Year1
- 粒度：
- 0.3-1.2
- 湿度：
- 47%
- 交换容量：
- 2.0meq/mL
Product details
Recycling uses Dusheng ion exchange resin to recover gold from chemical solutions
Traditionally, activated carbon has been used to absorb gold. The precious gold will be adsorbed on the surface by activated carbon, and then the gold can be recovered through washing or direct incineration.
Using ion exchange resin to recover precious metals has many advantages over activated carbon because through a special manufacturing process we can place selective ions on the effective functional groups of its structure to selectively adsorb this precious metal.
Due to its economic advantages, ion exchange resin is commonly used in precious metal recovery. Most use anion exchange resin to exchange and adsorb precious metals.
In the process of extracting gold from chemical compounds, gold will exist in the form of anionic gold and is then exchanged and recovered through anion exchange resin with strong alkali or weak alkali. Such as ? (strong base) and ? (weak base).
Application of strong base ion exchange resin This type of strong base anion resin has quaternary ammonium functional groups, and can be used in high-value solutions The reaction mechanism of adsorption by exchanging the counter ions of chloride ions is as follows
The adsorbed gold is washed out by stronger anion resin or other chemical reactions. Usually the most economical alternative reaction is to use Use zinc chloride or thiolate to wash out the gold as follows
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