http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-6425837-B1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D3-143 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-0231 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D15-361 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-47 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/B01J27-08 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-44 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C53-08 |
| filingDate | 2017-11-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2018-11-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2018-11-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-6425837-B1 |
| titleOfInvention | Method for producing acetic acid |
| abstract | (1) a carbonylation reaction step of methanol; (2) a step of separating the reaction mixture into a volatile phase and a low volatile phase; and (3) distilling the volatile phase to obtain a first overhead rich in low boiling components And (4) separating the impurities from the acetic acid stream for purification to obtain purified acetic acid, (9) the first overhead is enriched with acetaldehyde. To separate the stream into a stream and a section for separating into a methyl iodide rich stream and (15) the off gas from the process with an absorbing solvent to separate it into a carbon monoxide rich stream and an acetic acid rich stream Producing acetic acid in a process comprising at least one section selected from the sections of In this way, the oxygen concentration in the gas phase of the process is controlled to less than 7% by volume and / or the oxygen concentration in the liquid phase of the process is controlled to less than 7 × 10 −5 g / g to suppress iodine formation. Do. This method can effectively suppress or prevent localized corrosion of the process unit and the wall of the line. |
| priorityDate | 2017-02-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 96.