Apparatus for the treatment of lignocellulosic material

Solid material comminution or disintegration – Apparatus – Including means applying fluid to material

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241 28, 241 65, 241248, 241280, 241DIG14, B02C 2324

Patent

active

RE0318620

ABSTRACT:
The invention relates to the production of a wholly mechanical pulp of improved strength properties. The lignocellulosic material is fed into a substantially closed chamber where it is mechanically abraded under a power input of fifteen or more horsepower days per ton. During the abrading step, the material is maintained in an inert gaseous atmosphere of a pressure of ten to eighty psig, preferably twenty to forty psig.

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