SU469782A1 - Cellulose Bleaching Method - Google Patents

Cellulose Bleaching Method

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Publication number
SU469782A1
SU469782A1 SU1648934A SU1648934A SU469782A1 SU 469782 A1 SU469782 A1 SU 469782A1 SU 1648934 A SU1648934 A SU 1648934A SU 1648934 A SU1648934 A SU 1648934A SU 469782 A1 SU469782 A1 SU 469782A1
Authority
SU
USSR - Soviet Union
Prior art keywords
bleaching method
cellulose
cellulose bleaching
chlorine dioxide
treatment
Prior art date
Application number
SU1648934A
Other languages
Russian (ru)
Inventor
Лидия Васильевна Зырянова
Захар Васильевич Данилин
Original Assignee
Ленинградский технологический институт целлюлозно-бумажной промышленности
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ленинградский технологический институт целлюлозно-бумажной промышленности filed Critical Ленинградский технологический институт целлюлозно-бумажной промышленности
Priority to SU1648934A priority Critical patent/SU469782A1/en
Application granted granted Critical
Publication of SU469782A1 publication Critical patent/SU469782A1/en

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Description

ваниЯМ ГОСТа № 5982-59 иа сульфитную вискозную целлюлозу (дл  содержание смолы и золы 0,2 и 0,06% -соответственно, содержание железа 10,0 мг/кг, белизна 90,0%;Vanium IG of state standard specification No. 5982-59 and sulfite viscose pulp (for resin and ash content of 0.2 and 0.06%, respectively, iron content 10.0 mg / kg, whiteness 90.0%;

дл  штапел  указанные величины составл ютfor staples, the indicated values are

0,3 и 0,08%, 20,0 мг/кг, 89,0% соответственно).0.3 and 0.08%, 20.0 mg / kg, 89.0%, respectively).

В таблице приведены результаты, полученНые при отбелке целлюлозы известным иThe table shows the results obtained by bleaching the known pulp and

предлагаемым способами.proposed ways.

Расход двуокиси хлора рассчитан по двуокиси хлора. Chlorine dioxide consumption is calculated using chlorine dioxide.

Предмет изобретени Subject invention

Способ отбелки целлюлозы с применением обработки целлюлозы двуокисью хлора и хлором , щелочаого облагораживани  и ооСледующей двухступенчатой гипохлоритной обработкой , отличающийс  тем, что, с цельюA method of bleaching cellulose using chlorine dioxide and chlorine treatment of cellulose, alkaline refining and the following two-step hypochlorite treatment, characterized in that

улучшени  качества целевого продукта « устранени  смол ных отложений, исходную целлюлозу перед двухступенчатой пипохлоритной обработкой подвергают обработке двуокисью хлора, шелочнОМу облагораживанию и обработке хлором.improving the quality of the target product, the removal of tar deposits, the initial cellulose is treated with chlorine dioxide, silk refining and chlorine treatment before two-stage pipochlorite treatment.

SU1648934A 1971-04-13 1971-04-13 Cellulose Bleaching Method SU469782A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1648934A SU469782A1 (en) 1971-04-13 1971-04-13 Cellulose Bleaching Method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1648934A SU469782A1 (en) 1971-04-13 1971-04-13 Cellulose Bleaching Method

Publications (1)

Publication Number Publication Date
SU469782A1 true SU469782A1 (en) 1975-05-05

Family

ID=20473042

Family Applications (1)

Application Number Title Priority Date Filing Date
SU1648934A SU469782A1 (en) 1971-04-13 1971-04-13 Cellulose Bleaching Method

Country Status (1)

Country Link
SU (1) SU469782A1 (en)

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