http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S59169934-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b1784eb7fc902d292db30e120ec712d5 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G28-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G28-02 |
| filingDate | 1983-03-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8de3d0f2a61c353b67791bb81644b4dd http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e1dadbfdacd21ff2489cbcd39f49176c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_23f08cb50118ba20e6cc617515dd6652 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e2efde7225fee2a505ea91f4d6569231 |
| publicationDate | 1984-09-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S59169934-A |
| titleOfInvention | Production of arsenous acid |
| abstract | PURPOSE: To enable the crystallization of high-quality arsenous acid from various copper sources, by subjecting the electrolyte produced by the electrolytic refining of crude copper to the diffusion dialysis, leaching a copper source with the obtained liquid, adding arsenic sulfide to separate copper, and introducing SO 2 into the residual liquid. n CONSTITUTION: Copper sulfate is crystallized from the electrolytic solution produced by the electrolytic refining of copper, and is separated from the liquid by filtration. The filtrate is subjected to the diffusion dialysis to recover sulfuric acid, and the dialized liquid is used for leaching various copper sources. An aqueous solution of hydrogen peroxide and arsenic sulfide are added and mixed to the leached liquid, and the copper sulfide produced by the copper-removing reaction is separated and removed from the liquid. SO 2 gas is introduced into the residual liquid to crystallize the arsenic in the liquid as arsenous acid. The arsenous acid obtained by this process has high purity and low Sb content, and is suitable as a material for the production of metallic arsenic. n COPYRIGHT: (C)1984,JPO&Japio |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5449503-A |
| priorityDate | 1983-03-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 30.