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Stamicarbon BV
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Stamicarbon BV
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Publication of ES214963A2publicationCriticalpatent/ES214963A2/en
A process for the disintegration of clays rich in silicic acid, by prior calcination thereof at temperatures between about 900 and 1100º c, preferably at 1000ºC and a consecutive treatment with alkali, especially sodium hydroxide, characterized in that the treatment is carried out with a alkali liquor of more than 20% alkali, calculated as hydroxide, preferably about 30%, at temperatures between 70 and 100º c, preferably at boiling temperature, for a relatively short time, preferably 15 to 30 minutes, after which the the residue obtained is still treated by the disintegration process by sintering. (Machine-translation by Google Translate, not legally binding)
ES0214963A1953-04-251954-04-24
A METHOD OF PREPARING MACRO-MOLECULAR ORGANIC PRODUCTS WITH WEAKLY BASIC PROPERTIES
ExpiredES214963A2
(en)
Process for the production of anhydrous potassium magnesium sulfate material with low hygroscopicity from hydrated potassium magnesium sulfate material
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Procedure for the manufacture of synthetic detergents, based on sodium tripolyphosphate produced (in situ). (Machine-translation by Google Translate, not legally binding)
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Procedure for the continuous production of macropolimeros products of epsilºn caprolactama. (Machine-translation by Google Translate, not legally binding)
Procedure for escindir d, 1-treo-1-p-nitrofenil-2-amino-1,3-propanodiol in the optical antiphodes (Machine-translation by Google Translate, not legally binding)
Method of procurement in state of great purity of salts of vitamin acids of basic antibiotics of the species estreptomyces. (Machine-translation by Google Translate, not legally binding)