US Patent 7994350 Process for continuously preparing N-ethyl-2-pyrrolidone (NEP)
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Patent abstract
Process for the continuous preparation of 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 an the reaction is carried out at a temperature in the range from 320 to 420° C. and an absolute pressure in the range from 70 to 120 bar.
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US Patent 07994350 Process for continuously preparing N-ethyl-2-pyrrolidone (NEP) US Patent 7994350 Process for continuously preparing N-ethyl-2-pyrrolidone (NEP)
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Patent Number
0799435000
Patent Number
799435000
Edits on 6 Apr, 2023
Golden AI
Infobox
Is a
Patent Jurisdiction
Patent Number
079943500
Date of Patent
August 9, 2011
0Patent Application Number
122995440
Date Filed
May 10, 2007
0Patent Primary Examiner
Edits on 24 Sep, 2022
Golden AI
Infobox
Is a
Patent Jurisdiction
Patent Number
079943500
Date of Patent
August 9, 2011
0Patent Application Number
122995440
Date Filed
May 10, 2007
0Patent Primary Examiner
Edits on 8 Dec, 2021
Golden AI
Edits made to:
Infobox (+7 properties)
US Patent 07994350 Process for continuously preparing N-ethyl-2-pyrrolidone (NEP)
Infobox
Is a
Patent jurisdiction
Patent number
07994350
Date of patent
August 9, 2011
Patent application number
12299544
Date Filed
May 10, 2007
Patent primary examiner
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