http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0053409-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a3ae63500ac7f6553fdf267a475ed01c |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B60-0282 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B25-461 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B25-463 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G43-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B25-222 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B25-238 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B25-46 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B60-02 |
| filingDate | 1981-10-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5b40acedbe1518d46603a071a1259f2a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f4cb56afd5b8c33284acfad30d62e250 |
| publicationDate | 1982-06-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0053409-A1 |
| titleOfInvention | Process for the recovery of a uranium-containing concentrate and phosphoric acid |
| abstract | A uranium containing concentrate and phosphoric acid are obtained by digesting phosphate rock with H2SO4 and treating the H3PO4-solution - remaining after removal of calciumsulphate -, if so desired after evaporation, with a reducing agent, an organic dispersant and an inorganic F-compound, whereafter the resulting uraniumcontaining precipitate is separated off and phosphoric acid is recovered from the remaining mixture. As inorganic F-compound use is made of NH2F, which is prepared in situ by absorbing in water the gases escaping during the digestion and the optional evaporation, converting the H2SiF6-solution formed with NH3 to and SiO2-containing NH4F solution, separing off the SiO2 and applying the resulting NH4F-solution, for the uranium precipitation. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-2531698-A2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104906920-A |
| priorityDate | 1980-12-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 51.