Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From lignin – tannin – or derivative reactant
Patent
1996-05-02
1998-09-15
Nutter, Nathan M.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From lignin, tannin, or derivative reactant
530500, C08H 502, C07G 100
Patent
active
058079521
ABSTRACT:
A process for the production of low molecular weight phenolic compounds from lignins through the pyrolysis of the lignins in the presence of a strong base. In a preferred embodiment, potassium hydroxide is present in an amount of from about 0.1% to about 5% by weight, the pyrolysis temperature is from about 400.degree. C. to about 600.degree. C. at atmospheric pressure, and the time period for substantial completion of the reaction is from about 1-3 minutes. Examples of low molecular weight phenolic compounds produced include methoxyphenols, non-methoxylated phenols, and mixtures thereof.
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Goheen, David W., "Hydrogenation of Lignin by the Noguchi Process," Lignin Structures and Reactions, pp. 205-224, 150th Meeting of the American Chemical Society, Atlantic City, NJ, Sep. 13-14, 1965.
Bolkova et al. "Production of Carbons from Pressed Lignin," Poluch; Strukt. Svoistva Sorbentov (1971), 1, 22-6.
Zakis et al. Oxidation of Lignin amd Model Phenols by an Ammonia Solution of Hexacyanoferrate (III), Khim Drew. (1983)2, 56-9.
Hosoya, , Shoji. "Gasification of Lignin," Baliomasu Henkan Keikaku Kenyn Hokoku (1990), 23, 32-45.
Midwest Research Institute
Nutter Nathan M.
O'Connor Edna M.
Richardson Ken
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