Title:
シアノピリジンの製造方法およびデバイス
Document Type and Number:
Japanese Patent JP5784615
Kind Code:
B2
Abstract:
Subject of the invention is a method for the production of a cyanopyridine, comprising the steps of
(a) providing a column comprising an absorber section and a stripping section, the absorber section being positioned above the stripping section, such that liquid which passed the absorber section enters the stripping section,
(b) feeding a gaseous phase comprising the cyanopyridine into the column,
(c) contacting the gaseous phase with an aqueous solution in the absorber section, such that at least a portion of the cyanopyridine is dissolved in the aqueous solution,
(d) stripping the aqueous solution obtained from the absorber section in step (c) with a stripping gas in the stripping section, and
(e) eluting an aqueous solution comprising the cyanopyridine from the bottom of the column. Another subject of the invention is a device for carrying out the invention.
Inventors:
Zengkulsen, Anton
Pianzola, Daniel
Pianzola, Daniel
Application Number:
JP2012533514A
Publication Date:
September 24, 2015
Filing Date:
October 08, 2010
Export Citation:
Assignee:
LONZA LIMITED
International Classes:
C07D213/84
Domestic Patent References:
| JP2008532975A | ||||
| JP11140461A | ||||
| JP8506082A | ||||
| JP2013507406A | ||||
| JP50083374A | ||||
| JP9163995A | ||||
| JP9136876A | ||||
| JP2010500369A | ||||
| JP62099360A |
Foreign References:
| WO2009052174A1 | ||||
| GB790937B | ||||
| EP0232182A1 | ||||
| WO1995032055A1 | ||||
| WO2003022819A1 | ||||
| CN101045706A |
Attorney, Agent or Firm:
Kurata Masatoshi
Satoshi Kono
Makoto Nakamura
Yoshihiro Fukuhara
Takashi Mine
Toshio Shirane
Sadao Muramatsu
Nobuhisa Nogawa
Katsu Sunagawa
Satoshi Kono
Makoto Nakamura
Yoshihiro Fukuhara
Takashi Mine
Toshio Shirane
Sadao Muramatsu
Nobuhisa Nogawa
Katsu Sunagawa