| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_44d2fb38aace200fa0425f604a6542c5 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01F11-38 |
| filingDate |
1991-01-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1995-04-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7fc43642c79614e822334787204c492d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d9feb87a7382a274fc46ba054ef16540
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b4ec577d299b6aa0cb93966bd7181605
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7005822dc74771451ebc5f1f99d7e093
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_00139a3a8c40948d9b9aff7471c744bb
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_082a1391e838a1d43ce34434b0cfa496
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4cb8c02fde173b3041d5ccda2a074845
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ebbbf25e9e37a8fb1cd453e6b4dc92ff
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_71a602032f178209e68332aa9bdde0b0 |
| publicationDate |
1995-04-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
RU-2032622-C1 |
| titleOfInvention |
Method for preparing strontium-containing concentrate |
| abstract |
FIELD: production of strontium compounds. SUBSTANCE: apatite is treated by nitric acid. Thus prepared nitrate extract is separated and condensed. Condensed portion of nitrate-phosphate solution is separated by decantation. The process is followed by filtration and by cooling to isolate tetrahydrate of calcium nitrate as crystals. Thus prepared crystals are washed by nitric acid and recycled for processing apatite. Condensed portion of nitrate extract is diluted by nitric acid. Thus obtained mixture is filtered to isolate desired product. EFFECT: improves efficiency of the method. 1 tbl |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2614962-C1 |
| priorityDate |
1991-01-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |