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Priority to ES206350ApriorityCriticalpatent/ES206350A3/en
Publication of ES206350A3publicationCriticalpatent/ES206350A3/en
Process for the purification of sands for the manufacture of glass by separating the ferrous impurities characterized in that, with the impure sands and water, a thick paste is formed which is conditioned by the addition of cooperating agents consisting of a substantially insoluble and unsaponifiable oil; hydrocarbon of at least twelve carbon atoms and an alkali and whose paste thus conditioned is diluted and subjected to frothy flotation, the ferric impurities of the silica being removed by flotation and the purified vitrifiable sands remaining as residue. (Machine-translation by Google Translate, not legally binding)
ES206350A1952-11-181952-11-18Procedure of purification of sand for glass manufacture (Machine-translation by Google Translate, not legally binding)
ExpiredES206350A3
(en)
Procedure for the obtaining of rich products in oxygenated compounds through the hydrogenation of carbon oxide (Machine-translation by Google Translate, not legally binding)
Procedure of simultaneous and subsequent flotation separation of the blenda and the calamina (Machine-translation by Google Translate, not legally binding)