AR018870A1 - PROCESS TO PREPARE STABLE COLOIDAL SILICE - Google Patents
PROCESS TO PREPARE STABLE COLOIDAL SILICEInfo
- Publication number
- AR018870A1 AR018870A1 ARP990102850A AR018870A1 AR 018870 A1 AR018870 A1 AR 018870A1 AR P990102850 A ARP990102850 A AR P990102850A AR 018870 A1 AR018870 A1 AR 018870A1
- Authority
- AR
- Argentina
- Prior art keywords
- silica
- colloidal silicas
- colloidal
- coloidal
- silice
- Prior art date
Links
Landscapes
- Silicon Compounds (AREA)
Abstract
Se describen sílices coloidales acuosas estables que tienen un área superficial mayor de 700 m2/g y valores de S de 20-50. Estas sílices coloidales norequieren tratamiento con agentes de tratamiento superficial tales como aluminio para obtener laest abilidad. Estos acuasoles de sílice coloidal pueden serproducidos y almacenados a concentraciones mayores de 7% en peso de solidos SiO2 y aun tan altos como 15% de solidos en peso o mayores y permanecen estables atemperatura ambiente durante porlo m enos 30 días en comparacion con los acuasoles de sílice conocidos de la técnica. Estos soles de sílice coloidal demuestranun desempeno ventajosamente mejorado con respecto a los soles de sílice conocidos de la técnica en aplicaciones tales comoel dr enaje y retencion en procesosde fabricacion de papel. También, se describen procesos para fabricar sílices coloidales acuosas de la presente y el uso de tales sílices coloidales enprocesos de fabricacion de papel.Stable aqueous colloidal silicas having a surface area greater than 700 m2 / g and S values of 20-50 are described. These colloidal silicas do not require treatment with surface treatment agents such as aluminum to obtain stability. These colloidal silica aquasols can be produced and stored at concentrations greater than 7% by weight of SiO2 solids and still as high as 15% solids by weight or greater and remain stable at room temperature for at least 30 days compared to the aquasols of silica known in the art. These colloidal silica soles demonstrate an advantageously improved performance with respect to the silica soles known in the art in applications such as disposal and retention in papermaking processes. Also, processes for manufacturing aqueous colloidal silicas are described herein and the use of such colloidal silicas in papermaking processes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ARP990102850 AR018870A1 (en) | 1999-06-15 | 1999-06-15 | PROCESS TO PREPARE STABLE COLOIDAL SILICE |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ARP990102850 AR018870A1 (en) | 1999-06-15 | 1999-06-15 | PROCESS TO PREPARE STABLE COLOIDAL SILICE |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AR018870A1 true AR018870A1 (en) | 2001-12-12 |
Family
ID=45606558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ARP990102850 AR018870A1 (en) | 1999-06-15 | 1999-06-15 | PROCESS TO PREPARE STABLE COLOIDAL SILICE |
Country Status (1)
| Country | Link |
|---|---|
| AR (1) | AR018870A1 (en) |
-
1999
- 1999-06-15 AR ARP990102850 patent/AR018870A1/en active IP Right Grant
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG | Grant; registration |