Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
接着剤により複合化された木質複合材の廃棄物からセルロース及びリグニンを回収する方法
Document Type and Number:
Japanese Patent JP4352213
Kind Code:
B2
Abstract:

To provide a method for easily recovering lignin and cellulose from a waste of a woody composite material compounded by an adhesive such as veneer, laminated wood or the like.

The waste of the wood composite material compounded by the adhesive is crushed by a crusher to obtain crushed matter with the maximum size of 10 cm or below. This crushed matter is immersed in water and the water impregnated crushed matter is subsequently immersed in an alkali solution. This impregnated crushed matter is irradiated with ultrasonic waves and finely crushed by fine vibration by ultrasonic waves (cavitation effect) not only to separate and recover cellulose but also to elute and recover lignin. By this method, cellulose and lignin are recovered.

COPYRIGHT: (C)2005,JPO&NCIPI


Inventors:
Kitagawa Sadao
Aka Akira
Application Number:
JP2003116285A
Publication Date:
October 28, 2009
Filing Date:
April 21, 2003
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
KI System Engineering Co., Ltd.
United Nations Corporation
International Classes:
B02C19/18; B02C23/08; B27K3/02; B09B3/00; B27K3/52; B27K5/00; B27K5/06
Domestic Patent References:
JP2000504072A
JP3234883A
JP62127000A
Attorney, Agent or Firm:
Yukio Murata