http://rdf.ncbi.nlm.nih.gov/pubchem/patent/BR-112019017941-A2
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/C07C53-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-12 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C53-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-44 |
| filingDate | 2017-05-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6cb2a4361c141d28673a376da4081ed4 |
| publicationDate | 2020-05-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | BR-112019017941-A2 |
| titleOfInvention | method to produce acetic acid |
| abstract | it is intended to provide a method capable of industrially and efficiently producing acetic acid having a good potassium permanganate test value without a great cost. the method includes a distillation step of an aqueous phase and / or an organic phase of a column top condensate from a lower boiling point removal column by a crotonaldehyde removal column; and the reflux ratio of the lower boiling component removal column is not less than 2 (when the aqueous phase is refluxed), and the crotonaldehyde removal column is operated in such a way that at least one of the following conditions (i) to (iii) be satisfied: (i) the reflux ratio of the distillation column is not less than 0.01; (ii) the ratio between the concentration of crotonaldehyde (ppm by mass) in a distilled liquid from the distillation column and the concentration of crotonaldehyde (ppm by mass) in a loading mixture (anterior / posterior) is less than 1; and (iii) the ratio between the concentration of crotonaldehyde (ppm by mass) in a bottom fraction of the distillation column and the concentration of crotonaldehyde (ppm by mass) in a loading mixture (anterior / posterior) is greater than 1 |
| priorityDate | 2017-03-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 69.