FI914413A - Foerfarande foer foerkoncentrering av vid framstaellning av titandioxid uppstaoende utspaedd syra och anvaendning av en anordning foer detta foerfarande. - Google Patents

Foerfarande foer foerkoncentrering av vid framstaellning av titandioxid uppstaoende utspaedd syra och anvaendning av en anordning foer detta foerfarande. Download PDF

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Publication number
FI914413A
FI914413A FI914413A FI914413A FI914413A FI 914413 A FI914413 A FI 914413A FI 914413 A FI914413 A FI 914413A FI 914413 A FI914413 A FI 914413A FI 914413 A FI914413 A FI 914413A
Authority
FI
Finland
Prior art keywords
acid
foerfarande
foer
calcination
utspaedd
Prior art date
Application number
FI914413A
Other languages
English (en)
Other versions
FI100717B (fi
FI914413A0 (fi
Inventor
Ernst Boehm
Peter Dirichs
Achim Hartmann
Dietrich Schoenherr
Original Assignee
Kronos Titan 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 Kronos Titan Gmbh filed Critical Kronos Titan Gmbh
Publication of FI914413A0 publication Critical patent/FI914413A0/fi
Publication of FI914413A publication Critical patent/FI914413A/fi
Application granted granted Critical
Publication of FI100717B publication Critical patent/FI100717B/fi

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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
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00—Sulfur; Compounds thereof
    • C01B17/69—Sulfur trioxide; Sulfuric acid
    • C01B17/88—Concentration of sulfuric acid
    • 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
    • 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)
  • Organic Chemistry (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Treating Waste Gases (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
FI914413A 1990-09-20 1991-09-19 Menetelmä sulfaattimenetelmällä tapahtuvassa titaanidioksidivalmistuks essa muodostuvan laimean hapon esikonsentroimiseksi ja tähän menetelmä än tarkoitetun laitteen käyttö FI100717B (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP90118096 1990-09-20
EP90118096A EP0476172B1 (de) 1990-09-20 1990-09-20 Verfahren zur Vorkonzentrierung der bei der Titandioxidherstellung nach dem Sulfatverfahren anfallenden Dünnsäure und Verwendung einer Vorrichtung für dieses Verfahren

Publications (3)

Publication Number Publication Date
FI914413A0 FI914413A0 (fi) 1991-09-19
FI914413A true FI914413A (fi) 1992-03-21
FI100717B FI100717B (fi) 1998-02-13

Family

ID=8204490

Family Applications (1)

Application Number Title Priority Date Filing Date
FI914413A FI100717B (fi) 1990-09-20 1991-09-19 Menetelmä sulfaattimenetelmällä tapahtuvassa titaanidioksidivalmistuks essa muodostuvan laimean hapon esikonsentroimiseksi ja tähän menetelmä än tarkoitetun laitteen käyttö

Country Status (6)

Country Link
EP (1) EP0476172B1 (fi)
CN (1) CN1061579A (fi)
CA (1) CA2050710A1 (fi)
DE (1) DE59003165D1 (fi)
ES (1) ES2045708T3 (fi)
FI (1) FI100717B (fi)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19733247B4 (de) * 1997-08-01 2007-01-04 Kerr-Mcgee Pigments Gmbh Verfahren und Vorrichtung zur adiabatischen Kühlung heißer Gase
CN100428974C (zh) * 2005-05-24 2008-10-29 冯圣君 利用气体余热提浓低浓度酸的方法
WO2015105792A1 (en) 2014-01-07 2015-07-16 Mecs, Inc. Gas inlet system for wet gas scrubber
CN106115634B (zh) * 2016-07-06 2017-12-19 钮德明 一种浓缩钛白废酸的方法
CN115417449A (zh) * 2022-08-16 2022-12-02 宁波新福钛白粉有限公司 一种硫酸法钛白粉转窑尾气余热利用系统及方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1119236A (en) * 1965-06-24 1968-07-10 Chemical Construction Corp A method for the recovery of iron salts and sulphonic acid from spent pickle liquors
US3789902A (en) * 1971-06-18 1974-02-05 Chemical Construction Corp Method for concentrating dilute acidic solutions
FR2441418B1 (fr) * 1978-11-17 1986-05-16 Kanegafuchi Chemical Ind Procede et appareil pour executer des reactions chimiques
FR2452311A1 (fr) * 1979-03-30 1980-10-24 Heurtey Efflutherm Procede de depoussierage d'un gaz et dispositif permettant la mise en oeuvre de ce procede
DE3230755A1 (de) * 1982-06-07 1983-12-08 Bayer Ag, 5090 Leverkusen Verfahren zur energieeinsparung bei der ti0(pfeil abwaerts)2(pfeil abwaerts)-herstellung
DE3736111A1 (de) * 1987-10-26 1989-05-03 Kronos Titan Gmbh Verfahren zur energie- und materialsparenden aufarbeitung der bei der titandioxidherstellung nach dem sulfatverfahren anfallenden duennsaeure

Also Published As

Publication number Publication date
EP0476172B1 (de) 1993-10-20
FI100717B (fi) 1998-02-13
ES2045708T3 (es) 1994-01-16
FI914413A0 (fi) 1991-09-19
CN1061579A (zh) 1992-06-03
DE59003165D1 (de) 1993-11-25
CA2050710A1 (en) 1992-03-21
EP0476172A1 (de) 1992-03-25

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