http://rdf.ncbi.nlm.nih.gov/pubchem/patent/TW-201840522-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c0444efde206a2f829562761e58b7e1e |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-44 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C53-08 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-44 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-12 |
| filingDate | 2017-06-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_76d313d9eb84f797bee83bf326374f4f |
| publicationDate | 2018-11-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | TW-201840522-A |
| titleOfInvention | Method for producing acetic acid |
| abstract | The invention provides a method for industrially efficiently manufacturing high-quality acetic acid with good test value of potassium permanganate and low content of impurities, without huge cost.n n n The method for producing acetic acid according to the present invention includes a carbonylation reaction step, an evaporation step, and a step for removing low-boiling matter, and (i) removing the condensate from the distillate at the top of the low-boiling column in the water phase by heating the evaporation tank. Controlling the concentration of acetaldehyde above 2340 ppm by mass, and / or (ii) controlling the concentration of methyl acetate in the aqueous phase to less than 19.0% by mass, and / or (iii) removing the distillate at the top of the low boiler column The concentration of methyl acetate in the organic phase of the condensate is controlled to less than 38.0% by mass. At the same time, at least a part of the water phase is treated in the acetaldehyde separation and removal step, so that the residual liquid after the acetaldehyde separation and removal is recycled to the reaction tank and And / or acetaldehyde separation and removal steps and / or other processes. |
| priorityDate | 2017-03-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 60.