Chelating resin

Chelating resin is a kind of high molecular material which has the function of crosslinking with metal ions form multi-coordination complex. Compared with ion exchange resin, and chelating resin binding force strength with the metal ion chelating resin is stronger, and has better selectivity, it can be widely used for separation recycling of all kinds of metal ions, split of amino acid and hydrometallurgy industry, pollution prevention and control and so on. Especially in ionic membrane caustic soda, widely using amino phosphonic acid type and iminodiacetic acid type chelating resin, which to extract the Ca2 +, magnesium 2 + , Sr2 + and etc harmful ions from the saturated brine, in order to make secondary brine and meet the technological requirements of ionic membrane.