http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S59107923-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6bd0cdbc5c67cf4957ed83c89140748e |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G28-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G28-00 |
| filingDate | 1982-12-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ca7d247db128b4acd67381ab33b148d7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b804378f4e5afe12ae56ea1668b3375b |
| publicationDate | 1984-06-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S59107923-A |
| titleOfInvention | Method for separating and recovering arsenious acid from substance containing arsenic sulfide |
| abstract | PURPOSE: To separate and recover efficiently arsenious acid from a substance contg. arsenic sulfide by adding copper sulfate and water to the substance contg. arsenic sulfide to prepare a slurry, heating the slurry to a specified temp. with stirring, cooling it to a specified temp., repeating heating and cooling plural times to grow arsenious acid crystals, and separating the crystals from the slurry. n CONSTITUTION: To a substance contg. arsenic sulfide produced by refining ore as a starting material for nonferrous metals is added a water soluble copper compound such as copper sulfate by one equiv. or more, and water is further added to prepare a slurry having ≥250g/l concn. The slurry is heated to ≥50°C, stirred from ≥30min, and allowed cool at once to 35W40°C. The slurry is heated again to 60W65°C and allowed to stand at 35W40°C. This cycle is heating and cooling is repeated plural times to grow arsenious acid crystals of high purity. The crystals are sieved in a soln. or separated by elutriation. They are efficiently recovered. n COPYRIGHT: (C)1984,JPO&Japio |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-105603466-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110240122-A |
| priorityDate | 1982-12-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 21.