| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1801ff2e9f0bdc2c6f3d5faf514a6034 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2006-80 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B33-023
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B33-025 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B3-06 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B33-023 |
| filingDate |
2010-08-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d17417c72e10e5bdb1591b0dc6007900
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ab8f6174f595aea62ca7413e0a26df9e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_10f73f30c894c6dfed9d3a909287e1ff
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_de0acf06304698e1a17b26618014c0bc
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1ad40c55e39831c7c5fbd5fc36291ea3 |
| publicationDate |
2011-03-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CA-2772307-A1 |
| titleOfInvention |
Production of high purity silicon from amorphous silica |
| abstract |
A process to the production of silicon from amorphous silica is disclosed. The amorphous silica is formed from a material rich in silica, especially rice husk ash or silica fume. The process comprises subjecting the amorphous silica to leaching with a lixiviant of aqueous mineral acid, especially hydrochloric acid. Preferably, material rich in silica is roasted at a temperature of not more than 850°C, subjected to leaching and then subjected to a second roasting at a temperature of less than 750°C. The process provides for the production of high purity silicon, especially to the production of solar grade silicon (SoG-Si). |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113178564-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113178564-B |
| priorityDate |
2009-08-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |