| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_4be8d1eb45e7fb62479f26a6fa0b3939 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B33-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B33-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B33-141
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B33-1525
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01F11-22 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B33-152
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B33-141
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B33-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B33-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01F11-22 |
| filingDate |
1975-02-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate |
1977-11-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
IL-46623-A |
| titleOfInvention |
Method for producing calcium fluoride |
| abstract |
Disclosed is a process for the preparation of calcium fluoride comprising reacting hexafluoro silicic acid with calcium carbonate in the presence of sulfate or aluminum ions within a pH range of between about 2 and 6 and separating the calcium fluoride precipitate from the resulting aqueous silica sol.n[US4031193A] |
| priorityDate |
1974-02-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |