Creosote and a method for producing the same

Details Creosote and a method for producing the same Creosote and a method for producing the same

1975-03-31

1976-05-11

O'Keefe, Veronica

Mineral oils: processes and products

Phenolic or toxic oils

C07C 3700

Patent

active

039561003

ABSTRACT:
An improved creosote wood preservative is produced that has a reduced crystal content, a light color and that makes a creosote-pentachlorophenol preservative less corrosive to metals. This improved creosote is produced by mildly hydrogenating a conventional coal tar creosote to reduce the aromaticity index, I.sub.A, by 10-62%. This is accomplished by hydrogenating the creosote at a temperature in the range of 250.degree.-450.degree.C. in the presence of a sulfur resistant hydrogenation catalyst.

REFERENCES:
patent: 2291295 (1942-07-01), Harvey
patent: 2291296 (1942-07-01), Harvey
patent: 2291298 (1942-07-01), Harvey
patent: 2291300 (1942-07-01), Harvey
patent: 2291315 (1942-07-01), Harvey
patent: 2291330 (1942-07-01), Harvey
Chem. Ab. 72, 4431a, 1970.

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