http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114939283-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6a3182ebd46735cd12b9bc77bc6afd3f |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-10 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D3-141 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D3-40 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D3-40 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D3-14 |
| filingDate | 2022-05-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9c33f7c9b7294e2abf4db1a11a6e0cbf http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a79d7d5c855f98d62452fe88d800b652 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_26351a420d8b1b15d8a5c9f7843e6a1f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9f7cb67853613659d91ac294f351e543 |
| publicationDate | 2022-08-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-114939283-A |
| titleOfInvention | Method for separating and purifying ethyl acetate-methanol-water ternary azeotrope |
| abstract | The invention proposes a method for separating and purifying ethyl acetate-methanol-water ternary azeotrope mixture, which uses dimethyl sulfoxide as an extraction solvent, and a double-chamber extraction and rectification tower as a separation and purification device. The inner cavity of the double baffle extractive distillation column is divided into a dehydration and solvent recovery column, an extractive distillation column and a methanol recovery column from left to right. The ethyl acetate-methanol-water mixture is added into the dehydration and solvent recovery column, and the water It is extracted from the water side line extraction port in the middle of the dehydration and solvent recovery tower, the product ethyl acetate is extracted through the ethyl acetate extraction port at the top of the extractive distillation tower, and the product methanol is extracted through the methanol side line extraction port at the top of the methanol recovery tower. Compared with the traditional four-column extractive rectification, the method reduces the difficulty of separation, reduces the energy consumption of the separation process, has short technological process, simple operation, high safety, and good separation effect, and the separated product ethyl acetate And methanol has high purity, strong practicability, and great industry promotion. |
| priorityDate | 2022-05-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 33.