http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4587013-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_14effe3850d2129f863b969dac4f1db8 |
| classificationCPCAdditional | 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/B03D1-014 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B03D1-014 |
| filingDate | 1984-11-28^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1986-05-06^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9bbad150294eb495b3eedb9e47742758 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dc233dd915c157b95185f6b0c8d2f172 |
| publicationDate | 1986-05-06^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-4587013-A |
| titleOfInvention | Monothiophosphinates as acid, neutral, or mildly alkaline circuit sulfide collectors and process for using same |
| abstract | A process for the beneficiation of base metal sulfide mineral values from base metal sulfide ores with selective rejection of gangue sulfide minerals at pH values below about 10.0 by froth flotation is disclosed. The process includes the use of a new and improved collector which at pH values below about 10.0 exhibits unexpectedly high collector activity for base metal sulfide minerals of copper, nickel, molybdenum, cobalt and zinc and selectively rejects gangue sulfide minerals such as pyrite and pyrrhotite. The collector for base metal sulfide mineral values for use in the process comprises at least one diorganomonothiophosphinate compound having the formula: <IMAGE> wherein R1 and R2 are each, independently, selected from saturated and unsaturated hydrocarbyl radicals, alkyl polyether radicals, and aromatic radicals, and such radicals, optionally and independently, substituted with polar groups selected from halogen, nitrile and nitro groups; or wherein R1 and R2 together form a heterocyclic ring having the formula: <IMAGE> wherein R3, R4, R5, R6, R7 and R8 are each, independently, selected from hydrogen and C1 to C12 alkyl groups; and X is selected from hydrogen, an alkali or alkaline earth metal and NH4 groups. The collectors and process provide excellent metallurgical recoveries of copper sulfide mineral values of high grade at a substantial reduction in lime consumption and reagents costs associated with prior art flotation separation methods. An improved process for Cu-Mo separation is also disclosed. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2020147619-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-101786049-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5028403-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8123042-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11612897-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10603676-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-8700088-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9119571-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9813142-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11654443-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8534464-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0340391-A2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7150357-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0340391-A3 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2004200760-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2008308467-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2011290705-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5929408-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104888969-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2016114336-A1 |
| priorityDate | 1984-11-28^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
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