| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c34329c6b6fc94d3af3cf45bb6be1b74 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P10-20 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C25C1-12 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B3-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B3-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B15-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C25C1-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B34-32 |
| filingDate |
1972-02-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1973-05-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_37f8d5cdfc2e79e80bea35f2eaf23720
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3ea1cbf520f51ae7d78e3defa54c984f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_859cc7afbf89c3c318007bab703ef010 |
| publicationDate |
1973-05-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-3730860-A |
| titleOfInvention |
Electrolytic recovery of copper from oxidizable cupriferous material |
| abstract |
OXIDIZABLE IRON-BEARING CUPRIFEOUS MATERIAL IS LEACHED WITH A SULFURIC ACID SOLUTION CONTAINING HEXAVALENT CHROMIUM IONS, E.G. CHROMIC ACID OR A DICHROMATE. THE LEACH SOLUTION AFTER SEPARATION FROM UNDISSOLVED RESIDUE IS HYDROLYZED BY HEATING UNDER PRESSURE AT A TEMPERATURE ABOVE 130*C. TO PRECIPITATE IRON AS A BASIC SULFATE SALT. THE IRON PRECIPITATE IS SEPARATED, AND THE RESIDUAL SOLUTION IS SUBJECTED TO A FIRST BIFLUID ELECTOLYSIS TO ELECTROWIN COPPER AND TO REGENERATE SULFURIC ACID AND REOXIDIZE TRIVALENT CHROMIUM IONS TO HEXAVALENT. FORM. ANOLYTE DISCHARGED FROM THE FIRST ELECTROLYSIS IS SUBJECTED AS ANOLYTE IN A SECOND BIFLUID ELECTROLYSIS TO OXIDIZE REMAINING TRIVALENT CHROMIUM TO HEXAVALENT FORM, AND THEREAFTER THE SOLUTION IS RECYCLED TO THE LEACHING OPERATION. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107385218-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S5328851-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S5248576-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103993172-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103993172-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112095004-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3958983-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S5020922-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S5013217-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-2362935-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4076605-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3929599-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107385218-B |
| priorityDate |
1972-02-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |