http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102372600-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C29-86 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C31-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C29-76 |
| filingDate | 2010-08-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2014-10-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2014-10-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-102372600-B |
| titleOfInvention | Separation method for glycol, propylene glycol and butylene glycol |
| abstract | The invention relates to a separation method for glycol, propylene glycol and butylene glycol and mainly aims to solve the problem of high energy consumption in separation of glycol, propylene glycol and butylene glycol by using azeotropic rectification in the prior art. The invention comprises the following sequential steps that: a raw material containing glycol, propylene glycol and butylene glycol and an extractant enter into an extraction tower (1) respectively from the top and the bottom of the extraction tower, an extractant material flow I containing butylene glycol is obtained at tower top, and glycol material flow II containing propylene glycol is obtained at tower bottom; the material flow I enters into the central part of an extractant recovery tower (2), the recovered extractant is obtained at tower top, and an extractant solution containing butylene glycol is obtained at tower bottom; the material flow I enters into the central part of a glycol treating tower (3), a solution containing propylene glycol and the extractant is obtained at tower top, and the product of glycol is obtained at tower bottom. The method provided in the invention enables the above-mentioned problem to be well overcome and can be used in industrial production for separation of glycol, propylene glycol and butylene glycol. |
| priorityDate | 2010-08-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 36.