http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2171227-C1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6e3bb20497c5c93577d728f283b31ea4 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01F11-18 |
| filingDate | 2000-02-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2001-07-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b83666f6c4d19cd90720e2cba3b97e3e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cad2eb4243206959ba1865f171553d30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cd46bd09732743bd7fe800f08122c1d7 |
| publicationDate | 2001-07-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RU-2171227-C1 |
| titleOfInvention | Chemically precipitated chalk production process |
| abstract | FIELD: industrial inorganic synthesis. SUBSTANCE: invention is designed to be applied at enterprises where calcium-containing solutions and other soda production wastes are available. Calcium-containing solution (distiller fluid) is fried from suspended particles and treated with soda solution with concentration 120 g/cu. dm (as sodium oxide) at 20-60 C observing 2 to 20% stoichiometric excess of calcium. Precipitate is separated, washed, and dried. Invention increases whiteness of chalk to 95%, reduces free alkalinity to 0.01% (as calcium oxide), and gives bulk density as low as 0.18-0.20 g/cu.cm. EFFECT: improved characteristics of product. 3 cl, 1 tbl, 4 ex |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2709872-C1 |
| priorityDate | 2000-02-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 30.