtaining refractory metals
    • C22B34/10Obtaining titanium, zirconium or hafnium
    • C22B34/12Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08
    • C22B34/1236Obtaining 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
    • C22B34/124Obtaining 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
    • C22B34/125Obtaining 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Heat Treatment Of Water, Waste Water Or Sewage (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Catalysts (AREA)

Abstract

METODO DE DEPURACION DE LAS SOLUCIONES EFLUENTES DE LOS PROCESOS DE FABRICACION DE DIOXIDO DE TITANIO. LA PRESENTE INVENCION SE REFIERE A UN METODO PARA DEPURAR SOLUCIONES EFLUENTES DE PROCESOS PRODUCIDAS EN LA FABRICACION DE DIOXIDO DE TITANIO, EN BASE A UN PROCESO DE SULFATO, DE MANERA QUE LAS SOLUCIONES EFLUENTES (11) QUE CONTIENEN ACIDO SULFURICO, PRODUCIDO AL LAVAR HIDROXIDO DE TITANIO, O PARTE DE ELLAS, SE EVAPORAN USANDO UN METODO DE COMPRESION DE VAPOR CON EL FIN DE PRODUCIR UN CONDENSADO PURO (13), O UNA SOLUCION EFLUENTE (14) CONCENTRADA EN CONTENIDO DE ACIDO SULFURICO. LA INVENCION SE REFIERE TAMBIEN A UN METODO PARA FABRICAR DIOXIDO DE TITANIO EN EL QUE SE USA EL METODO DE LA DEPURACION.METHOD OF PURIFICATION OF EFFLUENT SOLUTIONS FROM TITANIUM DIOXIDE MANUFACTURING PROCESSES. THE PRESENT INVENTION REFERS TO A METHOD FOR PURIFYING EFFLUENT SOLUTIONS FROM PROCESSES PRODUCED IN THE MANUFACTURE OF TITANIUM DIOXIDE, BASED ON A SULFATE PROCESS, SO THAT THE EFFLUENT SOLUTIONS (11) CONTAINING SULFURIC ACID, PRODUCED BY WASHING TITANIUM HYDROXIDE TITANIUM, OR PART OF THEM, ARE EVAPORED USING A VAPOR COMPRESSION METHOD IN ORDER TO PRODUCE A PURE CONDENSATE (13), OR A CONCENTRATED EFFLUENT SOLUTION (14) CONTAINING SULFURIC ACID. THE INVENTION ALSO REFERS TO A METHOD FOR MANUFACTURING TITANIUM DIOXIDE IN WHICH THE PURIFICATION METHOD IS USED.

ES9102261A 1990-10-23 1991-10-14 DEPURATION METHOD OF EFFLUENT SOLUTIONS FROM TITANIUM DIOXIDE MANUFACTURING PROCESSES. Expired - Lifetime ES2039151B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI905221A FI89901C (en) 1990-10-23 1990-10-23 purification method

Publications (2)

Publication Number Publication Date
ES2039151A1 true ES2039151A1 (en) 1993-08-16
ES2039151B1 ES2039151B1 (en) 1994-03-16

Family

ID=8531290

Family Applications (1)

Application Number Title Priority Date Filing Date
ES9102261A Expired - Lifetime ES2039151B1 (en) 1990-10-23 1991-10-14 DEPURATION METHOD OF EFFLUENT SOLUTIONS FROM TITANIUM DIOXIDE MANUFACTURING PROCESSES.

Country Status (5)

Country Link
DE (1) DE4132843A1 (en)
ES (1) ES2039151B1 (en)
FI (1) FI89901C (en)
FR (1) FR2668141B1 (en)
GB (1) GB2249086B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104692456A (en) * 2015-01-09 2015-06-10 上海安赐机械设备有限公司 Green and environment-friendly sulfuric acid method titanium dioxide production device and process

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3513120A1 (en) * 1985-04-12 1986-10-23 Bayer Ag, 5090 Leverkusen METHOD FOR PRODUCING TITANIUM DIOXIDE

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2352701A1 (en) * 1973-10-20 1975-06-12 Hoechst Ag PROCESS FOR CONCENTRATING SALTY, DILUTED SULFUR ACID
DE2630196A1 (en) * 1976-07-05 1978-01-19 Bayer Ag METHOD FOR PRODUCING SULFURIC ACID FROM WASTE ACID AND IRON SULFATE
DE3327769A1 (en) * 1983-08-02 1985-02-14 Bayer Ag, 5090 Leverkusen METHOD FOR THE TREATMENT OF THICK ACID
DE3912554C1 (en) * 1989-04-17 1990-07-12 Bayer Ag, 5090 Leverkusen, De

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3513120A1 (en) * 1985-04-12 1986-10-23 Bayer Ag, 5090 Leverkusen METHOD FOR PRODUCING TITANIUM DIOXIDE

Also Published As

Publication number Publication date
FR2668141B1 (en) 1994-04-08
FR2668141A1 (en) 1992-04-24
GB2249086B (en) 1994-10-12
FI905221L (en) 1992-04-24
FI905221A0 (en) 1990-10-23
GB9122347D0 (en) 1991-12-04
DE4132843A1 (en) 1992-04-30
FI89901B (en) 1993-08-31
GB2249086A (en) 1992-04-29
FI89901C (en) 1993-12-10
ES2039151B1 (en) 1994-03-16

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