http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0687664-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_433f8e8d0240971fcd2c7b8d1b3064f2 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C69-54 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J27-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-54 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-58 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-54 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-62 |
| filingDate | 1995-06-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_71c4ea4893a2a9eb07c962ef24dcd5e1 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b6b721bd4de2fc5ed9a01ef9404b0aef http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6c419642a7a11e59d2e5b87582e50bf2 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_34e4bf0cc0add4284f9477ff68d6eeb0 |
| publicationDate | 1995-12-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0687664-A1 |
| titleOfInvention | Process for the production of alkyle acrylates by direct esterification |
| abstract | An acrylic acid ester is produced by reacting said acid and an alcohol chosen from primary and secondary monoalcohols aliphatic at C₅ or above, in the presence of an acid as an esterification catalyst and a polymerization inhibitor , the alcohol being capable of forming a heteroazeotrope with water, the water formed by the esterification reaction being carried out by distillation in a column in the form of a heteroazeotropic mixture with the alcohol, which mixture, comprising a amount of unreacted acrylic acid is then subjected, after condensation, to separation to give an upper organic phase which is recycled at the top of the distillation column and a lower aqueous phase which is drawn off; according to the invention, an extraction is carried out (for example in a CE extraction column) of the acrylic acid contained in the condensed heteroazeotropic mixture (M) sent to the phase separation by a mixture rich in esterifying alcohol, and returns to the top of the distillation column (CD), the acrylic acid thus extracted, as a constituent of the recycled organic phase, with an increase in the rate of reflux in the distillation column (CD) relative to natural reflux. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1247793-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9823578-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-2822824-A1 |
| priorityDate | 1994-06-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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