| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_86f319584945ab9b0d5605ed3c7e39a2
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_efdd47a40f1636bd3351e16a99ed1cd0
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_42de44fc619addf0695de7bbb3a45b2c |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N33-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N33-2022 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N33-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N31-00 |
| filingDate |
1994-01-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2003-09-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7bd4a46f36860c14133478495f80fe36
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3f45b2434710ec1d729090c7b86f20bd
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b700bbe3298b8a1df5d2174e357eaa63 |
| publicationDate |
2003-09-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CA-2112875-C |
| titleOfInvention |
Analytical method for nonmetallic contaminants in silicon |
| abstract |
The present invention is a method for analyzing silicon for nonmetallic contaminants. The method comprises: (A) forming an alloy comprising silicon and a metal which promotes separation of nonmetallic contaminants present in the alloy, (B) separating the nonmetallic contaminants from the alloy, and (C) analyzing the separated nonmetallic contaminants for chemical content. The present invention is particularly useful for analyzing metallurgical grade silicon intended for use in the direct process for the production of organohalosilanes for the presence of oxides and carbides of calcium, aluminum and silicon. |
| priorityDate |
1993-01-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |