Chelator

Chelator

Chelation has a wide range of applications in chemical research and industrial production.
In the chemical industry and industrial production process, adding chelating agents to make metal ions generate chelates with completely different properties is the main method to reduce and control the concentration of metal ions.
Chelates are widely used in mineral flotation process, hydrometallurgy, extraction and separation of metal elements, catalytic synthesis of substances, softening of water, electroplating process, pharmaceutical industry, dyeing process, etc.
Chelates are widely used in chemical, mechanical and deinked pulp bleaching where hydrogen peroxide and hypochlorous acid are used as bleaching agents. Some chelating agents can be used medically for the treatment of poisoning such as lead and mercury. 

The specific uses are as follows:
1. It can effectively inhibit the catalytic decomposition of hydrogen peroxide and hypochlorous acid bleaching agents caused by metal ions, improve bleaching efficiency, save bleaching liquid, and reduce bleaching costs.
2. It has a strong ability to capture and disperse Fe3+ ions, prevent Fe3+ ions from reacting with phenolic groups in pulp to form dark complexes, protect fibers, improve pulp whiteness, and reduce pulp yellowing.
3. It can effectively prevent calcium, magnesium and other metal ions from chemically reacting to form precipitates during the pulp bleaching process, thereby preventing system equipment and pipeline scaling, and can gradually remove the original scaling of the rinsing system.
4. It has a certain dispersion ability, which can improve the dispersion of sodium silicate.
5. Protect pulp fibers and prevent NaOH peeling reaction from destroying fibers.
6. Compared with traditional DTPA, it has good cost performance.
7. Used for the separation and purification of metal elements, the dyeing of fabrics and the manufacture of organic pigments, etc.