Method for preparing an improved creosote wood preservative from

Details Method for preparing an improved creosote wood preservative from Method for preparing an improved creosote wood preservative from

1975-02-07

1976-06-01

Thomas, Jr., James O.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260621R, 208 2, C07C 3906, C07C 3728

Patent

active

039609693

ABSTRACT:
An improved creosote wood preservative that has a light color and that forms a non-sticky crud deposit is prepared from a coal tar creosote. The coal tar creosote is distilled to an end temperature in the range of 395.degree. to 410.degree.C. at atmospheric pressure. This distillation produces a distillate and a pitch residue. The distillate is contacted with at least 1% by weight of one or more of the following caustic compounds: alkali metal alcoholates of alkali metal hydroxides to produce the improved creosote wood preservative. The pitch residue from distillation is recovered and it is utilized in the production of various pitch products or in combustion for its fuel value.

REFERENCES:
patent: 2040100 (1936-05-01), Miller
patent: 2044764 (1936-06-01), Bywater

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