http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DD-299273-A5
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_eab56e4fe8837840887f41af83e328ee |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-58 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G5-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D11-00 |
| filingDate | 1990-10-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ea2314967563732d6f61ca0e64176493 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a50f813b255216d0c003793848ae44f5 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f3f7b10e72bd74ea434fc64429127d27 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0970b1838f4404b3504bb21e8af15de1 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8e7e207e602c494bf0ed5ff011c4e495 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_aaa47133109ea0edea1c54f8f7beb70f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_618e27d8ac632810f522fdd85040820b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_49da9cc6035f78328de8a9aa7240da62 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_433c3c6effc5e9cfa01bd099f5515eed |
| publicationDate | 1992-04-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | DD-299273-A5 |
| titleOfInvention | METHOD OF EXTRACTION OF SILVER FROM WAESSRESS SOLUTIONS |
| abstract | The invention relates to the field of chemistry and has the goal of increasing the selectivity and cost-effectiveness in the extraction of silver from aqueous solutions. It is the object of the invention to provide an extractant that allows an extraction of silver from aqueous solutions of different concentration and p H ranges with low extraction agent and solvent losses. According to the invention, the object is achieved by using the extractant * of the general formula where R 1 is aryl, optionally subst. and R2H, acyl, aryl, alkyl, SO2aryl, SO2alkyl, COAmino, optionally subst. are dissolved in a water-immiscible organic solvent. Possible fields of application of the invention are separation, concentration and subsequent recovery of the silver from aqueous process or waste solutions, in particular from acidic solutions which are diluted with regard to the metal content and which may also contain non-ferrous heavy metals, iron metals and other heavy metals. Formula {liquid-liquid extraction; Precious metal extraction; Extraction means; complexing; chelating agents; *} |
| priorityDate | 1990-10-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 28.