| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8fc0668fd5cbfe23cea7d9bdd5de932a |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2006-80 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B34-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G25-02 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B34-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G25-02 |
| filingDate |
1986-01-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_23cad6d387c19ff1670e9e13fece1dee
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_41aa3b23452540e0ab28bee9fdc0b54c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3b0b5284774df452ffc0d6f475bc4e44 |
| publicationDate |
1988-01-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-0210236-A4 |
| titleOfInvention |
PROCESS FOR PRODUCING VERY PURE ZIRCONIA. |
| abstract |
A process for the production of high-purity zirconia, which comprises the steps of leaching dissociated zircon or other zirconiferous material with concentrated sulphuric acid, and thereafter separating the resulting zirconium-containing product from the unattacked silica, characterized in that water formed during the leaching reaction is continuously removed from the system preferably by using an air-cooled reflux condenser to maintain the temperature in the range from about 300<o>C to the maximum boiling point. |
| priorityDate |
1985-02-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |