发明名称 PROCESS FOR THE PREPARATION OF AROMATIC ACIDS
摘要 <p>A process for converting alkyl-substituted aromatic hydrocarbons, such as p-xylene or 2,6-dimethyl naphthalene to their corresponding dicarboxylic acids is disclosed, said process comprising contacting the alkyl-substituted aromatic hydrocarbon with a gaseous mixture containing oxygen, NOx, where x is 1 or 2, and an inert gas, and heating the resulting mixture at a temperature from 90 °C to 250 °C and at a pressure of from 300 psi to 2500 psi for a period of time sufficient to convert the alkyl substituents on the aromatic hydrocarbons to carboxyl groups.</p>
申请公布号 WO1999059954(A1) 申请公布日期 1999.11.25
申请号 US1999010959 申请日期 1999.05.19
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