| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8ebc48155f0cb0b2f3d57b7bb1cbe929 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B25-223
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B7-192
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B7-191
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01F11-46
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01F11-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B25-2208 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B7-19
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01F11-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01F11-46
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B25-223
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B25-22 |
| filingDate |
1993-12-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1995-06-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b6fe16e2ea5739c4c3b2fd74d9de5c66
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2d9a2a98a7ebea03dd137497d0aa6771 |
| publicationDate |
1995-06-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-5427757-A |
| titleOfInvention |
Process for the production of phosphoric acid and hydrogen fluoride from phosphate rock and fluosilicic acid |
| abstract |
Fluosilicic acid is reacted with phosphate rock in order to produce wet process phosphoric acid and calcium fluoride which is later reacted with sulfuric acid to produce hydrogen fluoride and calcium sulfate. The hydrogen fluoride is then stripped from the phosphoric acid and recovered as either anhydrous hydrogen fluoride or concentrated hydrofluoric acid or reacted with aluminum trihydrate to produce aluminum fluoride; with sodium carbonate to produce sodium fluoride/bifluoride; or with ammonia to produce ammonium fluoride/bifluoride. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2023154868-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7101522-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2003161778-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1296887-A4
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104511207-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102674255-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104511208-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2004079310-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104511207-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1296887-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11560310-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5531975-A |
| priorityDate |
1990-12-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |