发明名称 |
EFFICIENT METHOD FOR DECONTAMINATING WASTE GASES AND WASTE WATER CONTAINING CYANIDE IN A METHOD FOR PRODUCING ALKALI METAL CYANIDES |
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). |
申请公布号 |
WO2016202653(A1) |
申请公布日期 |
2016.12.22 |
申请号 |
WO2016EP62939 |
申请日期 |
2016.06.08 |
申请人 |
EPC ENGINEERING CONSULTING GMBH |
发明人 |
HENKEL, Jens;RASSBACH, Jürgen;TRENKMANN, Klaus |
分类号 |
C01C3/10 |
主分类号 |
C01C3/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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