Process for the manufacture of synthetic smoking materials

Details Process for the manufacture of synthetic smoking materials Process for the manufacture of synthetic smoking materials

1976-10-20

1978-03-21

Michell, Robert W.

Tobacco

Cigar or cigarette making

Including cooperating surfaces to induce rolling

A24D 118

Patent

active

040797422

ABSTRACT:
An improved process is provided for the manufacture of synthetic smoking materials. The process comprises the steps of:
(1) Pyrolyzing a cellulosic material at a temperature of from about 150.degree. C to about 400.degree. C, and preferably from about 175.degree. C to about 275.degree. C, under conditions such that from about 8 to about 40% and preferably from about 10 to 25% by weight of the cellulosic material is removed, and
(2) Thereafter subjecting the resulting pyrolyzed cellulosic material to extraction with a basic liquid, for example, liquid ammonia, amine or aqueous bases, preferably under conditions to swell the material, whereby from about 15 to about 40%, and preferably from about 20 to about 30%, of the weight of the pyrolyzed product is removed during the extraction.
Both steps should preferably be conducted in such a manner that the overall weight loss of the original cellulosic material is in the range of from about 25 to about 65%, preferably from about 30 to about 50%, whereby the resultant product has a tobacco-like brown color, is not brittle, and has improved smoking characteristics.

REFERENCES:
patent: 2907686 (1959-10-01), Siegel et al.
patent: 3548448 (1970-12-01), Morman et al.
patent: 4014349 (1977-03-01), Morman et al.

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