http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102921554-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e164bcc4bd54075650f89b687ea057ff http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_cc7236d43434c772dae2d41122d2dfef |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B03D1-00 |
| filingDate | 2012-11-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2014-02-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b164f0d12cb7fc629dc715487025dc08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bd74c536b657530579669c6d511856be http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d5f2b29d0ea5b07e9389296640659156 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6b4e50ee29a159a9a02226c3834f74fd http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_182d753c99e67ba59fe46bff10e6ad42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_39377ca8f9d5c3adb7db35b88f5a2927 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_715adfb345e94c0e183a6f6f5c621171 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_940531895c7e930a2abc9cef40b5c7ad http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_165ae2a54fcd2645b6c8a11101f50d44 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a0a3fee4e4a2ecd89f2c865c24d93451 |
| publicationDate | 2014-02-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-102921554-B |
| titleOfInvention | Step regrinding and stage desulphurization method for high sulfur-copper-zinc ore |
| abstract | The invention provides a step regrinding and stage desulphurization method for high sulfur-copper-zinc ore. Through the method of rough grinding, bulk flotation, tailing discharge, step regrinding of mixed rough concentrate and step desulfuration, roughly grinding the high sulfur-copper-zinc ore and discharging tailings to obtain the mixed rough concentrate, and then performing step ore grinding and step desulfuration again to separate out monomer-dissociated pyrite as a sulfur concentrate product, so as to reduce the quantity of mixed concentrate to be subjected to follow-up regrinding, avoid the problems of large ore grinding quantity and serious argillation of a flotation process caused by direct fine grinding and desulfuration, reduce ore grinding cost, effectively separate iron sulfide from copper-zinc ore, reduce the pyrite content in copper-zinc concentrate and realize high-efficiency enrichment and recovery of pyrite and copper-zinc ore. Besides, over-grinding can be prevented, and the influence on the flotation process caused by sulfur is reduced. According to the method, sulfur in micro-fine particle embedded high sulfur-copper-zinc ore can be separated out step by step in the form of sulfur concentrate; and the quality of the sulfur concentrate is better, the sulfur recovery ratio is high and the desulfuration effect is good. |
| priorityDate | 2012-11-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 46.