http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11472710-B2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_ff906b92214e8321c3067726032d4e47 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2006-12 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B33-193 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B33-193 |
| filingDate | 2019-03-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-10-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c952f735315f7f47171b556682bbc89b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_28e20bcc986e7fa243c2a17117b05abe http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_66cf81e7231e8aaf41c9e7471bdf6cdb |
| publicationDate | 2022-10-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-11472710-B2 |
| titleOfInvention | Process for preparing precipitated silica |
| abstract | A process for preparing precipitated silica, is disclosed. The process includes preparing an aqueous solution of sodium silicate having a pH in a range of 10.6 to 10.8, simultaneously adding to said aqueous solution of sodium silicate, a sodium silicate solution, water and an acid in at least two phases to obtain a reaction mixture, wherein in an initial phase the sodium silicate solution, the water and the acid is added till the sodium ion concentration of the reaction mixture is in range of 0.13 normal to 0.57 normal and in a final phase the sodium silicate solution, the water and the acid is added till the sodium ion concentration of the reaction mixture is in a range of 0.3 to 0.9 normal; acidifying the reaction mixture with the acid to a pH in a range of 3 to 4.5, aging the reaction mixture to obtain precipitated silica and recovering the precipitated silica from the reaction mixture. |
| priorityDate | 2018-03-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 59.