ES409538A3 - Procedure for the manufacture of ester dimethyl of the tereftal acid. (Machine-translation by Google Translate, not legally binding)
- Google Patents
Procedure for the manufacture of ester dimethyl of the tereftal acid. (Machine-translation by Google Translate, not legally binding)
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Eastman Kodak Co
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Eastman Kodak Co
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Priority to ES409538ApriorityCriticalpatent/ES409538A3/en
Publication of ES409538A3publicationCriticalpatent/ES409538A3/en
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Abstract
Process for the manufacture of terephthalic acid dimethyl ester comprising esterifying terephthalic acid with methanol at temperatures of from about 180ºC to about 260ºC and at pressures of from about 20 to about 110 atmospheres in the presence of an aromatic hydrocarbon, which is liquid to the room temperature, and having a boiling point below 250ºC at atmospheric pressure, the initial reaction mixture containing 10 volumes of methanol and aromatic hydrocarbon combined for each 1-2 parts by weight of terephthalic acid, including every 10 volumes of methanol and aromatic hydrocarbon combined between about 3.5 and about 7 volumes of aromatic hydrocarbon (ratio being based on the metric system. (Machine-translation by Google Translate, not legally binding)
ES409538A1972-12-121972-12-12Procedure for the manufacture of ester dimethyl of the tereftal acid. (Machine-translation by Google Translate, not legally binding)
ExpiredES409538A3
(en)
Procedure for the preparation of carboxylic acids 1-cycloundecomes isomers and their esters (Machine-translation by Google Translate, not legally binding)