BR9908003A - Pure titanium dioxide hydrate and process for producing it - Google Patents
Pure titanium dioxide hydrate and process for producing itInfo
- Publication number
- BR9908003A BR9908003A BR9908003-6A BR9908003A BR9908003A BR 9908003 A BR9908003 A BR 9908003A BR 9908003 A BR9908003 A BR 9908003A BR 9908003 A BR9908003 A BR 9908003A
- Authority
- BR
- Brazil
- Prior art keywords
- titanium dioxide
- calculated
- producing
- suspension
- dioxide hydrate
- Prior art date
Links
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
- C01G23/0475—Purification
-
- 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
-
- 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
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/80—Compositional purity
-
- 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
- C01P2006/80—Compositional purity
- C01P2006/82—Compositional purity water content
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)
- Inorganic Chemistry (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
"HIDRATO DE DIóXIDO DE TITâNIO PURO E PROCESSO PARA A PRODUçãO DO MESMO". Hidrato de dióxido de titânio que contém uma proporção inferior a 250 ppm de íons de sulfato e inferior a 50 ppm de íons amónio ou de metal alcalino, calculadas com base em TiO~ 2~, é obtido produzindo-se uma suspensão aquosa com hidrato de dióxido de titânio contendo sulfato, tendo de 2 a 18% em peso, de preferência de 5 a 15 % em peso de sólidos, calculados como TiO~ 2~, sendo o teor de sulfato da suspensão determinado em forma de H~ 2~S0~ 4~. 95 a 100,1 % molar da quantidade estequiométrica de amónia ou de hidróxido de metal alcalino necessária para a neutralização da quantidade calculada de H~ 2~S0~ 4~ são acrescentados com agitação, sendo a suspensão filtrada depois de um período de agitação de 5 a 60 minutos, de preferência de 10 a 30 minutos, e lavada com água com baixo teor de sais, de preferência desionizada, conduzindo-se em seguida uma lavagem por difusão com água desionizada efetuada a uma pressão de 300 a 500 kPa."PURE TITANIUM DIOXIDE HYDRATE AND PROCESS FOR THE PRODUCTION OF THE SAME". Titanium dioxide hydrate containing less than 250 ppm of sulfate ions and less than 50 ppm of ammonium or alkali metal ions, calculated on the basis of TiO ~ 2 ~, is obtained by producing an aqueous suspension with hydrate of titanium dioxide containing sulfate, having from 2 to 18% by weight, preferably from 5 to 15% by weight of solids, calculated as TiO ~ 2 ~, the sulfate content of the suspension being determined in the form of H ~ 2 ~ SO ~ 4 ~. 95 to 100.1 mol% of the stoichiometric amount of ammonia or alkali metal hydroxide required to neutralize the calculated amount of H ~ 2 ~ S0 ~ 4 ~ are added with stirring, the suspension being filtered after a stirring period of 5 to 60 minutes, preferably 10 to 30 minutes, and washed with water with low salt content, preferably deionized, followed by a diffusion wash with deionized water carried out at a pressure of 300 to 500 kPa.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19806471A DE19806471A1 (en) | 1998-02-17 | 1998-02-17 | Pure titanium dioxide hydrate and process for its production |
| PCT/IB1999/000272 WO1999041200A1 (en) | 1998-02-17 | 1999-02-16 | Pure titanium dioxide hydrate and a process for the production thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BR9908003A true BR9908003A (en) | 2001-11-06 |
Family
ID=7857971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR9908003-6A BR9908003A (en) | 1998-02-17 | 1999-02-16 | Pure titanium dioxide hydrate and process for producing it |
Country Status (13)
| Country | Link |
|---|---|
| EP (1) | EP1060127A1 (en) |
| JP (1) | JP2002503620A (en) |
| KR (1) | KR20010072550A (en) |
| CN (1) | CN1291168A (en) |
| AU (1) | AU742966B2 (en) |
| BR (1) | BR9908003A (en) |
| CA (1) | CA2321250A1 (en) |
| DE (1) | DE19806471A1 (en) |
| MY (1) | MY133018A (en) |
| NO (1) | NO20004103L (en) |
| PL (1) | PL342451A1 (en) |
| WO (1) | WO1999041200A1 (en) |
| ZA (1) | ZA991226B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100705990B1 (en) * | 2000-07-31 | 2007-04-12 | 스미또모 가가꾸 가부시키가이샤 | Titanium oxide production process |
| JP2002047012A (en) * | 2000-07-31 | 2002-02-12 | Sumitomo Chem Co Ltd | Method of manufacturing titanium oxide |
| US8071069B2 (en) | 2001-08-22 | 2011-12-06 | Shell Oil Company | Purification of titania |
| US7371276B2 (en) | 2002-08-07 | 2008-05-13 | Ishihara Sangyo Kaisha, Ltd. | Titanium dioxide pigment and method for producing the same and resin composition using the same |
| DE10303287A1 (en) * | 2003-01-28 | 2004-07-29 | Sachtleben Chemie Gmbh | Improving filter cake neutralization in titanium dioxide production by sulfate process, involves using a basic-reacting solution or suspension in the membrane chamber filter press |
| DE102004020213A1 (en) * | 2004-04-22 | 2005-11-24 | Kerr-Mcgee Pigments Gmbh | Composition for chemical mechanical polishing (CMP) |
| TW201940615A (en) * | 2014-12-26 | 2019-10-16 | 日商太陽油墨製造股份有限公司 | Curable resin composition, dry film, cured product and printed circuit board |
| JP6286395B2 (en) * | 2015-08-05 | 2018-02-28 | 太陽インキ製造株式会社 | Curable resin composition, dry film, cured product and printed wiring board |
| DE102016110374A1 (en) * | 2016-06-06 | 2017-12-07 | Huntsman P&A Germany Gmbh | Titanium dioxide sol, process for its preparation and products derived therefrom |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3518053A (en) * | 1968-04-16 | 1970-06-30 | Nat Lead Co | Method for producing an improved titanium dioxide pigment |
| DE2423983C3 (en) * | 1974-05-17 | 1978-09-07 | Bayer Antwerpen N.V., Antwerpen (Belgien) | Process for the preparation of aqueous titanium dioxide hydrate suspensions by pressure filtration |
-
1998
- 1998-02-17 DE DE19806471A patent/DE19806471A1/en not_active Ceased
-
1999
- 1999-02-12 MY MYPI99000511A patent/MY133018A/en unknown
- 1999-02-16 KR KR1020007009010A patent/KR20010072550A/en not_active Application Discontinuation
- 1999-02-16 CA CA002321250A patent/CA2321250A1/en not_active Abandoned
- 1999-02-16 WO PCT/IB1999/000272 patent/WO1999041200A1/en not_active Application Discontinuation
- 1999-02-16 EP EP99902739A patent/EP1060127A1/en not_active Withdrawn
- 1999-02-16 ZA ZA9901226A patent/ZA991226B/en unknown
- 1999-02-16 AU AU22938/99A patent/AU742966B2/en not_active Ceased
- 1999-02-16 PL PL99342451A patent/PL342451A1/en unknown
- 1999-02-16 BR BR9908003-6A patent/BR9908003A/en not_active IP Right Cessation
- 1999-02-16 JP JP2000531403A patent/JP2002503620A/en active Pending
- 1999-02-16 CN CN99803046A patent/CN1291168A/en active Pending
-
2000
- 2000-08-16 NO NO20004103A patent/NO20004103L/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| NO20004103L (en) | 2000-10-16 |
| MY133018A (en) | 2007-10-31 |
| EP1060127A1 (en) | 2000-12-20 |
| NO20004103D0 (en) | 2000-08-16 |
| CN1291168A (en) | 2001-04-11 |
| KR20010072550A (en) | 2001-07-31 |
| JP2002503620A (en) | 2002-02-05 |
| WO1999041200A1 (en) | 1999-08-19 |
| ZA991226B (en) | 2000-08-16 |
| CA2321250A1 (en) | 1999-08-19 |
| PL342451A1 (en) | 2001-06-04 |
| AU742966B2 (en) | 2002-01-17 |
| AU2293899A (en) | 1999-08-30 |
| DE19806471A1 (en) | 1999-08-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| BR9908003A (en) | Pure titanium dioxide hydrate and process for producing it | |
| ATE210079T1 (en) | METHOD FOR PRODUCING SODIUM BICARBONATE, SODIUM CABONATE AND AMMONIUM SULFATE FROM SODIUM SULFATE | |
| BR0110136B1 (en) | bipolar membrane manufacturing process and use of the obtained bipolar membrane. | |
| ATE119501T1 (en) | METHOD FOR PRODUCING HIGHLY PURE CONCENTRATED POTASSIUM HYPOCHLORIDE SOLUTIONS. | |
| ATE67156T1 (en) | PROCESS FOR THE MANUFACTURE OF A FLOCKING AGENT. | |
| PT1076132E (en) | Paper manufacturing process including a step for fixing of mineral fiuller on cellulosic fibres | |
| SE9500264L (en) | Preparation of aluminum salt solutions | |
| KR930017816A (en) | Novel polyaluminum chlorosulfate, preparation method and use thereof | |
| BR0115363A (en) | Treatment of wastewater containing nickel phosphating | |
| ES2106968T3 (en) | PROCEDURE FOR PREPARING CALCIUM SULPHATE. | |
| KR950006029A (en) | Method of electrolyzing aqueous potassium chloride solution | |
| BRPI0508304A (en) | process for processing beta-sulfatoethylsulfonylaniline-2-sulfonic acid starting from a solution in aqueous sulfuric acid | |
| EP0584502A3 (en) | Process for the spontaneous precipitation of sulfates dissolved in water as calcium aluminium sulfate and the application of this process for the preparation of low-chloride gypsum-anhydrite containing aluminium oxide | |
| BR9908918A (en) | Process for the elaboration of fine acid from the preparation of thio2 | |
| CA2365967A1 (en) | Process for the treatment of fly ash, using hydrochloric acid | |
| KR960034079A (en) | Manufacturing method of ultrafine crystalline titanium dioxide | |
| BR0210009A (en) | Co-Retardant Agents for Preparation of Purified Brine | |
| BR0109015B1 (en) | process for purifying sodium phosphate buffer solution used for the absorption of sulfur dioxide from flue gases. | |
| CA2045220A1 (en) | Process for the production of chlorine dioxide | |
| KR890011779A (en) | Basic aluminum chlorosulfate, preparation method thereof and use as coagulant thereof | |
| SE9300779D0 (en) | A METHOD FOR SEPARATING IMPURITIES FROM AN AQUEOUS ALKALI METAL CHLORATE ELECTROLYTE | |
| FI116379B (en) | Process for the recovery of waste sulfuric acid from a chlorine dioxide plant | |
| ZHOU et al. | An experimental study of kinetic oxygen isotope fractionation during CaCO3 polymorphism | |
| DE60102927D1 (en) | METHOD FOR DEBROMINATING AQUEOUS SALT SOLUTIONS BY OZONE | |
| KR960007456A (en) | Dust-free slaked lime and its production method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| B08F | Application fees: application dismissed [chapter 8.6 patent gazette] |
Free format text: REFERENTE A 5A,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. |