| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_905550da6364df70927d4b46755a6027
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b8be6a6c990669567cc455d32b00535e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9bfff27f4467d0e7f99caa36dec9052f |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B03D2203-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B03D1-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B03D2201-02 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B03D1-011
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B03D1-001
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B03D1-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B03D1-02 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B03D1-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B03D1-01 |
| filingDate |
2007-04-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2013-01-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_85aaf1d44cc83997484bc0afa381f091
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a44df741fb8d430da7c87f05c4cbaa4f |
| publicationDate |
2013-01-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-8353405-B2 |
| titleOfInvention |
Reverse froth flotation of calcite ore |
| abstract |
The invention relates to a reverse froth flotation process for treating a calcium carbonate ore containing silicates. The process comprises the use of two collectors selected from the group consisting of fatty tri-lower-alkyl quaternary ammonium compounds, fatty di-lower-alkyl benzyl quaternary ammonium compounds, fatty lower-alkyl di-benzyl quaternary ammonium compounds, di-fatty di-lower-alkyl quats, di-fatty lower-alkyl benzyl quats, and fatty bis-imidazoline quats. The use of a combination of different quats was found to result in a synergetic performance of the collectors. |
| priorityDate |
2006-04-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |