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Salzgitter AG
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Salzgitter AG
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Publication of ES269578A1publicationCriticalpatent/ES269578A1/en
A process for obtaining urea from carbon monoxide or gases that contain it, and ammonia, characterized in that the carbon monoxide or the gas that contains it, are transformed with elemental sulfur, at high temperatures and short residence times , in carbonyl sulphide, which, after cooling and adding ammonia, is passed over active carbon, in which the formation of urea takes place, forming at the same time hydrogen sulphide. (Machine-translation by Google Translate, not legally binding)
ES0269578A1961-08-051961-08-04A procedure for the manufacture of urea (Machine-translation by Google Translate, not legally binding)
ExpiredES269578A1
(en)
A procedure for the catalytic hydrogenation of a compound containing carbon and its corresponding catalyst (Machine-translation by Google Translate, not legally binding)
Procedure to prevent a black smoke precipitate from occurring in platinum networks or platinum alloys (Machine-translation by Google Translate, not legally binding)