ES299743A1 - Procedure for the preparation of isoteltaic acid and tereftelic acid (Machine-translation by Google Translate, not legally binding)
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Procedure for the preparation of isoteltaic acid and tereftelic acid (Machine-translation by Google Translate, not legally binding)
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Organic Low-Molecular-Weight Compounds And Preparation Thereof
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Abstract
Preparation process for isophthalic acid and terephthalic acid, comprising the heating of a mixture of meta-xylene or para-xylene, a cobalt catalyst for the oxidation of xylene, a solvent for the catalyst and 20 to 60%, based on the weight of xylene present, of an aliphatic aldehyde activator for the catalyst, at a temperature of 95 to 200º C under a pressure of 1 to 30 atmospheres while continuously maintaining oxygen in contact with the mixture in order to cause oxidation of the xylene in the corresponding dicarboxylic acid, and the separation of the dicarboxylic acid obtained from the reaction mixture. (Machine-translation by Google Translate, not legally binding)
ES299743A1963-05-201964-05-12Procedure for the preparation of isoteltaic acid and tereftelic acid (Machine-translation by Google Translate, not legally binding)
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(en)
Procedure for the preparation of catalyst support for the obtaining of maleic anhydride by the partial catalytic oxidation of benzene (Machine-translation by Google Translate, not legally binding)
Procedure for the ixidation of p-xylene, of methyl ester of p-toluil acid and of mixes of them. (Machine-translation by Google Translate, not legally binding)