http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9011270-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_97b77073cf9139a67812934cf5f250c1 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D15-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-47 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D15-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-47 |
| filingDate | 1990-03-20^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_47d1d6f7ed409cd0a4f12abd2c1703c2 |
| publicationDate | 1990-10-04^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | WO-9011270-A1 |
| titleOfInvention | Defluoridation of carboxylic acids using zeolites |
| abstract | The invention discloses the use of zeolites as fluoride adsorbers in the purification of a saturated carboxylic acid having 3 to 5 carbon atoms, with a residual fluoride content, for example isobutyric acid. In order to carry out the purification process, the acid to be purified is placed in contact with a zeolite filler, the latter having, in particular, pores of between 0.5 and 0.7 nm, and a crystalline level at least equal to 90 %. According to the specific production modes, water is added to the acid to be defluoridated in a proportion of up to 5 % by weight in relation to said acid; and a first defluoridation of acid used at the outset is carried out on the bed of another adsorber resulting in a coarse defluoridation, before carrying out the final defluoridation on zeolite. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6252105-B1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1053994-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1481958-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-0001647-A3 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-0001647-A2 |
| priorityDate | 1989-03-20^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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