Predicate |
Object |
assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8e0bf0928b608797b70bbc2b91c7e52e |
classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D207-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D207-267 |
classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D207-26 |
filingDate |
2007-05-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_42f8c1676cfda2649763f5a44f786a87 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bac1a77c55c52903d7d15ebcd4a49f45 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_46c3fb2ce42a62b9f064505c27fd910b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_88ca94d578988ad01f0083b38550e3b8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6ec458fc3d5d59a4f11cd5e3481752ef http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c241bd03e6baee2cb1456fb166d36e99 |
publicationDate |
2009-02-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
publicationNumber |
EP-2019821-A1 |
titleOfInvention |
Process for continuously preparing n- ethyl-2-pyrrolidone (nep) |
abstract |
A process for continuously preparing N-ethyl-2-pyrrolidone (NEP) by reacting gamma-butyrolactone (GBL) with monoethylamine (MEA) in the liquid phase, wherein GBL and MEA are used in a molar ratio in the range from 1:1.08 to 1:2 and the reaction is performed at a temperature in the range from 320 to 420°C and an absolute pressure in the range from 70 to 120 bar. |
priorityDate |
2006-05-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
type |
http://data.epo.org/linked-data/def/patent/Publication |