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METHOD OF PRODUCING CELLULOSE WOOD PULP
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Title:
METHOD OF PRODUCING CELLULOSE WOOD PULP
Author:
IVAKHNOV ARTEM DMITRIEVICH
;
BOGOLITSYN KONSTANTIN GRIGOR'EVICH
;
SKREBETS TAT'JANA EHDUARDOVNA
Subjects:
APPARATUS THEREFOR
;
PAPER-MAKING
;
PRODUCTION OF CELLULOSE
;
PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCESFROM CELLULOSE-CONTAINING MATERIALS
;
REGENERATION OF PULPING LIQUORS
;
TEXTILES
Description:
FIELD: textiles, paper.SUBSTANCE: method includes cooking of cellulose containing raw material in the presence of hydrogen peroxide, followed by alkali extraction and washing off. Carbon dioxide in the supercritical state is used as a medium, and the hydrogen peroxide is added in the form of a solution containing at least 30% hydrogen peroxide. Consumption of hydrogen peroxide for cooking is at least 65% by weight of oven-dry wood.EFFECT: invention enables to produce cellulose wood pulp which has high mechanical strength, to improve the environmental situation near the manufacturing enterprises.5 cl, 6 ex, 1 tbl Изобретение относится к области переработки древесины, а именно к области производства волокнистых целлюлозных полуфабрикатов. Способ включает варку целлюлозосодержащего сырья в присутствии пероксида водорода с последующим щелочением и отмывкой. Новизна заявленного способа заключается в том, что в качестве среды используют диоксид углерода в сверхкритическом состоянии, при этом пероксид водорода вводят в виде раствора с содержанием пероксида водорода не менее 30%. Расход пероксида водорода на варку составляет не менее 65% от массы абсолютно сухой древесины. Изобретение позволяет получить волокнистый полуфабрикат целлюлозы, обладающий повышенной механической прочностью, а также улучшить экологическую обстановку вблизи предприятий-производителей. 4 з.п. ф-лы, 6 пр., 1 табл.
Creation Date:
2013
Language:
English;Russian
Source:
esp@cenet
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