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V NAUTCHNO I GORNOMETALLURGITC
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V NAUTCHNO I GORNOMETALLURGITC
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Application filed by V NAUTCHNO I GORNOMETALLURGITCfiledCriticalV NAUTCHNO I GORNOMETALLURGITC
Priority to ES0306639ApriorityCriticalpatent/ES306639A1/en
Publication of ES306639A1publicationCriticalpatent/ES306639A1/en
Process for purifying the concentrated sulfuric acid, for separating the mercurial impurities, by forming insoluble mercury combinations, then separating the formed precipitate, especially by filtration, characterized essentially by obtaining insoluble combinations of mercury by agitation of the acid sulfuric with elemental sulfur, at a temperature of 80 to 90º C, preferably for 1 to 2 hours. (Machine-translation by Google Translate, not legally binding)
ES0306639A1964-11-231964-11-23Procedure for purification of concentrated sulfuric acid. (Machine-translation by Google Translate, not legally binding)
ExpiredES306639A1
(en)
Process for the purification of metalurgic gases resulting in the pyrometallurgical treatment of mercury metals or other provenience, containing the anhydride of sulfuric acid, by means of extraction of mercury
Procedure for the manufacture of fertilizers from waste liquors in an acid treatment of aluminum production. (Machine-translation by Google Translate, not legally binding)
A method of purifying impured aqueous solutions containing vitamin b12, and variants of the same (Machine-translation by Google Translate, not legally binding)