http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1396928-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5d9f3ca41550d315642580237250c5b0 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C2001-0471 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P10-20 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B3-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C11-24 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G5-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B11-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C11-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B3-18 |
| filingDate | 1972-08-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1975-06-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1396928-A |
| titleOfInvention | Recovery of silver from waste materials |
| abstract | 1396928 Silver compound recovery EASTMAN KODAK CO 31 Aug 1972 [1 Sept 1971] 40347/72 Heading C1A [Also in Divisions C3 and C7] Silver compounds are recovered from an aqueous gelatinous liquid containing emulsified Ag compounds, e.g. wash water from photographic emulsion manufacture, by mixing the liquid with an amino-acid forming enzyme which reacts with the gelatine to produce a peptide. The pH is adjusted to 2À5-4À2, preferably 3À5, to effect precipitation of the peptide and the associated Ag compounds. The precipitate may be passed to an incinerator where Ag is recovered as a silver-bearing ash. Suitable enzymes include trypsin, pepsin, pancreatin and ficin. The liquid is heated to 48-52‹ C. during the reaction of the enzyme. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2618874-C1 |
| priorityDate | 1971-09-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 56.