Title:
ピロリドンおよびN-ビニルピロリドン残留物を処理するための方法
Document Type and Number:
Japanese Patent JP5100945
Kind Code:
B2
Abstract:
A process for working up residues from the preparation of pyrrolidone and/or N-vinylpyrrolidone comprises subjecting the residues to a thermolysis.
Inventors:
Herbert Helfeld
Martin Schmid-Radde
Gerhard Laqua
Ulrich Aiden
Stephan Scholl
Christoph Ubler
Martin Schmid-Radde
Gerhard Laqua
Ulrich Aiden
Stephan Scholl
Christoph Ubler
Application Number:
JP2001582283A
Publication Date:
December 19, 2012
Filing Date:
May 10, 2001
Export Citation:
Assignee:
BASF SE
International Classes:
C07D207/267; B01D3/14; B01J3/00; C07D201/16; C07D207/26
Domestic Patent References:
| JP5500658A | ||||
| JP6228088A | ||||
| JP6228089A | ||||
| JP53137957A | ||||
| JP2001122854A |
Other References:
S. K. Kakar,Thermal decomposition of polypyrrolidone in the solid state,Textile Research Journal,1976年,46(10),776-778頁
Attorney, Agent or Firm:
Kiyoshi Kuruma
Kamiya Yukie
Einzel Felix-Reinhard
Takuya Kuno
Kamiya Yukie
Einzel Felix-Reinhard
Takuya Kuno