RU96100370A - METHOD FOR PRODUCING LIGNIN - Google Patents

METHOD FOR PRODUCING LIGNIN

Info

Publication number
RU96100370A
RU96100370A RU96100370/04A RU96100370A RU96100370A RU 96100370 A RU96100370 A RU 96100370A RU 96100370/04 A RU96100370/04 A RU 96100370/04A RU 96100370 A RU96100370 A RU 96100370A RU 96100370 A RU96100370 A RU 96100370A
Authority
RU
Russia
Prior art keywords
producing lignin
liquor
lignin
producing
isolating
Prior art date
Application number
RU96100370/04A
Other languages
Russian (ru)
Inventor
А.Ф. Гоготов
А.М. Марков
В.В. Вершаль
Original Assignee
Малое предприятие "Экология БрАЗа"
Filing date
Publication date
Application filed by Малое предприятие "Экология БрАЗа" filed Critical Малое предприятие "Экология БрАЗа"
Publication of RU96100370A publication Critical patent/RU96100370A/en

Links

Claims (1)

Способ получения щелочного лигнина из отходов целлюлозной промышленности, включающий обработку сульфатного черного щелока минеральной кислотой до pH 4,0 - 4,5 и выделение готового продукта, отличающийся тем, что обработку щелока осуществляют смесью, состоящей из перекиси водорода и азотной кислоты, взятых в соотношении 1 : 9 - 10.A method of producing alkaline lignin from pulp industry wastes, comprising treating sulfate black liquor with mineral acid to a pH of 4.0 - 4.5 and isolating the finished product, characterized in that the liquor is treated with a mixture of hydrogen peroxide and nitric acid, taken in the ratio 1: 9 - 10.
RU96100370/04A 1996-01-09 METHOD FOR PRODUCING LIGNIN RU96100370A (en)

Publications (1)

Publication Number Publication Date
RU96100370A true RU96100370A (en) 1998-03-27

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