http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EA-201490581-A1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-10 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D3-009 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C29-82 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D3-002 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D3-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C31-207 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C29-84 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C29-80 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C29-90 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C29-90 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C29-80 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C31-20 |
| filingDate | 2012-08-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2014-09-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EA-201490581-A1 |
| titleOfInvention | METHOD FOR CLEANING THE FLOW CONTAINING 1,4-BUTANDIOL |
| abstract | The method of purification of a stream containing 1,4-butanediol includes the steps of: (a) feeding a first product stream of a crude product containing 1,4-butanediol and one or several impurities — γ-butyrolactone, 2- (4-hydroxybutoxy) tetrahydrofuran to the first distillation column , 4-hydroxybutyl (4-hydroxybutyrate) and 3- (4-hydroxybutoxy) tetrahydrofuran; (b) removing the side distillate containing 1,4-butanediol and low-boiling components, these low-boiling components include at least some of those formed by the reaction in the first distillation column; (c) flow direction to the hydrogenation zone; (d) hydrogenating the stream from step (c) in the hydrogenation zone in the presence of a hydrogenation catalyst and removing from the hydrogenation zone a stream of 1,4-butanediol obtained with a reduced content of 2- (4-hydroxybutoxy) tetrahydrofuran, optionally containing, in addition, 4-hydroxybutyl (4-hydroxybutyrate) formed by the reaction of γ-butyrolactone; (e) directing the flow of the 1,4-butanediol obtained from step (d) to the second distillation column, such that 4-hydroxybutyl (4-hydroxybutyrate) is removed as a bottom stream and the flow of 1,4-butanediol as an upper distillate ; (f) directing the flow of the upper distillate in step (e) to the third distillation column and isolating the purified 1,4-butanediol stream. |
| priorityDate | 2011-09-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 29.