http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0433860-A2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_3492a7406879265b1f567f37d98dbbaf |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P10-20 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B60-0278 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G56-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-62 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B60-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G21C19-46 |
| filingDate | 1990-12-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3cd6aa7de7a4d81cc8f8744a84755809 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_47c4134d4ad5357f39dc8ce1eb83c82d |
| publicationDate | 1991-06-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0433860-A2 |
| titleOfInvention | Waterglass precipitate recovery process |
| abstract | Sodium silicate (waterglass) is added to a waste process stream containing metal to form a waterglass sludge containing the metal contaminants. The waterglass sludge matrixed with the metal is removed from the stream. Thereafter, a caustic is added to the separated waterglass sludge which dissolves the sodium silicate, leaving a metal solid in suspension. The sodium silicate solution is filtered off and recycled for use in the waterglass precipitation process. The metal solid remains and concentrated acid is added to form a metallic acid solution which is substantially free of silicates. This solution may then be treated by solvent extraction or other means to recover the metal. The process provides substantial metal recovery from the process waste stream and eliminates the need for burial of the waste, thereby eliminating burial costs. |
| priorityDate | 1989-12-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 46.