Title:
ジアルキルカーボネートを製造する方法
Document Type and Number:
Japanese Patent JP5689881
Kind Code:
B2
Abstract:
The present invention provides a method for preparing dialkyl carbonate from urea or alkyl carbamate and alkyl alcohol using an ionic liquid comprising a cation, which produces a hydrogen ion, and a hydrophobic anion containing fluorine with high temperature stability in the presence of catalyst containing a metal oxide or hydrotalcite. Since the present invention can prepare dialkyl carbonate at a pressure lower than those of existing methods, it does not require an expensive pressure control device and peripheral devices for maintaining high pressure including the installation cost. It is also the method for preparing a dialkyl carbonate with high yield, thus improving economical efficiency. Moreover, the method of the present invention hardly produces any waste during the process and is thus an eco-friendly method.
Inventors:
コ，ゼ チョン
キム，チョル オン
キム，ユン ミン
キム，チョル オン
キム，ユン ミン
Application Number:
JP2012522738A
Publication Date:
March 25, 2015
Filing Date:
November 27, 2009
Export Citation:
Assignee:
リサーチ インスティチュート オブ インダストリアル サイエンス アンド テクノロジー
International Classes:
C07C68/00; B01J21/10; B01J21/16; B01J23/02; B01J23/06; B01J23/10; B01J23/14; C07C69/96
Attorney, Agent or Firm:
Hiroshi Arafune
Yoshio Arafune
Yoshio Arafune