http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H06100307-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6cfc033f059d282fcd915bc8be2ae53f |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B25-238 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B25-238 |
| filingDate | 1992-09-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6412ecd5c162e9171a29ac14d003b90f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_972ac005a82ab4d9a1c47bfd3d22b96c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6d4d0c1e6291c1506eaa3fdde500e538 |
| publicationDate | 1994-04-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H06100307-A |
| titleOfInvention | Purification method of phosphoric acid solution |
| abstract | (57) [Summary] [Purpose] To remove arsenic in phosphoric acid solution. A chelate resin is added to a phosphoric acid solution containing impurities, and then hydrogen sulfide or a soluble sulfide that supplies hydrogen sulfide under acidic conditions is added to precipitate the sulfide, and the sulfide precipitate is separated and removed. [Effect] The arsenic content in the phosphoric acid solution can be removed to 0.05 ppm or less with a small amount of soluble sulfide used. Moreover, since the amount of soluble sulfide used can be reduced, the dehydrosulfurization step, which is a post-step, can be simplified. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6861039-B1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103979510-A |
| priorityDate | 1992-09-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 29.