Method for producing 3-hydroxy-2-methylbenzoic acid
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United States of America Patent
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Issued Date -
Oct 6, 2005
app pub date -
Sep 15, 2004
filing date -
Mar 22, 2002
priority date (Note) -
Abandoned
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Abstract
The invention relates to a method for producing 3-hydroxy-2-methylbenzoic acid or solutions containing salts of 3-hydroxy-2-methylbenzoic acid, with naphthalene as the starting substance. Said method essentially comprises the following steps: sulfonation, reaction with alkalis at high temperatures and the expedient preparation of the resultant reaction mixture.
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