Process of making cellulose pulp

Details Process of making cellulose pulp Process of making cellulose pulp

D - Textiles, Paper

21

C

9/14

D21C 3/02 (2006.01) D21C 3/12 (2006.01) D21C 3/22 (2006.01)

Patent

CA 1262503

Abstract The invention relates to a process of manufacturing cellulose pulp from wood by division with sulphite cooking liquor containing additions of sulphide and in the presence of a quinonoide or hydroquinonoide compound. According to the invention, the mole ratio between sulphide and sulphite shall amount to 0,01-0,2, prefer- anyl 0,05-0,15. suitably 0,08-0,12.

492593

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