| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_46ffc67cd29dd51dbd0bc0e335dd3994 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G39-00 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B25-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G41-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B25-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G41-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G39-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B35-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B33-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D11-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J21-06 |
| filingDate |
1999-11-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2002-09-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ba1b714303fd6421b25035f79d41723f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a61744ebf0a62674e3a4630edf0e4a54
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9c4ad9e7ee09a9819fc3fd6e91bee061
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_25c9cf11fbe282eb183d08f04f2e8680 |
| publicationDate |
2002-09-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-1140703-B1 |
| titleOfInvention |
Synthesis of heteropolyacids |
| abstract |
This invention relates to a process for purifying a heteropolyacid which comprises: subjecting an aqueous solution comprising (i) the heteropolyacid and (ii) salt impurities to at least one liquid/liquid extraction step with an organic solvent, characterized in that the organic solvent comprises a dihydrocarbyl ether having at least 5 carbon atoms. |
| priorityDate |
1998-12-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |