106.
(11) Patent number: 2151229
(46) Date of publication: 20.06.2000
(51) Int. Cl.7: D 21 C 3/02, 3/20
(21) Application number: 99122812/12
(22) Application date: 01.11.1999
(71) Applicant:
Institut khimii i khimicheskoj tekhnologii SO RAN
(72) Inventor:
Kozlov I.A.,
Kuznetsov B.N.,
Babkin V.A.,
Chernjak M.Ju.
(73) Proprietor:
Institut khimii i khimicheskoj tekhnologii SO RAN
(98) Mail address:
660036, g.Krasnojarsk, Akademgorodok, Institut khimii i khimicheskoj tekhnologii SO RA
(54) CELLULOSE PRODUCTION COMPOSITION
(57)
FIELD: paper-and-pulp industry. SUBSTANCE: cooking liquor for cellulose that can be used for manufacturing different-destination fibrous materials contains sodium hydroxide, elementary sulfur, hydrazine hydrate, 1,4-dihydro-9,10- dihydroxyanthracene. EFFECT: increased yield and reduced content of residual lignin. 1 tbl, 8 ex
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