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Hoechst AG
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Hoechst AG
Farbwerke Hoechst AG
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Publication date
Application filed by Hoechst AG, Farbwerke Hoechst AGfiledCriticalHoechst AG
Publication of ES253611A1publicationCriticalpatent/ES253611A1/en
Process for obtaining ammonium thiosulfate by treatment with elemental sulfur solutions or suspensions containing ammonium sulfite at temperatures of about 80º and more, precipitation and separation of ammonium thiosulfate from the solution after the conclusion of the reaction, characterized by the fact that during the entire manufacturing process maintains a concentration of free ammonia, from which the ammonium thiosulfate is precipitated only partially in the solution and, after separation of the ammonium thiosulfate that has been precipitated, the remaining mother liquor is returned to the process and that contains ammonium thiosulfate. (Machine-translation by Google Translate, not legally binding)
ES0253611A1950-02-251959-11-20Procedure for the obtaining of ammonium tiosulfate (Machine-translation by Google Translate, not legally binding)
ExpiredES253611A1
(en)
Procedure for the manufacture of potassic sulphate and chloride, separately, from kainita and carnalita (Machine-translation by Google Translate, not legally binding)
Procedure for the separation of ammonia, sulfylide acid and cyanidic acid from gases that contain them. (Machine-translation by Google Translate, not legally binding)
A procedure for the obtaining of sodium sulfate, water-free, during the manufacture of viscosa elements (Machine-translation by Google Translate, not legally binding)
Procedure for the manufacture of potassa sulphate and ammonium potassic fertilizers from kainithic minerals with partial recovery of mgo (Machine-translation by Google Translate, not legally binding)
A procedure to reduce the trends to the formation of terrones of potassic sulfate or of ammonium sulphate (Machine-translation by Google Translate, not legally binding)
Procedure for the separation of ammonia, sulfylide acid and cyanidic acid from gases that contain them. (Machine-translation by Google Translate, not legally binding)