NO20004681L - FremgangsmÕte for Õ opparbeide avfallssyre som oppstÕr ved TiO2-fremstilling - Google Patents

FremgangsmÕte for Õ opparbeide avfallssyre som oppstÕr ved TiO2-fremstilling

Info

Publication number
NO20004681L
NO20004681L NO20004681A NO20004681A NO20004681L NO 20004681 L NO20004681 L NO 20004681L NO 20004681 A NO20004681 A NO 20004681A NO 20004681 A NO20004681 A NO 20004681A NO 20004681 L NO20004681 L NO 20004681L
Authority
NO
Norway
Prior art keywords
waste acid
separation
oxide pigment
preparation
precipitation
Prior art date
Application number
NO20004681A
Other languages
English (en)
Other versions
NO20004681D0 (no
Inventor
Gerhard Auer
Guenter Lailach
Ulrich Meisen
Werner Schuy
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 NO20004681D0 publication Critical patent/NO20004681D0/no
Publication of NO20004681L publication Critical patent/NO20004681L/no

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
    • C01C1/00—Ammonia; Compounds thereof
    • C01C1/02—Preparation, purification or separation of ammonia
    • C01C1/026—Preparation of ammonia from inorganic compounds
    • C01C1/028—Preparation of ammonia from inorganic compounds from ammonium sulfate or sulfite
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F11/00—Compounds of calcium, strontium, or barium
    • C01F11/46—Sulfates
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00—Compounds of iron
    • C01G49/02—Oxides; Hydroxides
    • C01G49/06—Ferric oxide [Fe2O3]
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B11/00—Calcium sulfate cements
    • C04B11/26—Calcium sulfate cements strating from chemical gypsum; starting from phosphogypsum or from waste, e.g. purification products of smoke
    • C04B11/262—Calcium sulfate cements strating from chemical gypsum; starting from phosphogypsum or from waste, e.g. purification products of smoke waste gypsum other than phosphogypsum
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/12—Surface area
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/42—Magnetic properties
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/60—Optical properties, e.g. expressed in CIELAB-values
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/60—Optical properties, e.g. expressed in CIELAB-values
    • C01P2006/62—L* (lightness axis)
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/60—Optical properties, e.g. expressed in CIELAB-values
    • C01P2006/63—Optical properties, e.g. expressed in CIELAB-values a* (red-green axis)
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/60—Optical properties, e.g. expressed in CIELAB-values
    • C01P2006/64—Optical properties, e.g. expressed in CIELAB-values b* (yellow-blue axis)

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • General Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Geology (AREA)
  • Structural Engineering (AREA)
  • Compounds Of Iron (AREA)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Removal Of Specific Substances (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Abstract

Oppfinnelsen vedrrer en fremgangsmåte for å fremstille gips og et jem-oksid pigment. fra avfallssyre som fremkommer fra fremstillingen av titan dioksid i følge sulfat fremgangsmåten. Oppfinnelsen erat i et innledende trinn nøytraliseres avfallssyren delvis ved å benytte en kalsium forbindelse, hvilket resulterer i utfelling og mulig direkte separasjon av gips. Den gjenværende lsningen nytraliseres videre i et andre trinn med utfelling av et bunnfall inneholdende Ti, Al, Cr, V og eventuelt Fe(IU). Fra den jem sulfat inneholdende lsningen som oppnås etter separasjonen av det faste stoffet, fremstilles et jem-oksid pigment i et tredje trinn ved tilsetning av alkaliske forbindelser og eventuelt ammoniakk og et oksideringsmiddel. Ved å tilsette CaO. og/eller Ca(OH)frigis ammoniakk fra den (NH^SOinneholdende løsningen som oppnås etter separasjonen av jern-oksid pigmentet.
NO20004681A 1998-03-20 2000-09-19 FremgangsmÕte for Õ opparbeide avfallssyre som oppstÕr ved TiO2-fremstilling NO20004681L (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19812262A DE19812262A1 (de) 1998-03-20 1998-03-20 Verfahren zur Aufarbeitung von Dünnsäure aus der TiO2-Herstellung
PCT/EP1999/001737 WO1999048816A1 (de) 1998-03-20 1999-03-17 VERFAHREN ZUR AUFARBEITUNG VON DÜNNSÄURE AUS DER TiO2-HERSTELLUNG

Publications (2)

Publication Number Publication Date
NO20004681D0 NO20004681D0 (no) 2000-09-19
NO20004681L true NO20004681L (no) 2000-11-03

Family

ID=7861669

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20004681A NO20004681L (no) 1998-03-20 2000-09-19 FremgangsmÕte for Õ opparbeide avfallssyre som oppstÕr ved TiO2-fremstilling

Country Status (11)

Country Link
US (1) US6416723B1 (no)
EP (1) EP1064227B1 (no)
JP (1) JP2002507634A (no)
AU (1) AU3145699A (no)
BR (1) BR9908918A (no)
CA (1) CA2324527A1 (no)
DE (2) DE19812262A1 (no)
ES (1) ES2179633T3 (no)
NO (1) NO20004681L (no)
WO (1) WO1999048816A1 (no)
ZA (1) ZA200004500B (no)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5058194B2 (ja) * 2002-12-20 2012-10-24 石原産業株式会社 土壌または水の処理方法
CN100415665C (zh) * 2005-06-29 2008-09-03 刘世琦 一种钛白废酸的综合利用方法
JP2008143763A (ja) * 2006-12-13 2008-06-26 Toshibumi Kageyama 二酸化チタンの製造の過程で生成する廃棄酸からの二酸化チタン、硫酸カルシウム及び酸化鉄の製造方法
JP5086021B2 (ja) * 2007-10-03 2012-11-28 Ａｇｃセイミケミカル株式会社 稀土類元素の回収方法
JP6638345B2 (ja) * 2015-03-17 2020-01-29 住友大阪セメント株式会社 石膏の製造方法およびセメント組成物の製造方法
CN105236496A (zh) * 2015-11-24 2016-01-13 郭秋丰 氨循环氨法制备氧化铁黑的生产方法
RU2656047C1 (ru) * 2017-05-23 2018-05-30 Валерий Константинович Ларин Способ получения железооксидных пигментов
DE102017211730A1 (de) * 2017-07-10 2019-01-10 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Verfahren zur Calciumsulfatentfernung aus Calciumsulfathaltigem Bauschutt
SG11202103902TA (en) * 2018-12-14 2021-05-28 Avertana Ltd Methods of extraction of products from titanium-bearing materials
CN111320403B (zh) * 2020-03-31 2022-01-25 湖北大学 通过钛白废酸制备多形貌α半水石膏的方法及所得石膏
JP2023509228A (ja) * 2020-11-20 2023-03-07 成都千砺金科技創新有限公司 硫酸法チタン白生産廃水の完全資源化リサイクル方法
CN116040687A (zh) * 2022-11-01 2023-05-02 攀枝花末微环保科技有限公司 硫酸法钛白废酸的综合利用方法和硫酸法钛白生产工艺
CN116589127A (zh) * 2023-05-22 2023-08-15 龙佰四川钛业有限公司 一种钛白废水无废化处理方法
FR3163361A1 (fr) * 2024-06-14 2025-12-19 Veolia Environnement Procédé de traitement d’effluents contenant des sulfates métalliques

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3016286A (en) 1960-02-29 1962-01-09 Ishihara Sangyo Kaisha Method for the treatment of waste acid resulting from titanium dioxide production
US3375066A (en) * 1963-08-24 1968-03-26 Yawata Chem Ind Co Ltd Process for the continuous production of gypsum and iron oxide from waste sulfuric acid pickle liquor and a calcium compound
GB1421773A (en) 1972-10-20 1976-01-21 Laporte Industries Ltd Production of iron oxide
CA1053876A (en) 1973-12-14 1979-05-08 Arthur A. Bellinger Method and means of growing coarse gypsum and magnetite
US4137293A (en) 1977-12-16 1979-01-30 Ishihara Sangyo Kaisha, Ltd. Producing gypsum and magnetite from ferrous sulfate and separating
US4137292A (en) 1978-03-02 1979-01-30 Uop Inc. Purification of titanium trichloride
SU947050A1 (ru) * 1980-12-01 1982-07-30 Институт Металлургии Им.А.А.Байкова Способ получени гипса и магнетита
DE3327769A1 (de) 1983-08-02 1985-02-14 Bayer Ag, 5090 Leverkusen Verfahren zur aufarbeitung von duennsaeuren
GB9213998D0 (en) 1992-07-01 1992-08-12 Tioxide Group Services Ltd Process for preparing calcium sulphate
EP0638515B1 (de) 1993-08-12 2000-04-05 Kerr-McGee Pigments GmbH & Co. KG Verfahren zur Aufarbeitung von Dünnsäure

Also Published As

Publication number Publication date
EP1064227A1 (de) 2001-01-03
NO20004681D0 (no) 2000-09-19
BR9908918A (pt) 2000-11-28
DE19812262A1 (de) 1999-09-23
JP2002507634A (ja) 2002-03-12
ES2179633T3 (es) 2003-01-16
DE59902266D1 (de) 2002-09-12
EP1064227B1 (de) 2002-08-07
CA2324527A1 (en) 1999-09-30
ZA200004500B (en) 2001-05-30
WO1999048816A1 (de) 1999-09-30
US6416723B1 (en) 2002-07-09
AU3145699A (en) 1999-10-18

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