| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f7a85d730847339e0c2e621c6c6fd96e |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-091 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B25-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-11
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-09
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D3-14 |
| filingDate |
2009-03-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_425c84271de31d9f328eea0d098135af
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_83e73e2d1c558d7d8029f4051f985bc0 |
| publicationDate |
2009-11-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
TW-200944535-A |
| titleOfInvention |
Purification and preparation of phosphorus-containing compounds |
| abstract |
A phosphorus-containing compound is treated with at least one metal compound prior to fractional distillation to collect a purified fraction containing about 20 ppb or less arsenic. The purified phosphorus-containing compounds are useful for preparing electronic materials for electronic semiconductor manufacturing. Suitable metal compounds include salts, oxides and/or sulfides of iron, copper, nickel, cobalt, or zinc. |
| priorityDate |
2008-03-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |