Process for treating wood

Details Process for treating wood Process for treating wood

1982-09-22

1984-08-14

Camby, John J.

Drying and gas or vapor contact with solids

Apparatus

Vacuum

266132, F26B 1330, C21D 162

Patent

active

044648480

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 During the treatment the material is withdrawn from direct contact with the drying medium at several times.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: 1481338 (1924-01-01), Baldwin
patent: 2183463 (1939-12-01), Moreton
patent: 2535925 (1950-12-01), Hudson
patent: 2679111 (1954-05-01), Leischner
patent: 2860070 (1958-11-01), McDonald
patent: 2892261 (1959-06-01), Hutchinson
patent: 3830479 (1974-08-01), Knowles

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