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Bayer AG
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Bayer AG
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Publication of ES270536A1publicationCriticalpatent/ES270536A1/en
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Abstract
Process for the manufacture of sulfuric anhydride of the sulphurous content in the gases of roasting of pyrites, according to the methods of contact in several steps, with intermediate absorption of the sulfuric anhydride, characterized in that in the treatment of the gases of roasting, purified and cooled, with an S02 content of 9-12% and preferably 10%, the catalysis is verified in three steps and an intermediate absorption of the sulfuric anhydride before the last catalytic step, whereby the contact process can be carried out without contribution of external heat, not being heated the last step of contact with the roasting gases of the penultimate. (Machine-translation by Google Translate, not legally binding)
ES0270536A1960-09-171961-09-16Procedure for the manufacture of sulfuric anhydride (Machine-translation by Google Translate, not legally binding)
ExpiredES270536A1
(en)
Procedure for the absorption of nitrogen gases which are originating in the combustión of ammonia in highly concentrated nitric acid (Machine-translation by Google Translate, not legally binding)
Procedure for refrigerating and washing turns and combustión gases with sulfurous anhydride content (Machine-translation by Google Translate, not legally binding)
A procedure for the catalytic transformation of gases containing so2 in so3 and or sulfuric acid (Machine-translation by Google Translate, not legally binding)