http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104884421-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2231-321 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2531-822 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-44 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D3-40 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C53-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-20 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C53-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-44 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 |
| filingDate | 2013-12-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2018-05-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2018-05-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-104884421-B |
| titleOfInvention | Acetic acid production method |
| abstract | The present invention provides a method for efficiently removing acetaldehyde and stably producing high-purity acetic acid. Methanol and carbon monoxide are continuously reacted in the carbonylation reactor (1) in the presence of a catalyst system, and the reaction mixture is continuously supplied to the flasher (2) to generate a volatile phase (2A) containing acetic acid and methyl iodide. The volatile phase (2A) is continuously supplied to the separation tower (3), separated into an overhead product (3A) containing iodomethane and acetaldehyde and a fraction (3B) containing acetic acid, and the volatile phase (2A) and/or The overhead distillate (3A) is cooled in the first condensers C1 and C3 at a predetermined cooling temperature, and the non-condensable gas components are further cooled and condensed in the second condensers C2 and C4, and the formation temperature is lower and Concentrate in which acetaldehyde was concentrated at a high concentration. The high-concentration acetaldehyde concentrate is distilled in the distillation tower (6) to efficiently remove acetaldehyde. |
| priorityDate | 2012-12-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 63.