Title:
木材からパルプを製造する方法
Document Type and Number:
Japanese Patent JP2009540134
Kind Code:
A
Abstract:
A process for producing fibrous material which includes the following: preparing a solution of chemicals that includes less than 25% of sulphite (calculated as Na2SO3), based on the oven-dry amount of the lignocellulosic raw material; mixing the solution of chemicals with wood in a specified liquor material; heating the solution of chemicals and the wood to a temperature above room temperature; and then either of the following alternatives: (1) removing the free-flowing solution of chemicals and digestion of the wood in the vapor phase; (2) having the wood digested in the liquid phase and separating the free-flowing solution of chemicals and the wood.
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Inventors:
Eza-Mattie Aart
Hans-Ludwig Schubert
Hans-Ludwig Schubert
Application Number:
JP2009513556A
Publication Date:
November 19, 2009
Filing Date:
April 04, 2007
Export Citation:
Assignee:
VOITH PATENT GmbH
International Classes:
D21C3/06; D21H11/06
Attorney, Agent or Firm:
Toshio Yano
Toshiomi Yamazaki
Takuya Kuno
Hiroshi Sugimoto
Kimihiro Hoshi
Hiroyasu Ninomiya
Einzel Felix-Reinhard
Reinhard Einsel
Toshiomi Yamazaki
Takuya Kuno
Hiroshi Sugimoto
Kimihiro Hoshi
Hiroyasu Ninomiya
Einzel Felix-Reinhard
Reinhard Einsel