FI81075B - Foerfarande foer framstaellning av titandioxidpigment. - Google Patents

Foerfarande foer framstaellning av titandioxidpigment. Download PDF

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Publication number
FI81075B
FI81075B FI873502A FI873502A FI81075B FI 81075 B FI81075 B FI 81075B FI 873502 A FI873502 A FI 873502A FI 873502 A FI873502 A FI 873502A FI 81075 B FI81075 B FI 81075B
Authority
FI
Finland
Prior art keywords
exhaust gases
calcination
content
process according
combustion chambers
Prior art date
Application number
FI873502A
Other languages
English (en)
Finnish (fi)
Other versions
FI81075C (sv
FI873502A0 (fi
FI873502A (fi
Inventor
Guenter Lailach
Eckhard Bayer
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 FI873502A0 publication Critical patent/FI873502A0/fi
Publication of FI873502A publication Critical patent/FI873502A/fi
Application granted granted Critical
Publication of FI81075B publication Critical patent/FI81075B/fi
Publication of FI81075C publication Critical patent/FI81075C/sv

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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
    • C01G23/08—Drying; Calcining ; After treatment of titanium oxide
    • 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
    • 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
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/10—Process efficiency
    • Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines

Landscapes

  • Chemical & Material Sciences (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Inorganic Chemistry (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Muffle Furnaces And Rotary Kilns (AREA)

Claims (9)

1. Förfarande för framställning av Ti02-pigment medelst sulfatförfarande genom upplösning av titanhaltiga 5 immaterial med svavelsyra, hydrolysering av det sälunda bildade titanylsulfatet, rening av hydrolysatet och kal-cinering av det renade hydrolysatet i rullugnar, k ä n -netecknat därav, att kalcineringsbetingelserna justeras genom att justera S02-halten i avloppsgaser frän 10 rullugnarna.
2. Förfarande enligt patentkravet 1, k ä n netecknat därav, att S02-halten i avloppsgaserna frän kalcineringen hälls konstant vid ett värde inom om-rädet 2 - 3,5 g S02/m3. 15
3. Förfarande enligt patentkravet 1, k ä n ne tecknat därav, att en del av avloppsgaserna frän kalcineringen leds tillbaka tili förbränningskamrarna i ugnarna.
4. Förfarande enligt patentkravet 3, k ä n n e - 20 tecknat därav, att S02-halten i avloppsgaserna frän kalcineringen hälls konstant vid ett värde inom om-rädet 4 - 8 g S02/m3.
5. Förfarande enligt patentkravet 3 eller 4, kännetecknat därav, att S02-halten i avlopps- 25 gaserna frän kalcineringen hälls konstant vid ett värde inom omrädet 4 - 7 g S02/m3.
6. Förfarande enligt nägot av patentkraven 1-5, kännetecknat därav, att S02-halten i avloppsgaserna frän kalcineringen justeras genom bränsleinmat- 30 ning i förbränningskamrarna.
7. Förfarande enligt nägot av patentkraven 3-6, kännetecknat därav, att avloppsgaserna frän kalcineringen före ledande tillbaka tili förbränningskamrarna avdammas och det avskilda dammet inmatas tillsam- 35 mans med hydrolystatet i rullugnarna. 10 81 075
8. Förfarande enligt nägot av patentkraven 3-7, kännetecknat därav, att avloppsgaserna frän kalcineringen kyls tili 200 - 250 °C i avloppsvännepannor för att alstra änga, varefter de avdanunas och leds delvis 5 tillbaka tili förbränningskamrarna i rullugnarna.
FI873502A 1986-08-14 1987-08-12 Förfarande för framställning av titandioxidpigment FI81075C (sv)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3627655 1986-08-14
DE19863627655 DE3627655A1 (de) 1986-08-14 1986-08-14 Verfahren zur herstellung von titandioxidpigmenten

Publications (4)

Publication Number Publication Date
FI873502A0 FI873502A0 (fi) 1987-08-12
FI873502A FI873502A (fi) 1988-02-15
FI81075B true FI81075B (fi) 1990-05-31
FI81075C FI81075C (sv) 1990-09-10

Family

ID=6307421

Family Applications (1)

Application Number Title Priority Date Filing Date
FI873502A FI81075C (sv) 1986-08-14 1987-08-12 Förfarande för framställning av titandioxidpigment

Country Status (7)

Country Link
US (1) US4902485A (sv)
EP (1) EP0257373B1 (sv)
JP (1) JPS6350319A (sv)
BR (1) BR8704201A (sv)
DE (2) DE3627655A1 (sv)
ES (1) ES2016956B3 (sv)
FI (1) FI81075C (sv)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3742838A1 (de) * 1987-12-17 1989-07-13 Kronos Titan Gmbh Verfahren zur herstellung von titandioxid-pigmenten
US5759256A (en) * 1996-05-24 1998-06-02 Kerr-Mcgee Chemical Corp. Method for making a rutile mixed metal oxide pigment
DE19806474A1 (de) * 1998-02-17 1999-08-19 Kerr Mcgee Pigments Gmbh & Co Verfahren und Ofen zur Herstellung von TiO¶2¶-Pigment nach dem Sulfatverfahren
EP1189841A4 (en) 1999-04-26 2007-04-11 Ferro Corp CONTINUOUS CALCINATION OF MIXED METAL OXIDES
WO2001042520A1 (en) * 1999-12-13 2001-06-14 Pacmin Investments Limited Method of high-temperature digesting titanium containing material with sulfuric acid
CN103922396B (zh) * 2014-04-02 2015-08-19 济南裕兴化工有限责任公司 一种低品位钛矿生产金红石钛白粉的工艺
CN104941768A (zh) * 2015-05-20 2015-09-30 山东东佳集团股份有限公司 硫酸法金红石型钛白粉生产过程中大颗粒的去除方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3105144A (en) * 1959-11-04 1963-09-24 Ibm Magnetic core adder
US3211538A (en) * 1961-05-31 1965-10-12 Chemical Construction Corp Concentration of sulfuric acid pickle liquor
US3105744A (en) * 1961-12-06 1963-10-01 Nat Lead Co Method for producing calcined titanium dioxide pigment material
JPS5120282B2 (sv) * 1972-03-29 1976-06-24
US3868441A (en) * 1973-05-02 1975-02-25 Ethyl Corp Process for reducing trivalent titanium content in slag
DE3230755A1 (de) * 1982-06-07 1983-12-08 Bayer Ag, 5090 Leverkusen Verfahren zur energieeinsparung bei der ti0(pfeil abwaerts)2(pfeil abwaerts)-herstellung
DE3343256A1 (de) * 1983-11-30 1985-06-05 Bayer Ag, 5090 Leverkusen Verfahren zur herstellung von titandioxid

Also Published As

Publication number Publication date
JPS6350319A (ja) 1988-03-03
EP0257373B1 (de) 1990-08-22
DE3764431D1 (de) 1990-09-27
FI81075C (sv) 1990-09-10
BR8704201A (pt) 1988-04-12
FI873502A0 (fi) 1987-08-12
EP0257373A2 (de) 1988-03-02
EP0257373A3 (en) 1988-08-03
FI873502A (fi) 1988-02-15
ES2016956B3 (es) 1990-12-16
DE3627655A1 (de) 1988-03-24
US4902485A (en) 1990-02-20

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Owner name: BAYER AKTIENGESELLSCHAFT