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Method for preparing biomechanical unbleached pulp from wheat straw
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Title:
Method for preparing biomechanical unbleached pulp from wheat straw
Author:
JI XINGXIANG
;
WANG RUIMING
;
CHEN JIACHUAN
;
TIAN ZHONGJIAN
;
GUO YUQIAN
;
YANG GUIHUA
Subjects:
APPARATUS THEREFOR
;
IMPREGNATING OR COATING OF PAPER
;
PAPER NOT OTHERWISE PROVIDED FOR
;
PAPER-MAKING
;
PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D
;
PRODUCTION OF CELLULOSE
;
PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCESFROM CELLULOSE-CONTAINING MATERIALS
;
PULP COMPOSITIONS
;
REGENERATION OF PULPING LIQUORS
;
TEXTILES
;
TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G
;
TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKINGMACHINE
Description:
The invention belongs to the field of papermaking technologies and novel materials, and particularly relates to a method for preparing biomechanical unbleached pulp from wheat straw. The method includes pretreating grass by hot water and hot steam; adding trace alkali into the grass and carrying out hot water saturation softening treatment on the grass; adding alkaline biological enzymes into thegrass and carrying out enzyme treatment, pulping and washing. The grass is used as a raw material for the biomechanical unbleached pulp. The method has the advantages that alkali recycling can be omitted in integral production procedures, and environmental pollution can be prevented from the source; the method conforms to the national industry policy of resource conservation, economic cycle, energy conservation and emission reduction; the problems of difficulty in recycling straw pulp alkali wastewater and severe pollution in the prior art can be solved by the aid of the method; the method hasimportant significance in
Creation Date:
2019
Language:
Chinese;English
Source:
esp@cenet
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