http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103073388-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c7610cef0de1410bf21e1e54706e208a |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C31-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C29-84 |
| filingDate | 2013-01-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2015-07-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5c3bb82ddebbe54ed4a35148a13e3984 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1a135200fdf3355284475555fca5a1d4 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_efeb0b4605df43fafb9235627dcf385c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a5f57e804c6f31fa7559c646c39b0ae9 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_37a6fec1f44acf718f00fcc39762c111 |
| publicationDate | 2015-07-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-103073388-B |
| titleOfInvention | Method for separating alcohol from water through ion liquid extraction and rectification |
| abstract | The invention belongs to the technical field of rectification separation, and relates to a method for separating alcohol from water through ion liquid extraction and rectification, in particular to a method for separating alcohol from the water through extraction and rectification with an ion liquid and a compound solvent of the ion liquid. The method comprises the steps that an ion liquid [EMIM][Ac] and inorganic salt serve as extraction agents for separating alcohol from the water, wherein a mass fraction of inorganic salt is 0-20%; a high-purity alcohol product formed by crossing azeotrope can be obtained from the top of an extraction and rectification tower on the conditions that the extraction and rectification tower is at atmospheric pressure, a mass flow ratio of the extraction agents to a raw material is 0.5-6.0, and a reflux ratio is 1.0-5.0; a solvent recovery flash tank operates on the conditions that reduction pressure is 0.05-0.5atm and a temperature is 120-200 DEG C; and an extraction agent obtained from a tower kettle is recycled. With the method, the selectivity is improved significantly, and azeotropy of alcohol and the water is broken, so that a concentration of alcohol can be formed by the crossing azeotrope. |
| priorityDate | 2013-01-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 33.