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Bayer AG
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Bayer AG
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Priority claimed from DEF29997Aexternal-prioritypatent/DE1103902B/de
Application filed by Bayer AGfiledCriticalBayer AG
Priority to FR840932ApriorityCriticalpatent/FR1270297A/fr
Application grantedgrantedCritical
Publication of FR1270297ApublicationCriticalpatent/FR1270297A/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
C01B17/90—Separation; Purification
C01B17/901—Recovery from spent acids containing metallic ions, e.g. hydrolysis acids, pickling acids
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Chemical & Material Sciences
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Organic Chemistry
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Inorganic Chemistry
(AREA)
FR840932A1959-12-031960-10-12Procédé de récupération d'acide sulfurique concentré à partir d'acides résiduaires dilués contenant des sels
ExpiredFR1270297A
(fr)
Procédé pour la récupération d'acide sulfurique à partir de solutions aqueuses contaminées par des matières organiques, en particulier pendant la purificationdes benzols bruts