What Is Heavy Metal Chelation?
Heavy metal chelating agents are often called heavy metal ion precipitating agents, heavy metal trapping agents, etc.
Heavy metal chelator
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- Heavy metal chelator, also commonly called
- Heavy metal chelator is a chemical agent that chelate strongly with heavy metal ions, widely used in
- --------- Electroplating industry
- --- electronics industry
- Nonferrous metals and steel smelting industry
- Photo Lab and Film Printing Factory
- --- chemical industry
- Waste incineration plant
- Battery Factory
- It can chemically react with various heavy metal ions such as Cu2 +, Cd2 +, Hg2 +, Pb2 +, Mn2 +, Ni2 +, Zn2 +, Cr3 +, etc. in the range of room temperature and a wide range of pH conditions, and quickly generate insolubility in a short time Chemicals with low water content and flocculent precipitates that can be easily removed by filtration to achieve the removal of heavy metal ions from water are called heavy metal chelating agents.
- Good heavy metal chelating agents due to their strong chelating properties, the reaction can not only be carried out at room temperature and a wide range of pH conditions, but also not affected by the concentration of heavy metal ions. Even if the treated wastewater contains complex components, various heavy metal ions in the wastewater can be precipitated at one time, so that the wastewater reaches the discharge standard.
- There are two main synthetic pathways of heavy metal chelating agents: one is to prepare monomers containing chelating groups through addition polymerization, polycondensation, stepwise polymerization, or ring-opening polymerization; the other is to use synthetic or natural high-scoring agents. It is synthesized by introducing a chain group with chelating function through polymer chemical reaction.
- At present, there are mainly two types of heavy metal chelating agents that are used in practical research: xanthates and dithiocarbamate derivatives (DTCs), and DTC derivatives are the most widely used.