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METHOD OF TREATING WASTE WATER FROM PRODUCTION OF ACRYLIC ACID AND/OR DERIVATIVES THEREOF

机译:从丙烯酸和/或其衍生物生产废水中进行处理的方法

摘要

FIELD: chemistry.;SUBSTANCE: invention can be used in treating waste water from production of acrylic acid and/or derivatives thereof, for example polyacrylic acid and acrylic esters. The method involves treating waste water with an alkali to pH not less than 12 and evaporating water in film conditions at high temperature. After treatment with alkali, the waste water is kept at high temperature for 6-12 hours and water is evaporated in film conditions, followed by condensation and distillation of low-boiling substances from the condensate.;EFFECT: method increases efficiency of treating waste water and enables to obtain water with low chemical absorption of oxygen.;4 ex
机译:技术领域本发明可用于处理丙烯酸和/或其衍生物,例如聚丙烯酸和丙烯酸酯的生产中的废水。该方法包括用碱处理废水至pH不小于12,并在高温下在成膜条件下蒸发水。用碱处理后,将废水在高温下保持6-12小时,并在薄膜条件下蒸发水,然后将冷凝物中的低沸点物质冷凝和蒸馏。效果:该方法可提高废水处理效率并能获得对氧气化学吸收低的水。; 4 ex

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