RU96124773A - A method for producing a precipitated silicon dioxide and a precipitated silicon dioxide produced by this method - Google Patents
A method for producing a precipitated silicon dioxide and a precipitated silicon dioxide produced by this methodInfo
- Publication number
- RU96124773A RU96124773A RU96124773/25A RU96124773A RU96124773A RU 96124773 A RU96124773 A RU 96124773A RU 96124773/25 A RU96124773/25 A RU 96124773/25A RU 96124773 A RU96124773 A RU 96124773A RU 96124773 A RU96124773 A RU 96124773A
- Authority
- RU
- Russia
- Prior art keywords
- paragraphs
- silicon dioxide
- reaction medium
- silicate
- acidifying agent
- Prior art date
Links
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims 42
- 239000000377 silicon dioxide Substances 0.000 title claims 21
- 235000012239 silicon dioxide Nutrition 0.000 title claims 18
- 238000004519 manufacturing process Methods 0.000 title 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N silicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims 21
- 239000012429 reaction media Substances 0.000 claims 17
- 239000002535 acidifier Substances 0.000 claims 12
- 239000000725 suspension Substances 0.000 claims 10
- 238000001914 filtration Methods 0.000 claims 9
- 238000000926 separation method Methods 0.000 claims 8
- -1 aluminum compound Chemical class 0.000 claims 7
- 150000003752 zinc compounds Chemical class 0.000 claims 7
- 229910052782 aluminium Inorganic materials 0.000 claims 6
- 238000001035 drying Methods 0.000 claims 6
- 239000003792 electrolyte Substances 0.000 claims 6
- 235000019749 Dry matter Nutrition 0.000 claims 5
- 239000002244 precipitate Substances 0.000 claims 5
- QIQXTHQIDYTFRH-UHFFFAOYSA-N Stearic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims 4
- 229940091251 Zinc Supplements Drugs 0.000 claims 4
- 238000010521 absorption reaction Methods 0.000 claims 4
- 230000003993 interaction Effects 0.000 claims 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims 4
- 229910052725 zinc Inorganic materials 0.000 claims 4
- 239000011701 zinc Substances 0.000 claims 4
- LZZYPRNAOMGNLH-UHFFFAOYSA-M Cetrimonium bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 claims 3
- 229910004298 SiO 2 Inorganic materials 0.000 claims 3
- 239000003921 oil Substances 0.000 claims 3
- 239000011148 porous material Substances 0.000 claims 3
- 239000000047 product Substances 0.000 claims 3
- 150000003839 salts Chemical class 0.000 claims 3
- 239000011780 sodium chloride Substances 0.000 claims 3
- 235000021355 Stearic acid Nutrition 0.000 claims 2
- 239000003795 chemical substances by application Substances 0.000 claims 2
- 230000032798 delamination Effects 0.000 claims 2
- 229920001971 elastomer Polymers 0.000 claims 2
- 239000000806 elastomer Substances 0.000 claims 2
- 239000002245 particle Substances 0.000 claims 2
- 239000008117 stearic acid Substances 0.000 claims 2
- IYJYQHRNMMNLRH-UHFFFAOYSA-N Sodium aluminate Chemical compound [Na+].O=[Al-]=O IYJYQHRNMMNLRH-UHFFFAOYSA-N 0.000 claims 1
- NWONKYPBYAMBJT-UHFFFAOYSA-L Zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 claims 1
- 239000002253 acid Substances 0.000 claims 1
- 150000007513 acids Chemical class 0.000 claims 1
- 229910052783 alkali metal Inorganic materials 0.000 claims 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims 1
- 150000001875 compounds Chemical class 0.000 claims 1
- 239000008187 granular material Substances 0.000 claims 1
- 150000004820 halides Chemical class 0.000 claims 1
- 150000002823 nitrates Chemical class 0.000 claims 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N o-xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims 1
- 235000021317 phosphate Nutrition 0.000 claims 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 claims 1
- 239000000843 powder Substances 0.000 claims 1
- 229910001388 sodium aluminate Inorganic materials 0.000 claims 1
- 238000005507 spraying Methods 0.000 claims 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 claims 1
- 239000008096 xylene Substances 0.000 claims 1
- 150000003751 zinc Chemical class 0.000 claims 1
- 229960001763 zinc sulfate Drugs 0.000 claims 1
- 229910000368 zinc sulfate Inorganic materials 0.000 claims 1
Claims (1)
(I) готовят исходную ванну, включающую силикат и электролит, причем концентрация силиката (в расчете на SiO2) в вышеуказанной исходной ванне ниже 100 г/л, а концентрация электролита ниже 17 г/л;
(II) в вышеуказанную ванну вводят подкисляющий агент до достижения рН-значения реакционной среды по крайней мере около 7;
(III) к реакционной среде добавляют одновременно подкисляющий агент и силикат,
и высушивают суспензию с содержанием сухого вещества не более 24 мас.%, отличающийся тем, что дополнительно осуществляют одну из следующих двух операций (а) или (б):
(а) после стадии (III) в реакционную среду вводят по крайней мере одно соединение цинка, затем основный агент, и когда вышеуказанное разделение осуществляют путем операций, включающих фильтрацию и расслаивание осадка, полученного после фильтрации, вышеуказанное расслаивание предпочтительно осуществляют в присутствии по крайней мере одного соединения алюминия;
(б) после стадии (III) в реакционную среду одновременно вводят силикат и по крайней мере одно соединение цинка, и когда вышеуказанное разделение осуществляют путем операций, включающих фильтрацию и расслаивание осадка, полученного после фильтрации, расслаивание предпочтительно осуществляют в присутствии по крайней мере одного соединения алюминия.1. The method of obtaining precipitated silica, including the interaction of silicate with an acidifying agent to obtain a suspension of precipitated silica, then separating and drying the resulting suspension, while the deposition is as follows:
(I) prepare an initial bath comprising silicate and an electrolyte, the concentration of silicate (calculated as SiO 2 ) in the above initial bath being below 100 g / l, and the concentration of electrolyte below 17 g / l;
(Ii) an acidifying agent is introduced into the above bath until the pH of the reaction medium is at least about 7;
(III) an acidifying agent and a silicate are simultaneously added to the reaction medium,
and dried suspension with a dry matter content of not more than 24 wt.%, characterized in that additionally carry out one of the following two operations (a) or (b):
(a) after stage (III) at least one zinc compound is introduced into the reaction medium, then the basic agent, and when the above separation is carried out by operations involving filtration and separation of the precipitate obtained after filtration, the above separation is preferably carried out in the presence of at least one aluminum compound;
(b) after stage (III), silicate and at least one zinc compound are simultaneously introduced into the reaction medium, and when the above separation is carried out by operations involving filtration and stratification of the precipitate obtained after filtration, stratification is preferably carried out in the presence of at least one compound aluminum.
(I) готовят исходную ванну, включающую силикат и электролит, причем концентрация силиката (в расчете на SiO2) в исходной ванне ниже 100 г/л, а концентрация электролита ниже 17 г/л;
(II) в вышеуказанную исходную ванну вводят подкисляющий агент до достижения рН-значения реакционной среды по крайней мере около 7;
(III) к реакционной среде одновременно добавляют подкисляющий агент и силикат,
отличающийся тем, что затем осуществляют следующие последовательные стадии:
(IV) в реакционную среду вводят по крайней мере одно соединение цинка;
(V) в реакционную среду вводят основный агент предпочтительно до достижения рН-значения реакционной среды 7,4 - 10, в особенности 7,8 - 9;
(VI) к реакционной среде добавляют подкисляющий агент, предпочтительно до достижения рН-значения реакционной среды по крайней мере 7, в особенности 7 - 8,5;
разделение включает фильтрацию и расслаивание осадка, полученного после фильтрации, причем расслаивание осуществляют в присутствии по крайней мере одного соединения алюминия, высушивают суспензию, содержащую не более 24 мас.% сухого вещества.2. The method according to p. 1, including the interaction of the silicate with an acidifying agent to obtain a precipitate of precipitated silica, then separating and drying the resulting suspension, and carry out the deposition as follows:
(I) prepare an initial bath comprising silicate and an electrolyte, the concentration of silicate (calculated as SiO 2 ) in the initial bath being below 100 g / l, and the concentration of electrolyte below 17 g / l;
(Ii) an acidifying agent is introduced into the abovementioned bath until the pH of the reaction medium is at least about 7;
(III) an acidifying agent and silicate are simultaneously added to the reaction medium,
characterized in that then the following successive stages are carried out:
(Iv) at least one zinc compound is introduced into the reaction medium;
(V) the basic agent is preferably introduced into the reaction medium until the pH of the reaction medium is 7.4 - 10, in particular 7.8 - 9;
(VI) an acidifying agent is added to the reaction medium, preferably until the pH value of the reaction medium is at least 7, in particular 7 to 8.5;
separation involves filtering and exfoliating the precipitate obtained after filtration, the separation being carried out in the presence of at least one aluminum compound, drying the suspension containing not more than 24% by weight of dry matter.
(I) готовят исходную ванну, включающую силикат и электролит, причем концентрация силиката (в расчете на SiO2) в вышеуказанной ванне ниже 100 г/л, а концентрация электролита ниже 17 г/л;
(II) в вышеуказанную исходную ванну вводят подкисляющий агент до достижения рН-значения реакционной среды по крайней мере около 7;
(III) к реакционной среде одновременно добавляют подкисляющий агент и силикат;
(IV) к реакционной среде одновременно добавляют силикат и по крайней мере одно соединение цинка;
и высушивают суспензию, содержащую не более 24 мас.% сухого вещества.4. The method according to claim 1, including the interaction of the silicate with an acidifying agent to obtain a suspension of precipitated silica, then separating and drying the resulting suspension, and the deposition is carried out as follows:
(I) prepare an initial bath comprising silicate and an electrolyte, moreover, the concentration of silicate (based on SiO 2 ) in the above bath is below 100 g / l, and the concentration of electrolyte is below 17 g / l;
(Ii) an acidifying agent is introduced into the abovementioned bath until the pH of the reaction medium is at least about 7;
(III) an acidifying agent and a silicate are simultaneously added to the reaction medium;
(Iv) silicate and at least one zinc compound are simultaneously added to the reaction medium;
and dried suspension containing not more than 24 wt.% dry matter.
29. Двуокись кремния по любому из пп.21 - 28, отличающаяся тем, что она находится в форме сферических шариков со средним размером по крайней мере 80 мкм.28. Silicon dioxide according to any one of paragraphs.21 to 27, characterized in that it has such a pore distribution that the porous volume formed by pores with a diameter of 175 to 275 is at least 50% of the porous volume formed by pores with diameters lower than or equal to 400
29. Silicon dioxide according to any one of paragraphs.21 to 28, characterized in that it is in the form of spherical balls with an average size of at least 80 microns.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9503676 | 1995-03-29 | ||
FR9503676A FR2732330B1 (en) | 1995-03-29 | 1995-03-29 | NOVEL PROCESS FOR PREPARING PRECIPITATED SILICA, NOVEL PRECIPITATED SILICA CONTAINING ZINC AND THEIR USE FOR REINFORCING ELASTOMERS |
PCT/FR1996/000462 WO1996030302A1 (en) | 1995-03-29 | 1996-03-28 | Novel method for preparing precipitated silica, novel zinc-containing precipitated silicas, and use thereof for reinforcing elastomers |
Publications (2)
Publication Number | Publication Date |
---|---|
RU96124773A true RU96124773A (en) | 1999-03-20 |
RU2130425C1 RU2130425C1 (en) | 1999-05-20 |
Family
ID=9477537
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RU96124773A RU2130425C1 (en) | 1995-03-29 | 1996-03-28 | Precipitated silica production process and precipitated silica produced in that process |
Country Status (17)
Country | Link |
---|---|
US (2) | US5958127A (en) |
EP (1) | EP0767758B2 (en) |
JP (1) | JP3304095B2 (en) |
CN (1) | CN1079779C (en) |
AR (1) | AR001455A1 (en) |
AT (1) | ATE188953T1 (en) |
AU (1) | AU692700B2 (en) |
BR (1) | BR9606289A (en) |
CA (1) | CA2191484A1 (en) |
DE (1) | DE69606255T3 (en) |
ES (1) | ES2141488T5 (en) |
FR (1) | FR2732330B1 (en) |
PL (1) | PL183880B1 (en) |
RU (1) | RU2130425C1 (en) |
TR (1) | TR199600955T1 (en) |
TW (1) | TW391978B (en) |
WO (1) | WO1996030302A1 (en) |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2763581B1 (en) * | 1997-05-26 | 1999-07-23 | Rhodia Chimie Sa | PRECIPITATED SILICA FOR USE AS A REINFORCING FILLER FOR ELASTOMERS |
ATE240264T1 (en) * | 1998-01-20 | 2003-05-15 | Rhodia Chimie Sa | SILICICA MICROBALLS WITH SENSORY PROPERTIES IN THE MOUTH, METHOD FOR THEIR PRODUCTION AND TOOTHPASTES THAT CONTAIN THEM |
FR2808266B1 (en) * | 2000-04-28 | 2002-06-14 | Rhodia Chimie Sa | THICKENING PRECIPITATION SILICA GRANULES OBTAINED BY GRANULATION AND THEIR USE AS A THICKENING AGENT IN DENTAL COMPOSITIONS |
DE10062449A1 (en) | 2000-12-14 | 2002-06-20 | Degussa | Doped precipitated silica |
FR2818966B1 (en) * | 2000-12-28 | 2003-03-07 | Rhodia Chimie Sa | PROCESS FOR THE PREPARATION OF PRECIPITATED SILICA CONTAINING ALUMINUM |
WO2002092508A1 (en) * | 2001-05-11 | 2002-11-21 | Rhodia Chimie | Precipitated thickening silica granules obtained by granulation and use thereof as thickening agent in dental compositions |
JP4536375B2 (en) * | 2001-06-28 | 2010-09-01 | ソシエテ ド テクノロジー ミシュラン | Tire tread reinforced with silica with extremely low specific surface area |
EP1419195B1 (en) * | 2001-06-28 | 2010-04-21 | Société de Technologie Michelin | Tyre tread reinforced with silica having a low specific surface area |
DE10146325A1 (en) * | 2001-09-20 | 2003-04-10 | Degussa | Precipitated silica with a high BET / CTAB ratio |
FR2831179B1 (en) | 2001-10-22 | 2005-04-15 | Rhodia Chimie Sa | PROCESS FOR THE AQUEOUS PREPARATION OF SILICA-BASED PIGMENT COMPOSITIONS |
FR2831178B1 (en) | 2001-10-22 | 2006-04-14 | Rhodia Chimie Sa | PIGMENT COMPOSITIONS BASED ON SILICA |
FR2833937B1 (en) * | 2001-12-26 | 2004-11-12 | Rhodia Chimie Sa | SILICA WITH LOW WATER RESUME |
KR100972949B1 (en) † | 2003-01-22 | 2010-07-30 | 에보닉 데구사 게엠베하 | Specially precipitated silicic acids for rubber applications |
DE10353555A1 (en) | 2003-11-14 | 2005-06-30 | Carl Freudenberg Kg | Particle composite, process for their preparation and their use |
DE102004026685B4 (en) * | 2004-05-28 | 2007-07-12 | Carl Freudenberg Kg | Rubber compositions, processes for making elastomers, elastomers and use of composite particles |
US8512664B1 (en) | 2007-07-20 | 2013-08-20 | The National Titanium Dioxide Co. Ltd. (Cristal) | Sodium silicate solutions |
US8734750B2 (en) | 2007-07-20 | 2014-05-27 | The National Titanium Dioxide Co. Ltd. (Cristal) | Sodium silicate solutions |
US7622097B2 (en) * | 2007-07-20 | 2009-11-24 | The National Titanium Bioxide Co., Ltd. (CRISTAL) | Process for hydrothermal production of sodium silicate solutions and precipitated silicas |
FR2962996B1 (en) * | 2010-07-23 | 2012-07-27 | Rhodia Operations | NEW PROCESS FOR THE PREPARATION OF PRECIPITED SILICES |
RU2540640C1 (en) * | 2013-07-11 | 2015-02-10 | Федеральное Государственное Бюджетное Образовательное Учреждение Высшего Профессионального Образования "Нижегородский Государственный Университет Им. Н.И. Лобачевского" | Method of iron oxide pigment obtainment |
CN103468030B (en) * | 2013-08-23 | 2016-05-18 | 确成硅化学股份有限公司 | A kind of preparation method of Aerosil 200 |
KR101986062B1 (en) * | 2016-04-28 | 2019-06-04 | 가부시키가이샤 아도마텍쿠스 | Crystal Silica Particle Material, Method of Manufacturing the Same, Crystal Silica Particle Material-Containing Slurry Composition, Crystal Silica Particle Material-Containing Resin Composition |
CN108383130A (en) * | 2018-05-04 | 2018-08-10 | 福建远翔新材料股份有限公司 | A kind of synthetic method of precipitated hydrated silica |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1467012B1 (en) † | 1964-11-26 | 1969-11-06 | Hoesch Chemie Gmbh | Process for the production of a highly active filler consisting essentially of silica |
US4040858A (en) * | 1974-10-31 | 1977-08-09 | J. M. Huber Corporation | Preparation of precipitated silicas having controlled refractive index |
US4422880A (en) * | 1975-03-12 | 1983-12-27 | J. M. Huber Corporation | Precipitated siliceous products |
AU505536B2 (en) * | 1975-03-12 | 1979-11-22 | J.M. Huber Corp. | Methods for production and use of siliceous products |
FR2632185B1 (en) * | 1988-06-01 | 1992-05-22 | Rhone Poulenc Chimie | SILICA FOR TOOTHPASTE COMPOSITIONS COMPATIBLE IN PARTICULAR WITH ZINC |
FR2671068B1 (en) † | 1990-12-28 | 1993-04-23 | Rhone Poulenc Chimie | NEW SILICAS, THEIR PREPARATION PROCESS AND THEIR USE AS FILLERS, PARTICULARLY FOR PAPERS. |
FR2678259B1 (en) * | 1991-06-26 | 1993-11-05 | Rhone Poulenc Chimie | NOVEL PRECIPITATED SILICA IN THE FORM OF GRANULES OR POWDERS, METHODS OF SYNTHESIS AND USE FOR REINFORCING ELASTOMERS. |
-
1995
- 1995-03-29 FR FR9503676A patent/FR2732330B1/en not_active Expired - Lifetime
-
1996
- 1996-03-28 WO PCT/FR1996/000462 patent/WO1996030302A1/en active IP Right Grant
- 1996-03-28 JP JP52901296A patent/JP3304095B2/en not_active Expired - Lifetime
- 1996-03-28 RU RU96124773A patent/RU2130425C1/en not_active IP Right Cessation
- 1996-03-28 AT AT96910063T patent/ATE188953T1/en not_active IP Right Cessation
- 1996-03-28 PL PL96317423A patent/PL183880B1/en unknown
- 1996-03-28 EP EP96910063A patent/EP0767758B2/en not_active Expired - Lifetime
- 1996-03-28 TR TR96/00955T patent/TR199600955T1/en unknown
- 1996-03-28 AR AR33594896A patent/AR001455A1/en unknown
- 1996-03-28 AU AU53379/96A patent/AU692700B2/en not_active Ceased
- 1996-03-28 CA CA002191484A patent/CA2191484A1/en not_active Abandoned
- 1996-03-28 US US08/737,976 patent/US5958127A/en not_active Expired - Fee Related
- 1996-03-28 DE DE69606255T patent/DE69606255T3/en not_active Expired - Lifetime
- 1996-03-28 CN CN96190423A patent/CN1079779C/en not_active Expired - Fee Related
- 1996-03-28 ES ES96910063T patent/ES2141488T5/en not_active Expired - Lifetime
- 1996-03-28 TW TW085103759A patent/TW391978B/en not_active IP Right Cessation
- 1996-03-28 BR BR9606289A patent/BR9606289A/en not_active IP Right Cessation
-
1999
- 1999-02-11 US US09/248,921 patent/US6146454A/en not_active Expired - Fee Related
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