Title:
【発明の名称】硫酸塩法によるパルプ化の際に回収される黒液の固体含量増加方法
Document Type and Number:
Japanese Patent JPH0762318
Kind Code:
B2
Abstract:
The Invention relates to a process of increasing the solids content of black liquor at its recovery in a sulfate pulping process. According to the invention, the liquor is first heated at a presure which is so high that no boiling occurs at the heating temperature, after which the liquor is led to a tank where its pressure is released to a value below the saturation pressure of steam at the relative temperature of the liquor such that water is evaporated. The liquor thus concentrated can be led to the liquor combustion in the recovery process.
Inventors:
Alf Ove Anderson
Application Number:
JP13104686A
Publication Date:
July 05, 1995
Filing Date:
June 05, 1986
Export Citation:
Assignee:
Al Huo-Vue Anderson
International Classes:
D21C11/10; F23G7/04; (IPC1-7): D21C11/10; F23G7/04
Domestic Patent References:
| JP4838326B1 | ||||
| JP4420481B1 |
Attorney, Agent or Firm:
Minoru Nakamura (4 outside)
Next Patent: ADHESIVE FOR POUCH