| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e899199238cd97bdebfa84869ece733b |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B25-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B25-405
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B25-28
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B25-303 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B25-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B25-28
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B25-40
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B25-26 |
| filingDate |
1976-08-05^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1980-02-19^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_973df66a4b595111d2a4f14980ac3688 |
| publicationDate |
1980-02-19^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CA-1071835-A |
| titleOfInvention |
Removal of fluorine from wet process phosphoric acid by calcium phosphate |
| abstract |
Abstract of the Disclosure A method for removing fluoride ions form phosphoric acid by neutralizing said acid to a pH between about 5 and about 9, contacting the neutral salt solution thereby formed with an insoluble alkaline earth metal phosphate salt, and lowering the pH to convert the solution back to a purified acid. |
| priorityDate |
1975-08-14^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |