http://rdf.ncbi.nlm.nih.gov/pubchem/patent/ES-2702766-T3
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c0444efde206a2f829562761e58b7e1e |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-44 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-44 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C53-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-12 |
| filingDate | 2011-09-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2019-03-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2019-03-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | ES-2702766-T3 |
| titleOfInvention | Acetic acid production process |
| abstract | A process for producing acetic acid, comprising: (a) a reaction step to allow the methanol to react continuously with carbon monoxide in the presence of a catalyst system comprising a metal catalyst, a halide salt and methyl iodide in a carbonylation reactor, (b) an instantaneous evaporation step for continuously feeding an instant evaporation apparatus with a reaction mixture from the reactor and separating a lower boiling component (2A) containing the product acetic acid and iodide of methyl and a higher boiling component (2B) containing the metal catalyst and the halide salt, (c) an acetic acid collecting step to continuously feed a distillation column with the boiling point component lower (2A), and separate a lower boiling component (3A) containing methyl iodide and the secondary product acetaldehyde yu a stream (3B) containing acetic acid to collect acetic acid, (d) a condensation step to temporarily condense and maintain the lower boiling point component (3A) in a decanter and discharge the lower boiling point component. (3A) from the decanter, and (e) a separation and recirculation step for separating the lower boiling component (3A) discharged from the decanter into acetaldehyde and a liquid waste and recirculating the liquid waste to a stage from the reaction stage to the separation step of acetaldehyde, where in the separation and recirculation step, the lower boiling component (3A) is fed to an acetaldehyde separation column and separated into a boiling component lower (4A) containing acetaldehyde and a higher boiling component (4B), as the liquid waste for recirculation, containing methyl iodide by distillation, in which the process is a continuous process in which, in the stage of acetic acid collection (c), the flow rate of the lower boiling point component (2A) to be fed to the distillation column is from 90 to 110, assuming that the average flow rate of the lowest boiling point component (2A) to be fed to the distillation column is 100; and in the condensing step (d), the flow rate of the lower boiling component (3A) to be fed to the decanter is 80 to 120, assuming that the average flow rate of the lower boiling component ( 3A) to be fed to the decanter is 100; wherein in the condensation step (d), the amount of the lower boiling point component (3A) to be maintained is adjusted or controlled based on a fluctuating flow rate of the lower boiling component (3A) that is will feed the decanter, and the amount of the lower boiling point component (3A) to be fed to the separation and recirculation stage (e) is adjusted or controlled by recirculating part of the lower boiling point component (3A) discharged from the decanter to the carbonylation reactor and / or to the distillation column, so that, assuming that the average flow rate of the lower boiling point component (3A) to be fed to the separation stage and recirculation is 100, the flow rate of the lower boiling component (3A) to be fed to the separation and recirculation stage is adjusted so that it is from 90 to 110. |
| priorityDate | 2010-10-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 69.