在硫酸铵存在下硫氰酸铵-孔雀绿-水液-固体系浮选分离汞(Ⅱ)

Flotation Separation of Mercury (Ⅱ) with Ammonium Thiocyanate-Malachite Green-Water Liquid-Solid System in the Presence of Ammonium Sulfate

研究了在硫酸铵存在下硫氰酸铵－孔雀绿－水液－固体系浮选分离汞（Ⅱ）的行为及其与常见离子分离的条件。实验表明：在一定条件下，控制酸度条件，可实现Ｈｇ（Ⅱ）与常见离子Ｎｉ（Ⅱ）、Ｍｎ（Ⅱ）、Ｆｅ（Ⅱ）、Ｂｉ（Ⅲ）、Ｃｏ（Ⅱ）、Ａｌ（Ⅲ）、Ｃｒ（Ⅲ）、Ｃｄ（Ⅱ）分离，对合成水样及工业废水进行定量浮选分离测定，结果与双硫腙法相符。

The flotation separation behaviour of mercury (Ⅱ) with ammonium thiocyanate-malachite green-water liquid-solid system in the presence of ammonium sulfate and the conditions for the separation of mercury(Ⅱ) with other metal ions were studied. It shows that Hg(Ⅱ) can be Separated from Ni(Ⅱ)、Mn(Ⅱ)、Fe(Ⅱ)、Bi(Ⅱ)、 Co(Ⅱ)、Al(Ⅲ)、 Cr(Ⅲ)、Cd(Ⅱ)by flotation on certain condition. The method has been used for the flotation separation of Hg(Ⅱ) in the samples of synthetic water and industrial waste water, and the results agreed well with those by dithizone method.