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Mitsui Petrochemical Industries Ltd
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Mitsui Petrochemical Industries Ltd
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Priority to ES389225ApriorityCriticalpatent/ES389225A3/en
Publication of ES389225A3publicationCriticalpatent/ES389225A3/en
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Abstract
An esterification process of terephthalic acid with the help of methanol at elevated temperatures and pressures, characterized in that the esterification is carried out at a temperature higher than 215º c, by acting at the most 20 moles and, preferably, less than 10 moles of methanol on 1 mole of terephthalic acid. (Machine-translation by Google Translate, not legally binding)
ES389225A1971-03-131971-03-13A procedure for esterification of tereftal acid. (Machine-translation by Google Translate, not legally binding)
ExpiredES389225A3
(en)
Procedure for obtaining a new derivative of the 3,4,5 trimetoxibenzoic acid and its salts. (Machine-translation by Google Translate, not legally binding)
Procedure for the obtaining of a condensation product of phenylbutazone with p-amino salicilico acid. (Machine-translation by Google Translate, not legally binding)
A procedure for the preparation of 5-fluor-2-methyl-1- (p-metilsulfinilbenciliden) -3-indenil acetic acid. (Machine-translation by Google Translate, not legally binding)