http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2430885-C1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9fb7d701f9e3d9cd16539dafcc2901c9 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B3-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01F17-224 |
| filingDate | 2010-03-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2011-10-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f240e8aba823ecbc0deff2f969921fdd http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3412375fbc35d94711211e0ce61f81f0 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9c31808dfceb31a46b5b4a45f818f738 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0a9987efa64108e9a24a97572b162fec |
| publicationDate | 2011-10-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RU-2430885-C1 |
| titleOfInvention | Method of extracting lanthanides from apatite concentrate |
| abstract | FIELD: chemistry. n SUBSTANCE: apatite concentrate is decomposed with nitric acid to obtain nitrate-phosphate solution. Calcium nitrate and sodium fluosilicate are successively extracted from the solution. The solution is neutralised with ammonia to form a precipitate of phosphates of the main part of lanthanides and a mother solution with the residual part of lanthanides. The mother solution is treated by bringing it into contact with an amorphous titanium phosphate-based sorbent at pH of the solution equal to 1.4-1.7 with concentration of the residual part of lanthanides in the sorbent. The lanthanide-rich sorbent is separated, washed with water and treated with 0.5-3.0 M mineral acid with desorption of lanthanides. The amorphous sorbent used is one of the sorbents with the following composition: TiOHPO 4 ·nH 2 O, (Ti 1-x Zr x )OHPO 4 ·nH 2 O, TiONH 4 PO 4 ·nH 2 O, (Ti 1-x Zr x )ONH 4 PO 4 ·nH 2 O, where n≥1, x=0.05-0.5. n EFFECT: high degree of extraction of lanthanides from apatite concentrate. n 3 cl, 6 ex, 6 tbl |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2733776-C1 |
| priorityDate | 2010-03-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 42.