RU97116666A - METHOD FOR PRODUCING BISULPHITE CELLULOSE - Google Patents

METHOD FOR PRODUCING BISULPHITE CELLULOSE

Info

Publication number
RU97116666A
RU97116666A RU97116666/12A RU97116666A RU97116666A RU 97116666 A RU97116666 A RU 97116666A RU 97116666/12 A RU97116666/12 A RU 97116666/12A RU 97116666 A RU97116666 A RU 97116666A RU 97116666 A RU97116666 A RU 97116666A
Authority
RU
Russia
Prior art keywords
cellulose
producing
bisulphite
cooking
pressure
Prior art date
Application number
RU97116666/12A
Other languages
Russian (ru)
Other versions
RU2114230C1 (en
Inventor
М.Г. Мутовина
Т.А. Бондарева
Н.Е. Самсонов
Б.А. Фадеев
В.А. Кирсанов
Г.Ю. Тольман
А.Н. Тимошевский
Ю.П. Дедик
В.Н. Ефимова
А.А. Савин
М.А. Фотеев
Н.В. Миклина
А.М. Владимиров
В.А. Саблин
Б.А. Овчинников
Ю.Н. Безносов
Л.Е. Фетисова
Б.В. Орехов
В.И. Баранов
Г.А. Ложкин
С.Ю. Пенягин
А.А. Андриец
В.В. Петров
С.А. Пономарев
Original Assignee
Оао "Цнииб"
Камский целлюлозно-бумажный комбинат
ЗАО "Сясьский ЦБК"
СПАО "Цепрусс"
АО "Соликамскбумпром"
Filing date
Publication date
Application filed by Оао "Цнииб", Камский целлюлозно-бумажный комбинат, ЗАО "Сясьский ЦБК", СПАО "Цепрусс", АО "Соликамскбумпром" filed Critical Оао "Цнииб"
Priority to RU97116666/12A priority Critical patent/RU2114230C1/en
Priority claimed from RU97116666/12A external-priority patent/RU2114230C1/en
Application granted granted Critical
Publication of RU2114230C1 publication Critical patent/RU2114230C1/en
Publication of RU97116666A publication Critical patent/RU97116666A/en

Links

Claims (2)

1. Способ получения бисульфитной целлюлозы, включающий введение в варочный аппарат щепы и раствора на смешанном основании MgO и Na2O и варку щепы при повышенных температуре и давлении, отличающийся тем, что перед варкой щепу подвергают пропитке введенным раствором при температуре 115-120oC и давлении 4,0-7,0•105H/м2 и pH 2,3-3,2 в течение 1,5-2 ч, при этом используют раствор при соотношении MgO и Na2 9 : 1 - 1 : 1,5 с содержанием в нем всего SO2 4,0-5,5%.1. The method of producing bisulfite cellulose, comprising introducing into the cooking apparatus chips and a solution on a mixed base of MgO and Na 2 O and cooking chips at elevated temperature and pressure, characterized in that before cooking the chips are subjected to impregnation with an added solution at a temperature of 115-120 o C and a pressure of 4.0-7.0 • 10 5 N / m 2 and a pH of 2.3-3.2 for 1.5-2 hours, while using a solution with a ratio of MgO and Na 2 of 9: 1 - 1: 1.5 with a total content of SO 2 of 4.0-5.5%. 2. Способ по п. 1, отличающийся тем, что варку проводят при температуре 153-158oC и давлении 6,3-7,0 105 Н/м2.2. The method according to p. 1, characterized in that the cooking is carried out at a temperature of 153-158 o C and a pressure of 6.3-7.0 10 5 N / m 2 .
RU97116666/12A 1997-10-08 1997-10-08 Method of preparing bisulfite cellulose RU2114230C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU97116666/12A RU2114230C1 (en) 1997-10-08 1997-10-08 Method of preparing bisulfite cellulose

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU97116666/12A RU2114230C1 (en) 1997-10-08 1997-10-08 Method of preparing bisulfite cellulose

Publications (2)

Publication Number Publication Date
RU2114230C1 RU2114230C1 (en) 1998-06-27
RU97116666A true RU97116666A (en) 1998-11-20

Family

ID=20197825

Family Applications (1)

Application Number Title Priority Date Filing Date
RU97116666/12A RU2114230C1 (en) 1997-10-08 1997-10-08 Method of preparing bisulfite cellulose

Country Status (1)

Country Link
RU (1) RU2114230C1 (en)

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