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Verein Chemische & Metallurgische Prod
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Verein Chemische & Metallurgische Prod
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Application filed by Verein Chemische & Metallurgische ProdfiledCriticalVerein Chemische & Metallurgische Prod
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Publication of FR652440ApublicationCriticalpatent/FR652440A/fr
C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
C01B17/00—Sulfur; Compounds thereof
C01B17/69—Sulfur trioxide; Sulfuric acid
C01B17/74—Preparation
C01B17/76—Preparation by contact processes
C01B17/765—Multi-stage SO3-conversion
C01B17/7655—Multi-stage SO3-conversion with intermediate absorption
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Organic Chemistry
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Inorganic Chemistry
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Physical Or Chemical Processes And Apparatus
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FR652440D1927-05-051928-04-10Procédé de catalyse par contact pour la fabrication de l'anhydride sulfurique et de l'acide sulfurique
ExpiredFR652440A
(fr)