http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-WO2018135015-A1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C53-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-44 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C53-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D3-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-44 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D3-32 |
| filingDate | 2017-05-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2019-01-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-WO2018135015-A1 |
| titleOfInvention | Method for producing acetic acid |
| abstract | In a method for producing acetic acid comprising a step of purifying acetic acid by distilling a crude acetic acid solution containing acetic acid and impurities having a boiling point higher than that of acetic acid, a method capable of suppressing corrosion of the distillation apparatus is provided. The method for producing acetic acid according to the present invention is a method for producing acetic acid comprising a step of purifying acetic acid by distilling acetic acid and a crude acetic acid solution containing impurities having a boiling point higher than that of acetic acid, and distillation of the crude acetic acid solution is distilled. It is characterized in that it is carried out under conditions where the tower bottom temperature is 165 ° C. or lower. The acetic acid concentration in the crude acetic acid solution subjected to distillation is preferably 90% by mass or more. Examples of impurities having a boiling point higher than that of acetic acid include acetate, acetic anhydride, and propionic acid. The bottom pressure of the distillation column is preferably less than 0.255 MPaG. |
| priorityDate | 2017-01-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 59.