FIELD: chemistry.
SUBSTANCE: invention relates to a sol containing silicon dioxide based particles, preparation and use thereof. The sol contains silicon dioxide based particles with axial ratio of at least 10 and specific surface area of at least 600 m2/g. The invention also relates to a sol containing silicon dioxide based particles with axial ratio of at least 10 and S-value approximately not higher than 25%. The invention also relates to a method of making paper, where a sol containing silicon dioxide based particles is used as an agent for increasing dehydration and retention of filler.
EFFECT: disclosed colloidal solutions (soles) have improved working characteristics for dehydration and retention of filler, as well as high stability of surface area with very small surface areas and content of SiO2.
27 cl, 15 tbl, 25 ex
| Title | Year | Author | Number |
|---|---|---|---|
| SILICON DIOXIDE BASED SOLS, THEIR PREPARATION AND USAGE | 2005 |
|
RU2363656C2 |
| SILICON DIOXIDE-BASED SOLS | 2009 |
|
RU2513214C2 |
| SILICON DIOXIDE-BASE SOLS | 2000 |
|
RU2213053C2 |
| SILICA-BASED SOLS | 2000 |
|
RU2235683C2 |
| POLISILICATE MICROGELS | 1998 |
|
RU2201395C2 |
| SILICA-BASED SOLS, THEIR PREPARATION AND APPLICATION | 2005 |
|
RU2363655C2 |
| SILICA-BASED SOLS | 2000 |
|
RU2237014C2 |
| SILICON DIOXIDE SOL AND METHOD OF ITS PRODUCING | 1990 |
|
RU2068809C1 |
| AQUEOUS SILICA-CONTAINING COMPOSITION AND PAPERMAKING PROCESS | 2002 |
|
RU2264492C2 |
| POLYSILICATE MICROGELS AND SILICON DIOXIDE-BASED MATERIALS | 1998 |
|
RU2189351C2 |
