http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-20140095468-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_93655dcbb2c11d8d1cf91806668c5d4e |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-10 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C29-84 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D3-002 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C29-80 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C29-82 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D3-009 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C29-90 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D3-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C31-207 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C29-80 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C31-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C29-90 |
| filingDate | 2012-08-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4a4aa1c48b62c49aaad2b57fc6f9ccfb http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3cb68ef9434e1cb8a10eeafa1818518f |
| publicationDate | 2014-08-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-20140095468-A |
| titleOfInvention | Process for purifying a stream comprising 1,4-butanediol |
| abstract | The process for purifying a stream composed of 1,4-butanediol comprises the steps of (a) reacting 1,4-butanediol, and γ-butyrolactone, 2- (4-hydroxybutoxy) -tetrahydrofuran, A crude product stream consisting of at least one of (4-hydroxybutyrate) and 3- (4-hydroxybutoxy) -tetrahydrofuran is fed to the first distillation column; (b) removing side draws consisting of 1,4-butanediol and light components (said light components comprising at least part of those produced by the reaction in said first distillation column); (c) passing the stream through a hydrogenation zone; (d) causing the stream from step (c) to be hydrogenated in the hydrogenation zone in the presence of a hydrogenation catalyst and having a reduced content of 2- (4-hydroxybutoxy) -tetrahydrofuran from the hydrogenation zone , Optionally further recovering a 1,4-butanediol product stream comprising (4-hydroxybutyl) -4-hydroxybutyrate formed by reaction of? -Butyrolactone; (e) passing the 1,4-butanediol product stream from step (d) through a second distillation column operative to remove (4-hydroxybutyl) -4-hydroxybutyrate as a bottom stream, Removing the butanediol stream as an overhead; (f) passing the overhead stream removed in step (e) through a third distillation column to recover 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: 53.