SE9702207D0 - Polysilcate microgels and silica-based materials - Google Patents
Polysilcate microgels and silica-based materialsInfo
- Publication number
- SE9702207D0 SE9702207D0 SE9702207A SE9702207A SE9702207D0 SE 9702207 D0 SE9702207 D0 SE 9702207D0 SE 9702207 A SE9702207 A SE 9702207A SE 9702207 A SE9702207 A SE 9702207A SE 9702207 D0 SE9702207 D0 SE 9702207D0
- Authority
- SE
- Sweden
- Prior art keywords
- polysilicate
- ion
- microgels
- aqueous silicate
- salt
- Prior art date
Links
Abstract
The present invention relates to polysilicate microgels, their preparation and use in paper making and water purification, the polysilicate microgels being obtainable by a process which comprises bringing into contact (i) particles of a salt AB with an aqueous silicate or polysilicate solution, (ii) an ion A with an ion B in the presence of an aqueous silicate or polysilicate solution, whereby the salt AB is precipitating in the aqueous phase, or (iii) an ion A with an ion B in the presence of an aqueous silicate or polysilicate solution, whereby the ions A and B represent ions of a precipitable salt AB having a pK s value of at least 4, measured at 20 °C in water. The invention further relates to aqueous silicate or polysilicate solutions, their preparations and use as precursors for polysilicate microgels. The aqueous silicate or polysilicate solutions contain an ion A which is calcium or magnesium, wherein the molar ratio of SiO 2 :A is less than 2000:1 and higher than 1:1, or an ion B which is carbonate, sulfate or phosphate, wherein the molar ratio is SiO 2 :B is less than 2000:1 and higher than 1:1.
Priority Applications (17)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9702207A SE9702207D0 (en) | 1997-06-09 | 1997-06-09 | Polysilcate microgels and silica-based materials |
IDW991556D ID23976A (en) | 1997-06-09 | 1998-06-08 | POLYYLICIC MICROGELS AND SILICA BASED MATERIALS |
RU2000100335/12A RU2189351C2 (en) | 1997-06-09 | 1998-06-08 | Polysilicate microgels and silicon dioxide-based materials |
JP50228699A JP3487511B2 (en) | 1997-06-09 | 1998-06-08 | Materials based on polysilicate microgels and silica |
AU80489/98A AU736396B2 (en) | 1997-06-09 | 1998-06-08 | Polysilicate microgels and silica-based materials |
CA002292577A CA2292577C (en) | 1997-06-09 | 1998-06-08 | Polysilicate microgels and silica-based materials |
PCT/SE1998/001102 WO1998056716A1 (en) | 1997-06-09 | 1998-06-08 | Polysilicate microgels and silica-based materials |
BR9811257-0A BR9811257A (en) | 1997-06-09 | 1998-06-08 | Polysilicate microgels and silica-based materials. |
AT98928775T ATE550298T1 (en) | 1997-06-09 | 1998-06-08 | METHOD FOR PRODUCING POLYSILICATE MICROGELS |
EP98928775A EP0989956B1 (en) | 1997-06-09 | 1998-06-08 | Process for the preparation of polysilicate microgels |
CNB988059975A CN1321887C (en) | 1997-06-09 | 1998-06-08 | Polysilicate microgels and silica-based materials |
KR10-1999-7011222A KR100372358B1 (en) | 1997-06-09 | 1998-06-08 | Polysilicate microgels and silica-based materials |
PT98928775T PT989956E (en) | 1997-06-09 | 1998-06-08 | Process for the preparation of polysilicate microgels |
CA002481870A CA2481870C (en) | 1997-06-09 | 1998-06-08 | Polysilicate microgels and silica-based materials |
ES98928775T ES2383951T3 (en) | 1997-06-09 | 1998-06-08 | Process for the preparation of polysilicate microgels |
NO19996056A NO329169B1 (en) | 1997-06-09 | 1999-12-08 | Process for preparing aqueous polysilicate microgels |
US10/186,450 US6673208B2 (en) | 1997-06-09 | 2002-07-01 | Polysilicate microgels and silica-based materials |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9702207A SE9702207D0 (en) | 1997-06-09 | 1997-06-09 | Polysilcate microgels and silica-based materials |
Publications (1)
Publication Number | Publication Date |
---|---|
SE9702207D0 true SE9702207D0 (en) | 1997-06-09 |
Family
ID=20407318
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE9702207A SE9702207D0 (en) | 1997-06-09 | 1997-06-09 | Polysilcate microgels and silica-based materials |
Country Status (1)
Country | Link |
---|---|
SE (1) | SE9702207D0 (en) |
-
1997
- 1997-06-09 SE SE9702207A patent/SE9702207D0/en unknown
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA2292577A1 (en) | Polysilicate microgels and silica-based materials | |
BR0208594A (en) | Methods of corrosion inhibition in aqueous systems and of preparing a composition comprising mono, bis and oligomeric phosphinosuccinic acid adducts, and aqueous composition | |
NZ336272A (en) | The use of calcium carbonate in an acidic aqueous media for papermaking | |
PL352225A1 (en) | Stable silica soles having large specific surface and improved activity | |
NZ509463A (en) | Preparation of anionic nanocomposites and their use as retention and drainage aids in papermaking | |
DK290288A (en) | PROCEDURE FOR THE PREPARATION OF BARIUM SULFATE WITH CHEMOREACTIVE SURFACE | |
RU2000100335A (en) | POLYSILICATE MICROGELS AND MATERIALS BASED ON SILICON DIOXIDE | |
ATE533731T1 (en) | METHOD FOR PRODUCING A PRECIPITATED SILICIC ACID WITH LOW WATER ABSORPTION | |
NZ506157A (en) | Process for making a stable organosilanized colloidal silica suspension | |
BR0113489A (en) | Water-soluble packaging containing liquid compositions | |
JPS5792520A (en) | Preparation of spherical calcium carbonate | |
SE9702207D0 (en) | Polysilcate microgels and silica-based materials | |
BR9408571A (en) | Solid compositions containing salts of maleic acid and amine oxide | |
ATE233562T1 (en) | USE OF HYALURONIC ACID TO PRODUCE AN AQUEOUS SOLUTION USABLE AS AN INTRA-ARTICULAR CLEANING SOLUTION | |
BR9408563A (en) | Process for the production of solid formulations containing amine oxide surfactants | |
AU2001239591A1 (en) | Process for purifying aqueous buffer solutions | |
SE0001712L (en) | Composition and process for removing the content of phosphate ions in water | |
JPS54132496A (en) | Production of silica sol | |
AU2002360979A8 (en) | Use of a phosphate mixture for the production of concentrated solutions and brine for the food industry | |
RU2000112013A (en) | COMPOSITION AND METHOD FOR REMOVING PHOSPHATE-ION COMPOSITION FROM WATER | |
YU96992A (en) | PROCEDURE FOR OBTAINING SODIUM WARFARINATES | |
RU2000101790A (en) | METHOD FOR PRODUCING NITRILOTRIMETHYL PHOSPHONIC ACID SOLID TRISODIUM SALT | |
UA42372A (en) | method for the preparation of siliceous mesoporous sorbent | |
UA15284A (en) | Method for preparation of plasticizer of concrete mixtures and cement slurry |