Title:
【発明の名称】塩素酸塩製造用原料の供給によって環境への悪影響を最小限にしたパルプ製造装置
Document Type and Number:
Japanese Patent JPH09502227
Kind Code:
A
Abstract:
Liquid effluent from a pulp mill bleach plant having at least one chlorine chemical bleach stage is evaporated and then used in chlorate manufacture. The bleach plant effluent produced by evaporation may be stored and then transported to an off-site chlorate production location, and/or may be subjected to a sodium chloride removal process (such as evaporative crystallization) and only sodium chloride transported to the off-site location. Chlorates produced off site can be returned to the mill (with acid and caustic that are optionally produced) for chlorine dioxide manufacture on site. The chloride-depleted stream from sodium chloride removal may be burned in the mill recovery boiler.
Inventors:
Lindbergh, Hans, Gee.
Application Number:
JP50810494A
Publication Date:
March 04, 1997
Filing Date:
July 19, 1994
Export Citation:
Assignee:
Kamiya Incorporated
International Classes:
C01B11/02; C01B11/14; D21C9/14; D21C11/00; (IPC1-7): D21C9/14; D21C11/00
Attorney, Agent or Firm:
Shizuo Nakamura (2 outside)