http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4262138-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5c14824b8cb02e6fddd8190320d08e59 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-14 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-14 |
| filingDate | 1979-04-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1981-04-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0ebcc4e067e2f085605c568dfbc9d484 |
| publicationDate | 1981-04-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-4262138-A |
| titleOfInvention | Preparation of carboxylic acid esters with BF3 complex catalyst |
| abstract | In a process wherein ethylene or propylene is carbonylated with carbon monoxide to form carboxylic acid esters in the presence of a catalyst complex of one mole of BF3 and one mole of alcohol, the invention concerns a technique wherein the catalyst is recovered from the reaction product and recycled. The carbonylation is carried out until approximately one-half of the alcohol is consumed, to form a reaction mass containing the BF3, the alcohol, and the carboxylic acid ester in a 2:1:1 molar ratio. In the first step, the one mole of the free BF3 is vaporized from the reaction mass. The remaining admixture is a 1:1:1 mixture of the three aforesaid compounds. To this mixture additional alcohol is added and the mixture is subjected to distillation. A carboxylic acid ester/alcohol azeotrope and residual alcohol are removed by the distillation, to leave a residue containing a 1:2 BF3/alcohol complex. This complex is combined with an additional mole of BF3 to form the 1:1 catalyst complex used in the carbonylation. The additional mole of BF3 is preferably that initially separated from the reaction mass; however, it may be obtained from an external source. The carboxylic acid ester/alcohol mixture may be separated by azeotropic distillation using an azeotroping agent, such as octane, to recover the alcohol-octane as overhead product and the carboxylic acid ester as bottoms product. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5643859-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5629434-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5767046-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5241112-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EA-032583-B1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5646332-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5650536-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5227521-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9382190-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2013093472-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5703256-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5717039-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5698722-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5696064-A |
| priorityDate | 1979-04-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 71.