Title:
セルロースアセテートおよび他の有機エステルの製造に使用するために苛性前処理による木パルプの製造方法
Document Type and Number:
Japanese Patent JP2009507937
Kind Code:
A
Abstract:
A process for making cellulose acetate or cellulose esters which pretreats a wood pulp prior to acetylation or esterification is disclosed. The pretreatment of the wood pulp includes the mixture of wood pulp into a caustic solution to form a suspension of wood pulp. The suspension of wood pulp is separated from the caustic solution to form a cake. The cake is washed with an acid to obtain an acid and cellulose cake having a low water content. The acid and cellulose cake is then acetylated or esterifed to form cellulose acetate or other cellulose esters.
Inventors:
One, Lymph
Stogner, Henry, Pee.
Charles Tony
Kaiser, Chuck
Butson, Bill
Stogner, Henry, Pee.
Charles Tony
Kaiser, Chuck
Butson, Bill
Application Number:
JP2008516939A
Publication Date:
February 26, 2009
Filing Date:
June 06, 2006
Export Citation:
Assignee:
Celanese Acetate, LRC
International Classes:
C08B3/00; C08B1/02; C08B3/06; D21H11/20
Attorney, Agent or Firm:
Seiji Ohno
Koji Morita
Reiko Tanaka
Yuki Yamada
Koji Morita
Reiko Tanaka
Yuki Yamada