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METHOD OF PRODUCING CONCENTRATE OF ADIPIC ACID AND SODIUM ALKALINE FROM ALKALINE DRAINS OF CAPROLACTAM PRODUCTION
METHOD OF PRODUCING CONCENTRATE OF ADIPIC ACID AND SODIUM ALKALINE FROM ALKALINE DRAINS OF CAPROLACTAM PRODUCTION
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机译:从生产己内酰胺的碱性废水中生产浓酸和碱性钠的方法。
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摘要
FIELD: chemistry.;SUBSTANCE: electrolysis is carried out in a two-chamber cell, before the electrolysis, the effluents are mixed with sulfuric acid to separate into the aqueous and organic phases, when the acidity of the aqueous phase reaches 20-30 g/l in terms of sulfuric acid, the aqueous phase is separated and fed to the anode chamber of a two-chamber cell, the phase is used as an adipic acid concentrate.;EFFECT: increasing the content of adipic acid in its concentrate while reducing operating costs by reducing the energy consumed and the consumption of cation-exchange membranes in the regeneration of alkali.;2 ex
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