http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111643915-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D3-14 |
| 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 |
| filingDate | 2019-09-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-09-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-09-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-111643915-B |
| titleOfInvention | Rectification device and rectification method for oxo-synthesis of acetic acid |
| abstract | The invention relates to a rectifying device for oxo-synthesis of acetic acid, which is internally provided with a partition plate (1) for bulkhead rectification of crude acetic acid in the oxo-synthesis of acetic acid, wherein the partition plate (1) is vertically arranged between a tower top rectifying section and a tower bottom stripping section, so that spaces at two sides of the partition plate (1) respectively form a first rectifying area (2) and a second rectifying area (3); the bottom end and the top end of the first rectifying area (2) and the second rectifying area (3) are communicated to form a common rectifying section (4) and a common stripping section (5); the first rectifying area (2) is provided with a crude acetic acid feeding hole (21) and a methanol injection assembly (22); the second rectifying area (3) is provided with a high-purity acetic acid discharge hole (31). Compared with the prior art, the purity of the acetic acid product reaches the excellent grade, and the energy consumption is reduced to 0.5-0.8t steam/t acetic acid compared with 1.8t steam/t acetic acid of three-tower rectification. |
| priorityDate | 2019-09-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 33.