http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-2644451-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/C07C51-47 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D15-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-47 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D15-00 |
| filingDate | 1989-03-20^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_47d1d6f7ed409cd0a4f12abd2c1703c2 |
| publicationDate | 1990-09-21^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | FR-2644451-A1 |
| titleOfInvention | USE OF ZEOLITES FOR THE PURIFICATION OF SATURATED CARBOXYLIC ACIDS WITH A RESIDUAL CONTENT OF FLUORIDES AND METHOD OF PURIFYING SAME |
| abstract | It is proposed, in accordance with the invention, to use zeolites as fluoride adsorbents in the purification of a saturated carboxylic acid having from 3 to 5 carbon atoms, with residual fluoride content, for example isobutyric acid. To carry out the purification process, the acid to be purified is brought into contact with a charge of zeolite, the latter having in particular pores with an opening of between 0.5 and 0.7 nm, and in particular having a degree of crystallinity. at least equal to 90%. According to particular embodiments, water is added to the acid to be defluorinated, in an amount of up to 5% by weight relative to said acid; and a first defluorination of the starting acid is carried out on a bed of another adsorbent ensuring coarse defluorination, before proceeding with the final defluorination on zeolite. |
| priorityDate | 1989-03-20^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Showing number of triples: 1 to 29 of 29.