http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2593861-C1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b473c9bf06d5cb0f661a9eebad260eb3 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B33-18 |
| filingDate | 2015-04-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2016-08-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f6b641ca4354f8c452055e323fec143c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2b1799277d7083e1ba1e1b7654d2a5cf http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_31d33988c7aa7ce18fe9e63daafea6ca http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_795d34f24b70509e21ff6c3316bfa6cd http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_aef39f3df3bacff24101b7bb441db6be http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_583b4270785963240e9168e394ecae47 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b9c13eb18ed16490f35f8614fa6326ce |
| publicationDate | 2016-08-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RU-2593861-C1 |
| titleOfInvention | Method of producing finely dispersed silicon dioxide |
| abstract | FIELD: technological processes. n SUBSTANCE: invention relates to methods of producing finely dispersed silicon dioxide. Method of producing silicon dioxide is carried out by leaching of siliceous material while heating with subsequent filtering to obtain a solution of sodium or potassium liquid glass and insoluble part. Solution of sodium or potassium liquid glass is mixed with a solution of a precipitation agent. Precipitation agent used is aqueous solution of magnesium nitrate. Magnesium silicate precipitate formed is separated by filtration from solution of sodium nitrate without flushing and treated with solution of nitric acid to produce silicon dioxide and magnesium nitrate solution. Silicon dioxide is separated by filtration, washed and dried. Technical result is efficient extraction of silica-containing raw materials of silicon dioxide containing SiO 2 - 98.341÷99.859 %. Obtained silicon dioxide has specific surface area 680.5÷731.5 m 2 /g. n EFFECT: efficient extraction of silicon dioxide. n 6 cl, 1 dwg, 1 tbl, 5 ex |
| priorityDate | 2015-04-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 48.