2011•Fine and Specialty ChemicalsRequires access

Research on technology of preparation m-cresol by diazotization and hydrolysis

Guangming Li

Abstract

m-Cresol was preparated from m-toluidine by diazotization and hydrolysis.The effects of process parameters of diazotization and hydrolytic operational sequence on the yield of m-cresol were studied by orthogonal design and single factor design.The process parameters included the concentration of sulphuric acid solution,addition rate of NaNO_2,addition rate of diazonium salt.Then the optimum conditions were determined.The yield of m-cresol reached 84.04%and the purity exceeded 98%under the optimium conditions.

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Key concepts: Hydrolysis, Yield (engineering), Chemistry, Salt (chemistry), Cresol, Salt solution, Process (computing), Organic chemistry