http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-102257566-B1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-44 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C53-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07B61-00 |
| classificationIPCInventive | 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/C07C53-08 |
| filingDate | 2017-05-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-05-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-05-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-102257566-B1 |
| titleOfInvention | Acetic acid production method |
| abstract | The present invention provides a method capable of producing acetic acid having a good potassium permanganate test value without incurring a large cost and industrially efficiently. In the method for producing acetic acid of the present invention, an agent for recycling at least a part of the aqueous phase and/or the organic phase obtained by condensing the first overheads obtained in the carbonylation reaction step, evaporation step, desorption ratio step, and desorption ratio step in a reaction tank. 1 A method for producing acetic acid including an overhead recycling step, characterized in that the concentration of crotonaldehyde in the first acetic acid obtained in the desorption ratio step is controlled to 2.2 mass ppm or less. The catalyst system may further contain an ionic iodide. In addition, the method for producing acetic acid may further include an acetaldehyde separation and removal step for separating and removing acetaldehyde by distilling at least a part of the aqueous phase and/or the organic phase in which the first overheads are condensed. |
| priorityDate | 2017-03-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 62.