http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2086507-C1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_44d2fb38aace200fa0425f604a6542c5 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01F17-10 |
| filingDate | 1992-05-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1997-08-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ebbbf25e9e37a8fb1cd453e6b4dc92ff http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7005822dc74771451ebc5f1f99d7e093 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b4ec577d299b6aa0cb93966bd7181605 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d9feb87a7382a274fc46ba054ef16540 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_71a602032f178209e68332aa9bdde0b0 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4cb8c02fde173b3041d5ccda2a074845 |
| publicationDate | 1997-08-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RU-2086507-C1 |
| titleOfInvention | Method of processing phosphate rare-earth concentrate isolated at neutralization of nitrogen-phosphate solution obtained after apatite opening with nitric acid |
| abstract | FIELD: chemical technology of rare-earth elements, fertilizers. SUBSTANCE: apatite is treated with nitric acid, nitrogen-phosphate solution is neutralized, phosphate rare-earth concentrate is dissolved in nitric acid and insoluble residue is separated. Residue is washed with nitrogen-phosphate solution after isolation of part of calcium nitrate tetrahydrate from it. Solution consumption at washing is 100-710 mas. p. per 1 mas. p. insoluble residue. After washing solution is fed to neutralization of nitrogen-phosphate solution. Method is used for utilization of rare-earth elements at apatite processing to complex fertilizers. EFFECT: improved method of processing. 3 cl, 1 tbl |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2484018-C2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2532773-C1 |
| priorityDate | 1992-05-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 32.