http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-20040102870-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7d47590d5002b5f801000462872ae881 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P10-20 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B3-16 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B3-16 |
| filingDate | 2003-05-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3c6bd9b04e69c280ad077de012d90dde http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_040e41a77fc2a97d0dd4c7621963ffb7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_da3fc00da8be78348c36abdf311ee72b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ac6bd2826dced4f22e8085138fd092a5 |
| publicationDate | 2004-12-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-20040102870-A |
| titleOfInvention | Process for preparing copper powder from acid waste etchent |
| abstract | The present invention relates to a method for recovering copper from printed circuit board cleaning waste liquid using the wet method. The present invention is a method of recovering a high-purity, fine particles of copper powder from an acidic copper chloride waste liquid, more specifically, by reducing the reducing sugar in the acidic copper chloride waste liquid and then reacted with an aqueous alkali solution, the precipitated slurry is filtered, washed and hydrazine is used. To produce a copper powder. According to the present invention, high-purity, fine particles of copper powder can be produced in an economical manner from acidic copper chloride waste liquid which is industrial waste. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-101276595-B1 |
| priorityDate | 2003-05-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 49.