System and apparatus for recovery of turpentine from...

Details System and apparatus for recovery of turpentine from... System and apparatus for recovery of turpentine from...

B - Operations, Transporting

01

D

202/114

B01D 3/38 (2006.01) C09F 3/02 (2006.01) D21C 11/00 (2006.01) D21C 11/10 (2006.01)

Patent

CA 2023817

ABSTRACT There has been provided a system and apparatus for recovering turpentine from a thermomechanical pulping process for making paper, which thermomechanical pulping process utilizes a plug screw conveyor for squeezing and feeding pulp chips. The thermomechanical pulping process is conventional. The liquid effluent from said plug screw conveyor contains an appreciable amount of turpentine. The liquid effluent is collected under superatmospheric pressure and flashed into vapor/liquid separator by releasing the pressure on the liquid. This vapor is condensed in a suitable condenser and the condensate collected in a decanter where the turpentine collects as a separate phase and the water also as a separate phase. Condensate from various vents in the conventional thermomechanical pulping process may be collected for more nearly complete removal of turpentine and other oleoresinone components.

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