| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_87a353b8801a76279578a3661a4fee8d |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B03D1-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P10-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B03D1-1406 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B11-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B03D1-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B03D1-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B11-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B03D1-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B1-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G7-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G1-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B03D1-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C1-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B03D1-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B11-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B1-00 |
| filingDate |
1997-10-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2002-08-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_44ebf3577202a235bb92852f9decfcd6
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b746edff1c4831c58293d5ee9cb21461 |
| publicationDate |
2002-08-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CA-2264865-C |
| titleOfInvention |
A method for processing refractory auriferous sulfide ores involving preparation of a sulfide concentrate |
| abstract |
A method is disclosed for processing a gold-bearing refractory sulfide ore (102) by main- taining the ore in a substantially oxygen free en- vironment, preferably beginning with comminu- tion (104) of the ore and ending after a desired final concentrate, enriched in sulfide minerals, is obtained by flotation (112). In one embodiment, nitrogen gas (110) is used to prevent contact be- tween the ore and air during comminution of the ore (108) and during flotation operations (114). This invention recognizes that gold in refractory sulfide ores primarily occurs in refractory aurifer- ous sulfides, which arc typically the most difficult sulfide species in the ores to float. By reducing the exposure of those refractory auriferous sulfides to oxygen gas during flotation, flotation recovery is enhanced in the form of a flotation concentrate (116). A flotation tail (118) is also obtained from the process. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8262768-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8262770-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7922788-B2 |
| priorityDate |
1996-10-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |