http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0759421-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_46ffc67cd29dd51dbd0bc0e335dd3994 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-64 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07B63-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C53-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C53-124 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C53-122 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B63-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-44 |
| filingDate | 1996-08-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7edc5ddce16c9d22bf468d471b3f8b57 |
| publicationDate | 1997-02-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0759421-A1 |
| titleOfInvention | Process for the purification of a C2 to C4 carboxylic acid and/or anhydride having impurities |
| abstract | A process for the purification of a C 2 to C 4 carboxylic acid and/or an anhydride thereof having halide impurities, which process comprises the steps of (a) exposing the impure acid and/or anhydride to electromagnetic radiation under conditions of intensity, wavelength and temperature, and for a time, sufficient to convert at least a portion of the halide impurities to lower - and/or higher-boiling halide components and (b) separating the lower - and/or higher-boiling halide components formed in step (a) from the C 2 to C 4 carboxylic acid and/or anhydride. n Also a process for the purification of a C 2 to C 4 carboxylic acid and/or an anhydride thereof prepared by a carbonylation process, the acid and/or anhydride thereof having non-halide, non-acidic and/or non-anhydride impurities, which process comprises the steps of (a) exposing the impure acid and/or anhydride to electromagnetic radiation under conditions of intensity, wavelength and temperature, and for a time, sufficient to convert at least a portion of the non-halide, non-acidic and/or non-anhydride impurities to lower- and/or higher-boiling non-halide, non-acidic and/or non-anhydride components and (b) separating the lower- and/or higher-boiling non-halide, non-acidic and/or non-anhydride components formed in step (a) from the C 2 to C 4 carboxylic acid and/or anhydride. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6042698-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0893425-A1 |
| priorityDate | 1995-08-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 69.