Patent Profile
| Patent No: | AU2008246949 [Australia] | Application No: | AU20080246949 |
| Title: | A process for the preparation of finely divided precipitated silica | ||
| Issue Date: | 01-11-2012 | File Date: | 23-04-2008 |
| Inventor(s): | Shukla Dipak Balwantrai; Mody Haresh Mahipatlal; Jasra Raksh Vir; Bajaj Hari Chand; Vyas Niraj Rameshchandra; Somani Rajesh Shantilal | ||
| IPC Classification: | C01B33/193 | ||
| Abstract: | The present invention provides a process for the preparation of finely divided precipitated silica. Finely divided precipitated silica is prepared by neutralization of alkali silicate solution, under continuous stirring, at 60 to 9O0 DEG C in presence of alkali metal salt as coagulating agent, in various neutralization steps during which neutralization is interrupted for specific time. Further acidic silica sol, is added until 60 to 80 % of total alkali is neutralized. The reaction mixture is then aged at least for 3 minute under continuous agitation, followed by circulation through centrifugal pump at an appropriate rate. | ||
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: director[at]csmcri[dot]res[dot]in
:91-278- 2569496 Ext. 6000, 6010
:https://www.csmcri.res.in
Industrial Applications
Chemistry, Chemical Processes Polymers [Chemistry, Chemical Processes]