http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-101398614-B1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D307-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D307-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07B63-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B63-00 |
| filingDate | 2009-10-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2014-05-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2014-05-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-101398614-B1 |
| titleOfInvention | Tetrahydrofuran Purification Method and Purification System |
| abstract | A process for purifying tetrahydrofuran and a tetrahydrofuran from a liquid containing at least water, dihydrofuran and butanol as an impurity, comprising the steps of distilling the liquid by a distillation column to obtain a first bottom liquid containing water as a main component, A first distillation step of separating the first top sperm into a first top sperm containing as a main component tetrahydrofuran, dihydrofuran and butanol as a main component, and a first distillation step of distilling the first top sperm from the distillation tower to obtain a solution containing tetrahydrofuran and butanol as main components A second distillation step of separating the two-phase bottom liquid and a second top-distillate containing dihydrofuran as main components, and a third top bottom liquid containing butanol as a main component by subjecting the second bottom liquid to distillation with a distillation tower, And a third distillation step of separating the second top sperm into a third top sperm containing tetrahydrofuran as a main component, To the first distillation step, and then discharging the remaining portion to the outside of the system. The method for purifying tetrahydrofuran according to claim 1, |
| priorityDate | 2009-10-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 32.