Treatment of wood-chips

Details Treatment of wood-chips Treatment of wood-chips

D - Textiles, Paper

21

C

9/13

D21C 3/12 (2006.01) D21C 1/00 (2006.01)

Patent

CA 1216709

11 ABSTRACT The present invention relates to the treatment of wood-chips for the manufacture of chemi-thermomechanical pulp, known as CTMP. After pre-steaming and pre-impregnation, washing and drying, but before final impregnation, pre-heating and refining, the wood-chips are kept at an intermediate stage at a temperature of not less than 50°C for a period of at least 10 minutes.

445104

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