| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_94ac15e3a914a6c5806d14f59838183f |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P10-20 |
| classificationCPCInventive |
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/C22B7-008
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B7-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B3-30 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B3-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B3-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B19-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B7-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B7-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B19-20 |
| filingDate |
2002-05-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2005-04-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f3ea349a3e4f71b5f639527e94508519
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3517df287a71325b21f8f872b05f87d6
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6f48acb98b642936db81e785848cb550 |
| publicationDate |
2005-04-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-6878356-B2 |
| titleOfInvention |
Recovery of zinc from galvanized coatings |
| abstract |
A method for extraction of zinc values from an aqueous alkaline solution of zinc, especially a solution obtained by the stripping of a galvanized coating from a ferrous metal product e.g. steel, or from electric arc furnace dust. The method comprises subjecting the aqueous alkaline solution to solvent extraction using an organic solution of an oxine i.e. an organic extractant containing an 8-hydroxyquinoline group, and separating the organic solution from aqueous alkaline solution. Zinc values are recovered from the organic solution e.g. by stripping with acid and subjecting the resultant aqueous solution containing zinc values for recovery of zinc e.g. to electrowinning or to precipitation of zinc carbonate. The method may be used in the preparation of galvanized steel for recycle to a steel manufacturing plant, with recovery of zinc and for recovery of zinc values from electric arc furnace dust. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2011074948-A1 |
| priorityDate |
2001-05-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |