| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e368b207909db783426ff3ca1b37bb43
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b437498cb6ed107e17c2c53e4985e6c8
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/C07F9-09 |
| filingDate |
2009-03-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_982b6acf537c57c2a9bb1c0331ea7eda
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9cea00e3f38688ccf2e17c2e1a633494 |
| publicationDate |
2010-01-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-2009117583-A4 |
| 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 |