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Chempatents Inc
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Chempatents Inc
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Publication date
Application filed by Chempatents IncfiledCriticalChempatents Inc
Priority to ES0219754ApriorityCriticalpatent/ES219754A1/en
Publication of ES219754A1publicationCriticalpatent/ES219754A1/en
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Abstract
Process for obtaining terephthalic acid, characterized in that it comprises reacting for diisopropylbenzene with a liquid oxygen in the presence of a catalytic amount of a heavy metal catalyst and a liquid medium, at a temperature of the order of 150 to 275ºC and at a pressure manometric of the order of the atmospheric at 105 kg/cm. (Machine-translation by Google Translate, not legally binding)
ES0219754A1955-01-261955-01-26A procedure for the obtaining of tereftºlico acid (Machine-translation by Google Translate, not legally binding)
ExpiredES219754A1
(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 manufacture of monocicloolephines from the corresponding cycloparafins (Machine-translation by Google Translate, not legally binding)
A procedure for the obtaining by synthesis of 4-amino-3-isoxazolidone and its derivatives (Machine-translation by Google Translate, not legally binding)