http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102432460-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_3aaebe5d8c73807d4aa0ab543bc2a92c |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-40 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-54 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-44 |
| filingDate | 2011-10-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2014-01-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6f28f163792a460ae3fbcd7b1fe01c60 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d6a869150ef37b2bc8fbee276b3f31d7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6a6345b4b58a1356862d7cd85e43dc9c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8d4898807972688c888d1da8f5f4e6bf http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_202d4ea8b3bd8e1e5beada03c9b606c6 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_857259eb46e8d079064991b6c0ea01fa http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3c0ce6ec5040c97e9c1f1af691fac947 |
| publicationDate | 2014-01-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-102432460-B |
| titleOfInvention | Method for purifying diacid dimethyl esters by plate distillation separation |
| abstract | The invention discloses a method for purifying diacid dimethyl esters by plate distillation separation. The distillation separation is successively finished in three series-wound distillation towers. The bottom of a second distillation tower is vertically provided with a separator plate, which divides the bottom cavity into a first tower chamber and a second tower chamber. A material inlet of the second distillation tower is positioned below the top of the separator plate. The method provided by the invention comprises the following steps of: mixing a raw material with diacid dimethyl esters, allowing the mixture to enter into the first distillation tower, separating a light component out from the top of first distillation tower, allowing the material at the tower bottom to enter into the second distillation tower, separating 1,4-succinic acid dimethyl ester out from the top of the distillation tower, separating 1,5-dimethyl glutarate out from the bottom of the second tower chamber of the second distillation tower, allowing the material at the tower bottom of the first tower chamber of the second distillation tower to enter into the third distillation tower, separating 1,6-adipic acid dimethyl ester out from the top of the third distillation tower, and discharging a heavier component in the raw material from the tower bottom. Starting with the first distillation tower, the temperature of the distillation towers successively rises and the pressure successively reduces. |
| priorityDate | 2011-10-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 35.