| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9979c7b9af84b8e936496d8164d4a723
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_3c2a17efb4f89cd5c3fa0a310928ef35
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_aa43b66ea446fd022fd44b2c3ea1c677
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_ee4ba30dcac977a4ea1a7fb9bfd026f8 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B33-10705
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B17-901
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B17-907 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B33-107
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D53-34
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B17-90 |
| filingDate |
1990-11-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2000-08-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_20593c188fd976e9987bc973cf5bd04c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_69d496898bbefc983bab00471afbb3cf
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0ac02bd8327e0a332a9615424c11db43
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a9e9ff90382ec7b8e4f3c60a8e8cc865 |
| publicationDate |
2000-08-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CA-2031229-C |
| titleOfInvention |
Fluoride removal from sulphuric acid |
| abstract |
A process for the reduction in fluoride concentration in a fluoride-contaminated sulphuric acid which process comprises treating said sulphuric acid with a silicon compound to produce silicon tetrafluoride, and removing said silicon tetrafluoride to produce a purer sulphuric acid having a substantially reduced fluoride concentration. The process is of particular use for the removal of fluoride from waste sulphuric acid in the copper smelting industry to meet environmental concerns. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104017996-A |
| priorityDate |
1990-11-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |