| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_cd647dcb0afbbc35e27402d6df649ab9 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P10-20 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B3-42
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G41-003
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G28-001 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G41-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G28-00 |
| filingDate |
1982-07-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1983-10-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_03cea8e7661798d8fb7e6061a5ba2974
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fcc36261bbedfad09412e6a7baec92d0
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3c6728391737cfa37931cf523a0e419f |
| publicationDate |
1983-10-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4409189-A |
| titleOfInvention |
Recovery of tungsten from brines |
| abstract |
Tungsten is recovered from alkaline brines by: (1) initial loading of metal values on an 8-hydroxyquinoline-resorcinol-formaldehyde resin, (2) selective desorption of boron, arsenic and sulfur from the resin by means of an NH 4 Cl--NH 4 OH solution having a pH of about 7.5 to 9.5, and (3) desorption of tungsten from the resin by means of water or an alkaline solution. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/BE-1004149-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9504835-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5107507-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5316683-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0371832-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9117274-A1 |
| priorityDate |
1982-07-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |