首页>
外国专利>
EFFICIENT METHOD FOR DISPUTING CONTAINING CYANIDES OF GAS-WASTE WASTE AND WASTE WATER IN A METHOD FOR RECEIVING ALKALINE METAL CYANIDES
EFFICIENT METHOD FOR DISPUTING CONTAINING CYANIDES OF GAS-WASTE WASTE AND WASTE WATER IN A METHOD FOR RECEIVING ALKALINE METAL CYANIDES
展开▼
机译：一种回收碱性废金属氰化物方法中的废水和废水中含氰化物的有效方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
The invention relates to a method for producing alkali metal cyanides as solids, comprising the steps: i) an absorption step in the form of the absorption of hydrogen cyanide from a syngas containing hydrogen cyanide in an aqueous alkali metal hydroxide solution; ii) a preparation step for the waste gases containing cyanide that have accumulated in step i); iii) a crystallization step in the form of the introduction of the alkali metal cyanide solution into an evaporative crystallizer; iv) a condensation step for the vapour containing cyanide that has accumulated in step iii) to obtain a vapour condensate containing cyanide; v) a recirculation step, in which the vapour condensate containing cyanide that has been obtained in step iv) is used as an aqueous liquid in step ii).
展开▼
