RU96124423A - CELLULOSE BLEACHING METHOD - Google Patents

CELLULOSE BLEACHING METHOD

Info

Publication number
RU96124423A
RU96124423A RU96124423/12A RU96124423A RU96124423A RU 96124423 A RU96124423 A RU 96124423A RU 96124423/12 A RU96124423/12 A RU 96124423/12A RU 96124423 A RU96124423 A RU 96124423A RU 96124423 A RU96124423 A RU 96124423A
Authority
RU
Russia
Prior art keywords
mass
carried out
alkaline solution
aqueous alkaline
bleaching method
Prior art date
Application number
RU96124423/12A
Other languages
Russian (ru)
Other versions
RU2109098C1 (en
Inventor
В.Г. Крунчак
В.Г. Ермолинский
Э.И. Евстигнеев
А.Т. Олейник
И.И. Ярмолинский
Original Assignee
Товарищество с ограниченной ответственностью "Сэтар"
Filing date
Publication date
Application filed by Товарищество с ограниченной ответственностью "Сэтар" filed Critical Товарищество с ограниченной ответственностью "Сэтар"
Priority to RU96124423A priority Critical patent/RU2109098C1/en
Priority claimed from RU96124423A external-priority patent/RU2109098C1/en
Application granted granted Critical
Publication of RU2109098C1 publication Critical patent/RU2109098C1/en
Publication of RU96124423A publication Critical patent/RU96124423A/en

Links

Claims (2)

1. Способ отбелки целлюлозы, включающий обработку исходной целлюлозной массы в две ступени, первую из которых осуществляют водным щелочным раствором, с отбором части водного щелочного раствора между ступенями обработки, последующую обработку массы кислородом при повышенных температуре и давлении, промывку массы и последующее озонирование полученной массы, отличающийся тем, что вторую ступень обработки исходной целлюлозной массы проводят водой в количестве, обеспечивающем концентрацию массы 7 - 15%.1. The method of bleaching cellulose, including processing the initial pulp in two stages, the first of which is carried out with an aqueous alkaline solution, with the selection of part of the aqueous alkaline solution between the treatment steps, the subsequent treatment of the mass with oxygen at elevated temperature and pressure, washing the mass and subsequent ozonation of the resulting mass characterized in that the second stage of processing the initial pulp is carried out with water in an amount providing a concentration of 7 to 15%. 2. Способ по п.1, отличающийся тем, что отбор части водного щелочного раствора осуществляют до концентрации массы 18 - 25%. 2. The method according to claim 1, characterized in that the selection of part of the aqueous alkaline solution is carried out to a mass concentration of 18 - 25%.
RU96124423A 1996-12-30 1996-12-30 Method of cellulose bleaching RU2109098C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU96124423A RU2109098C1 (en) 1996-12-30 1996-12-30 Method of cellulose bleaching

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU96124423A RU2109098C1 (en) 1996-12-30 1996-12-30 Method of cellulose bleaching

Publications (2)

Publication Number Publication Date
RU2109098C1 RU2109098C1 (en) 1998-04-20
RU96124423A true RU96124423A (en) 1998-09-20

Family

ID=20188586

Family Applications (1)

Application Number Title Priority Date Filing Date
RU96124423A RU2109098C1 (en) 1996-12-30 1996-12-30 Method of cellulose bleaching

Country Status (1)

Country Link
RU (1) RU2109098C1 (en)

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