Title:
ジアリールカーボネートを製造するためのプロセス
Document Type and Number:
Japanese Patent JP2009516682
Kind Code:
A
Abstract:
Diphenyl carbonate is produced by reacting phenol with diethyl carbonate in a series of fixed bed reactors each of which is connected at different position on a distillation column via side draw and return streams. The composition of material in a distillation column varies along the length of the column, which is predictable under a given set of conditions of temperature and pressure, thus withdrawing streams at different stages in the column, allows the reactor receiving the feed from a particular stage to be operated under conditions to maximize the desired reaction, while allowing the unreacted or byproduct to go back into the distillation and be sent to a stage (by the equilibrium of the distillation) where they are favorably treated in a reactor.
Inventors:
Gerbeini abraham pea
Ryu Jay Young
Ryu Jay Young
Application Number:
JP2008541158A
Publication Date:
April 23, 2009
Filing Date:
August 30, 2006
Export Citation:
Assignee:
Catholic Distillation Technologies
International Classes:
C07C68/06; B01D3/14; C07C69/96; C07B61/00
Domestic Patent References:
| JPH04230242A | 1992-08-19 | |||
| JPH08188558A | 1996-07-23 | |||
| JPH06263694A | 1994-09-20 | |||
| JPH04224547A | 1992-08-13 | |||
| JPH04235951A | 1992-08-25 |
Foreign References:
| US5426207A | 1995-06-20 |
Attorney, Agent or Firm:
Kenji Yoshida
Jun Ishida
Jun Ishida