Process for delignifying lignocellulose material

Details Process for delignifying lignocellulose material Process for delignifying lignocellulose material

D - Textiles, Paper

21

C

9/26

D21C 3/20 (2006.01) D21C 3/22 (2006.01)

Patent

CA 1174810

Case 1-13074/+ Process for delignifying lignocellulose material Abstract of the disclosure A process for delignifying lignocellulose material by a chemical pulping process. The process is carried out at a liquor ratio of 1:3 to 1:50, in the presence of a thioamide, thiocarbamide, thio- carbamate or dithiocarbamate, advantageously with the concurrent use of an organic cyclic compound containing keto and/or hydroxyl groups, in particular anthraquinone or 2-methyl-anthraquinone.

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