http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3687432-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2e2dfbc0280474a4166e776d2f038656 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B15-0006 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B15-0052 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B15-0019 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B15-00 |
| filingDate | 1971-04-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1972-08-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_563475a2b23ca531241b63aafd9f757b |
| publicationDate | 1972-08-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-3687432-A |
| titleOfInvention | Recovery of copper |
| abstract | Low grade, finely disseminated copper oxide ores are beneficiated to enhance the winning of metallic copper therefrom by crushing and sieving the ore to particles of suitable size, preheating the ore particles, reacting a chlorine-donating gas with the ore particles at a controlled elevated temperature to form copper chloride (preferably cuprous chloride) therein and maintain it substantially in molten liquid form, and then reducing the molten liquid form, and then reducing the molten liquid copper chloride at the elevated temperature to metallic copper with a reducing gas. Further benefits are derived by carrying out the preheating step in a reducing or oxidizing atmosphere, and by passing an oxidizing gas through the ore particles after chlorination and before reduction to metallic copper. Apparatus is also described for carrying out the foregoing processes continuously. |
| priorityDate | 1971-04-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 36.