| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_072bf4c5ceebda7074bbbac016d06dcd
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5045715c880faebd670220c36d8a4b26 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P10-20 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B19-28
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B19-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B15-0078
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B23-0453
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B23-0446
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B19-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B19-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G3-14 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B15-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B19-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B19-28
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G3-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C25B3-29 |
| filingDate |
1991-05-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9b6023dd3040996d2a2ad854424d0b6b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6d71f3dcc8ebbcfb5c2a94b91cb0d115 |
| publicationDate |
1991-12-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CA-2043430-A1 |
| titleOfInvention |
Process and removal of zinc and nickel from copper ammine sulfate solutions |
| abstract |
PROCESS FOR THE REMOVAL OF ZINC AND NICKEL FROM COPPER AMMINE SULFATE SOLUTIONS A method for the recovery of copper from coppercontaining materials, for example, scrap, ores or dust. An aqueous cupric tetrammine sulfate lixiviant is contacted with the copper-containing material to produce a leachate containing cuprous, nickel, and zinc ions, ammonium sulfate and free ammonia. Copper can be recovered from the leachate by electrolysis. Nickel and zinc can be precipitated from the resulting spent electrolyte by oxidizing substantially all of the cuprous ions in the copper ammine sulfate solution to cupric ions and lowering the pH of the solution to a range from about pH 7.5 to about pH 8.0 in order to form a precipitate. Alternatively, copper sulfate can be added to the cupric ammine sulfate-containing solution in order to form nickel and/or zinc containing precipitate. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-106399698-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104962738-A |
| priorityDate |
1990-05-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |