Method of producing coniferous wood celluloses by the...

Details Method of producing coniferous wood celluloses by the... Method of producing coniferous wood celluloses by the...

D - Textiles, Paper

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D21C 3/00 (2006.01) D21C 1/06 (2006.01) D21C 3/06 (2006.01) D21C 3/10 (2006.01)

Patent

CA 1101616

ABSTRACT Method of producing spruce wood celluloses by the sulphite process on a magnesium basis, in which spruce wood hogged chips are pretreated with milk of magnesium hydroxide or with magnesium sulphate solution at room temperature in a pretreatment stage and, after intermediate storage, are decomposed with a magnesium bisulphite solution at pH values of around 4. -2-

301780

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