Polution free pulping process using recycled wash effluent...

Details Polution free pulping process using recycled wash effluent... Polution free pulping process using recycled wash effluent...

D - Textiles, Paper

21

C

9/16.5

D21C 9/147 (2006.01) D21C 3/22 (2006.01) D21C 3/26 (2006.01) D21C 9/10 (2006.01) D21C 11/00 (2006.01)

Patent

CA 1222603

ABSTRACT OF THE DISCLOSURE There is disclosed a pollution free pulping process wherein a lignocellulosic material is subjected to various pulping and bleaching steps without the use of sulphur and chlorine. The system is a closed one thus minimizing energy and chemical requirements while permitting one to obtain a product having excellent physical properties.

510038

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