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1. 发明申请

WO2016120394A1 METHOD FOR REMOVING CYANIDE COMPOUNDS FROM WASTEWATER 审中-公开
标题翻译：从废水中去除氰化物化合物的方法
公开(公告)号：WO2016120394A1
公开(公告)日：2016-08-04
申请号：PCT/EP2016/051822
申请日：2016-01-28
申请人： UNIVERSITEIT VAN AMSTERDAM
发明人： OULEGO BLANCO, Paula , SHIJU, Nirappurackal Raveendran , ROTHENBERG, Gad
IPC分类号： C02F1/72 , C02F101/18 , C02F101/20 , C02F101/38 , C02F103/16
CPC分类号： C02F1/725 , C02F1/722 , C02F2101/18 , C02F2101/203 , C02F2101/38 , C02F2103/16
摘要： The invention pertains to a method for reduction of the cyanide content of a metals-containing wastewater fraction by contacting a wastewater fraction comprising cyanide compounds and metal compounds, with a metals content of at least 100 ppm, with hydrogen peroxide and a solid catalyst comprising at least 50 wt. % of a copper salt with a solubility of less than 10 exp (- 5) mol/liter (in water at 20°C, 1 atm). It has been found that when a solid catalyst comprising at least 50 wt. % of a copper salt with a solubility of less than 10 exp (- 5) mol/liter (in water at 20°C, 1 atm) is used in combination with hydrogen peroxide in the reduction of the cyanide content of a cyanide compound-containing wastewater fraction having a metal compound content of at least 100 ppm, a method is obtained which shows an efficient removal of cyanide compounds from a difficult to treat fraction.
摘要翻译：本发明涉及一种通过使包含氰化物化合物和金属化合物的金属含量至少为100ppm的废水部分与过氧化氢和固体催化剂接触来降低含金属废水部分的氰化物含量的方法，所述固体催化剂包括至少50wt。溶解度小于10埃（-5）摩尔/升（在20℃的水中，1个大气压）的铜盐的％。已经发现，当固体催化剂包含至少50wt。使用溶解度小于10的铜盐（ - 5）摩尔/升（在20℃的水中，1个大气压）的铜盐与过氧化氢的组合与氰化物化合物的氰化物含量的降低相结合，含有金属化合物含量为至少100ppm的含水废水馏分，得到显示从难处理馏分中有效除去氰化物的方法。

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