Process for preparing m-alkylhydroxybenzene
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United States of America Patent
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Oct 2, 1984
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N/A
app pub date -
Nov 26, 1982
filing date -
Nov 27, 1981
priority date (Note) -
Expired
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Abstract
An improved process for preparing m-alkylhydroxybenzene which comprises heating alkylbenzene or an isomeric mixture of alkylbenzenesulfonic acid in the presence of sulfuric acid and an inorganic salt at a temperature of from 150.degree. to 210.degree. C. to form an isomeric mixture of alkylbenzenesulfonic acid which is rich in the m-isomer, selectively hydrolyzing the isomers of alkylbenzenesulfonic acid other than the m-isomer, and caustically fusing the unhydrolyzed alkylbenzenesulfonic acid.
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