| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0d82e2aba453da42eb31d199d365f2eb |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P10-20 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B19-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B3-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B19-26 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B19-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B3-18 |
| filingDate |
2002-07-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2009-07-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_793e53ec9c1df35e35556d3b75f95152
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1a38a45bfd32180c148cac26242f6ce3
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7dd46163fc23f2604ef6b8f361963fd2
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ff25ea876093750ecfce4719814ff491
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_108e5a97a5e4b845150733f45930848d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f2fcb20266514587f9a02b5549f9a3c7 |
| publicationDate |
2009-07-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CA-2453364-C |
| titleOfInvention |
Heap bioleaching process for the extraction of zinc |
| abstract |
A method of extracting zinc from a sulphidic ore is provided which comprises bioleaching the ore in a heap with acidophilic microorganisms to produce a pregnant leach solution which is recovered from the bottom of the heap. An integrated process which comprises subjecting the pregnant leach solution to neutralization and solvent extraction to produce a concentrated zinc solution is also provided. Zinc may be recovered from the concentrated solution by means of electrowinning, either in the absence or presence of manganese. Alternatively zinc may be recovered in the form of a zinc compound. |
| priorityDate |
2001-07-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |