BR9908918A - Processo para a elaboração de ácido fino a partir da preparação de tio2 - Google Patents
Processo para a elaboração de ácido fino a partir da preparação de tio2Info
- Publication number
- BR9908918A BR9908918A BR9908918-1A BR9908918A BR9908918A BR 9908918 A BR9908918 A BR 9908918A BR 9908918 A BR9908918 A BR 9908918A BR 9908918 A BR9908918 A BR 9908918A
- Authority
- BR
- Brazil
- Prior art keywords
- preparation
- separation
- fine acid
- well
- iron oxide
- Prior art date
Links
- 238000002360 preparation method Methods 0.000 title abstract 5
- 239000002253 acid Substances 0.000 title abstract 4
- 238000000034 method Methods 0.000 title abstract 4
- KWUZCAVKPCRJPO-UHFFFAOYSA-N n-ethyl-4-(6-methyl-1,3-benzothiazol-2-yl)aniline Chemical compound C1=CC(NCC)=CC=C1C1=NC2=CC=C(C)C=C2S1 KWUZCAVKPCRJPO-UHFFFAOYSA-N 0.000 title 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical class N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 5
- 238000000926 separation method Methods 0.000 abstract 4
- 239000001034 iron oxide pigment Substances 0.000 abstract 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 abstract 2
- 229910021529 ammonia Inorganic materials 0.000 abstract 2
- 239000011505 plaster Substances 0.000 abstract 2
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 abstract 1
- 239000011575 calcium Substances 0.000 abstract 1
- 229940043430 calcium compound Drugs 0.000 abstract 1
- 150000001674 calcium compounds Chemical class 0.000 abstract 1
- 229910000358 iron sulfate Inorganic materials 0.000 abstract 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 abstract 1
- 238000006386 neutralization reaction Methods 0.000 abstract 1
- 239000007800 oxidant agent Substances 0.000 abstract 1
- 239000002244 precipitate Substances 0.000 abstract 1
- 238000001556 precipitation Methods 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- 239000010936 titanium Substances 0.000 abstract 1
- 229910052719 titanium Inorganic materials 0.000 abstract 1
- 239000004408 titanium dioxide Substances 0.000 abstract 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 abstract 1
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)
- Geology (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Compounds Of Iron (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
- Removal Of Specific Substances (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
Patente de Invenção:<B>"PROCESSO PARA A ELABORAçãO DE áCIDO FINO A PARTIR DA PREPARAçãO DE TiO~ 2~"<D>. Processo para a preparação de gesso bem como de um pigmento de óxido de ferro a partir do ácido fino obtido na preparação de dióxido de titânio pelo processo de sulfato, caracterizado pelo fato de que em uma primeira etapa é efetuada uma neutralização parcial do ácido fino com um composto de cálcio sob precipitação e eventualmente separação direta de gesso, em seguida a solução remanescente é ulteriormente neutralizada em uma segunda etapa sob separação de um precipitado contendo Ti, Al, Cr, V e eventualmente Fe(III) e a partir da solução contendo sulfato de ferro obtida após a separação do sólido em uma terceira etapa com adição de compostos alcalinos amoníaco bem como eventualmente de amoníaco bem como de um agente de oxidação é preparado um pigmento de óxido de ferro, sendo que a partir da solução contendo (NH~ 4~)~ 2~SO~ 4~ obtida após a separação do pigmento de óxido de ferro é libertado amoníaco mediante adição de CaO e/ou Ca(OH)~ 2~.
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 (1)
| Publication Number | Publication Date |
|---|---|
| BR9908918A true BR9908918A (pt) | 2000-11-28 |
Family
ID=7861669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR9908918-1A BR9908918A (pt) | 1998-03-20 | 1999-03-17 | Processo para a elaboração de ácido fino a partir da preparação de tio2 |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US6416723B1 (pt) |
| EP (1) | EP1064227B1 (pt) |
| JP (1) | JP2002507634A (pt) |
| AU (1) | AU3145699A (pt) |
| BR (1) | BR9908918A (pt) |
| CA (1) | CA2324527A1 (pt) |
| DE (2) | DE19812262A1 (pt) |
| ES (1) | ES2179633T3 (pt) |
| NO (1) | NO20004681L (pt) |
| WO (1) | WO1999048816A1 (pt) |
| ZA (1) | ZA200004500B (pt) |
Families Citing this family (12)
| 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 |
| WO2022104737A1 (zh) * | 2020-11-20 | 2022-05-27 | 成都千砺金科技创新有限公司 | 一种硫酸法钛白粉生产废水全资源循环利用的生产方法 |
| 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 |
Family Cites Families (10)
| 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 |
| DE59409261D1 (de) | 1993-08-12 | 2000-05-11 | Kerr Mcgee Pigments Gmbh & Co | Verfahren zur Aufarbeitung von Dünnsäure |
-
1998
- 1998-03-20 DE DE19812262A patent/DE19812262A1/de not_active Withdrawn
-
1999
- 1999-03-17 ES ES99913263T patent/ES2179633T3/es not_active Expired - Lifetime
- 1999-03-17 US US09/646,280 patent/US6416723B1/en not_active Expired - Fee Related
- 1999-03-17 JP JP2000537806A patent/JP2002507634A/ja active Pending
- 1999-03-17 WO PCT/EP1999/001737 patent/WO1999048816A1/de active IP Right Grant
- 1999-03-17 BR BR9908918-1A patent/BR9908918A/pt not_active IP Right Cessation
- 1999-03-17 CA CA002324527A patent/CA2324527A1/en not_active Abandoned
- 1999-03-17 AU AU31456/99A patent/AU3145699A/en not_active Abandoned
- 1999-03-17 DE DE59902266T patent/DE59902266D1/de not_active Expired - Fee Related
- 1999-03-17 EP EP99913263A patent/EP1064227B1/de not_active Expired - Lifetime
-
2000
- 2000-08-30 ZA ZA200004500A patent/ZA200004500B/xx unknown
- 2000-09-19 NO NO20004681A patent/NO20004681L/no not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| NO20004681D0 (no) | 2000-09-19 |
| AU3145699A (en) | 1999-10-18 |
| NO20004681L (no) | 2000-11-03 |
| ES2179633T3 (es) | 2003-01-16 |
| EP1064227B1 (de) | 2002-08-07 |
| DE59902266D1 (de) | 2002-09-12 |
| EP1064227A1 (de) | 2001-01-03 |
| US6416723B1 (en) | 2002-07-09 |
| DE19812262A1 (de) | 1999-09-23 |
| CA2324527A1 (en) | 1999-09-30 |
| WO1999048816A1 (de) | 1999-09-30 |
| JP2002507634A (ja) | 2002-03-12 |
| ZA200004500B (en) | 2001-05-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| B08F | Application fees: application dismissed [chapter 8.6 patent gazette] |
Free format text: REFERENTE A 6A E 7A ANUIDADES. |
|
| B08K | Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette] |
Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 1855 DE 25/07/2006. |