Process for treating wood

Details Process for treating wood Process for treating wood

1981-10-14

1983-10-04

Camby, John J.

Drying and gas or vapor contact with solids

Apparatus

With means to treat gas or vapor

34 138, 34 165, F26B 300, F26B 700, F26B 504

Patent

active

044070764

ABSTRACT:
Impregnated wood and other impregnated cellulose based materials are dried in high boiling drying media, drying oil, under reduced pressure. During the treatment the material is withdrawn from direct contact with the drying medium at several times. The absorption of oil in the materials can hereby be controlled. Materials of different qualities and origin can be dried with good results and the oil absorption does not have to be made dependent on the penetration depth of the impregnating solution. An autoclave for drying of wood according to this process preferably has a rectangular inner cross section and is provided with means for lifting and lowering the materials. Preferably a lifting table or frame.

REFERENCES:
patent: 2535925 (1950-12-01), Hudson
patent: 2860070 (1958-11-01), McDonald

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