ES330923A1 - A method for the esterification of tereftal acid with a glycool alcohil. (Machine-translation by Google Translate, not legally binding)
- Google Patents
A method for the esterification of tereftal acid with a glycool alcohil. (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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ExxonMobil Oil Corp
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Mobil Oil Corp
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Publication of ES330923A1publicationCriticalpatent/ES330923A1/en
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Abstract
A method for the esterification of terephthalic acid with an alcohol glycol, comprising heating, in a first stage, a molar ratio of terephthalic acid with at least 1.2 proportions of the glycol and 0.01% by weight of the acid, of a base volatile organic at a temperature between 240º C and 320º C and at a pressure above the vapor pressure of the glycol until they have been esterified from 75% to 85% acid acid groups, and maintain the reaction mixture from the first stage, in a second step, at a temperature between 240º C and 320º C at a pressure lower than that of the first stage until at least 95% of the acid groups of the acid have been esterified. (Machine-translation by Google Translate, not legally binding)
ES0330923A1966-06-241966-09-06A method for the esterification of tereftal acid with a glycool alcohil. (Machine-translation by Google Translate, not legally binding)
ExpiredES330923A1
(en)
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