公开(公告)号：EP3050853A1

公开(公告)日：2016-08-03

申请号：EP15152980.7

申请日：2015-01-29

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50重量％的溶解度小于10埃（-5）摩尔/升的铜盐（在20℃的水中，1个大气压）。 已经发现，当组合使用包含至少50重量％的溶解度小于10埃（-5）摩尔/升（在20℃的水中，1个大气压）的铜盐的固体催化剂时 与过氧化氢相比，含有金属化合物含量至少为100ppm的含氰化合物的废水馏分的氰化物含量降低，得到了从难处理馏分中有效除去氰化物的方法。

公开(公告)号：EP2354119A1

公开(公告)日：2011-08-10

申请号：EP10152633.3

申请日：2010-02-04

申请人： Universiteit van Amsterdam

发明人： Shiju, Nirappurackal Raveendran

IPC分类号： C07C249/04

CPC分类号： C07C249/04 ,  C07C2601/08 ,  C07C2601/14 ,  C07C251/44 ,  C07C251/48

摘要： The present invention pertains to a process for preparing an oxime in which a carbonyl compound is reacted in the liquid phase with NH 3 and H 2 O 2 in the presence of a catalyst to form the corresponding oxime, characterised in that the catalyst comprises a catalytic component selected from the oxides of metals of group 5 and group 6. The use of a niobia catalyst is particularly preferred.
The process according to the invention is suitable for the manufacture of numerous oximes, in particular cyclohexasone oxime.

摘要翻译： 本发明涉及制备肟的方法，其中羰基化合物在液相中与NH 3和H 2 O 2在催化剂存在下反应形成相应的肟，其特征在于催化剂包含催化剂 组分选自第5组和第6组金属的氧化物。特别优选使用铌酸催化剂。 根据本发明的方法适用于制造许多肟，特别是环己酮肟。