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BASF SE
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BASF SE
Badische Anilin and Sodafabrik AG
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Application filed by BASF SE, Badische Anilin and Sodafabrik AGfiledCriticalBASF SE
Publication of ES231939A1publicationCriticalpatent/ES231939A1/en
Low-Molecular Organic Synthesis Reactions Using Catalysts
(AREA)
Catalysts
(AREA)
Abstract
Process for obtaining cyclic bicarbonate acids by heating salts of other cyclic carbonic acids under conditions already known per se, under which they are converted into the salts of the carbonic acids to be obtained, advantageously in the presence of catalysts, characterized in that the salts obtained are treated, after the heat treatment, in solution with an acidic acid liberating material, especially carbon dioxide, advantageously under pressure and the liquid-solid matter mixture thus formed is mixed, if necessary afterwards of separating at least a part of the liquid, with the cyclic carbonic acids whose salts have served as initial material, or with their acid salts, if necessary, under the addition of a solvent, the carbonic acid liberated and the liquid phase left is separated, if necessary, together with the liquid separated from the mixture before adding carbonic acid, it is vaporized. The dry residue is then used to obtain bicarbonaceous acids. (Machine-translation by Google Translate, not legally binding)
ES0231939A1955-12-091956-11-15Procedure for the obtaining of cyclic bicarbonic acids (Machine-translation by Google Translate, not legally binding)
ExpiredES231939A1
(en)
Procedure for the use of maleic anhydride of a gaseous mixture containing this body and water (Machine-translation by Google Translate, not legally binding)
A procedure to take advantage of bleached or wasted mother waters, for the obtaining of useful substances that can be separated by distilling this water mothers (Machine-translation by Google Translate, not legally binding)
Procedure for the continuous manufacture of an extract of vegetable products in the form of dust (Machine-translation by Google Translate, not legally binding)