http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7374740-B2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e8c30423fd3f170bb2333150798f208e |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B25-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B25-30 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B25-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B25-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B25-28 |
| filingDate | 2005-03-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2008-05-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e0fefc01355c64a0e5dd11d10617e37b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3fbc0e46b5f6d05c8e386e66e347a6d3 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_18bec404aca2b7ce0d7b98be1addc428 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_45d7a6205317665cd608966f969cd23c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3c88d045d3d1e7ea4243af56c626270e |
| publicationDate | 2008-05-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-7374740-B2 |
| titleOfInvention | Process for producing high purity phosphates |
| abstract | Phosphate rock is reacted with phosphoric acid to produce monobasic calcium phosphate. Monobasic calcium phosphate is reacted with ammonium carbonate to produce ammonium phosphate. Dibasic calcium phosphate is also produced as a by-product when monobasic calcium phosphate reacting with ammonium carbonate. The dibasic calcium phosphate is reacted with sulfuric acid to produce phosphoric acid. The phosphoric acid is used to react with phosphate rock. Ammonium sulfate or ammonium hydroxide may be used instead of ammonium carbonate. Phosphate other than ammonium phosphate can be produced if calcium phosphate is reacted with x-y to produce x-phosphate, where x is lithium, sodium, ammonium or potassium and y is carbonate, bicarbonate hydroxide or sulfate. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2462419-C1 |
| priorityDate | 2005-03-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 100.