| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9e5302e08e56037ff7bc5c9b6fcc29f9 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B03D2201-005
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B03D2203-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B03D2201-02 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B03D1-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B03D1-008
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B03D1-002 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B03D1-002
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B03D1-06 |
| filingDate |
1976-02-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1977-10-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6ddecabc6865d54125a782ef69a5bcdb
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_daa2bef92fa47297d9a47a287169ad00 |
| publicationDate |
1977-10-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4054442-A |
| titleOfInvention |
Method for recovering scheelite from tungsten ores by flotation |
| abstract |
A flotation process for recovering scheelite from low-grade tungsten ores containing calcium-bearing minerals other than scheelite. Calcium oxide (lime) is added to an ore pulp together with a carbonate alkalizing agent, dispersant and anionic collector. The pulp is subsequently subjected to flotation and the scheelite recovered. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113399124-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-101912809-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4366050-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107670846-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2010069119-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4488959-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-101428252-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113102111-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113102111-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112474058-A |
| priorityDate |
1976-02-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |