吸附電鍍廢水中黃金，廢電子提純黃金，金礦尾液中的黃金。

傳統(tǒng)上使用活性碳吸附金子。珍貴的金會被活性碳吸附于表面,再藉由洗滌或直接焚燒以回收金。

Conventionally activated carbon is used for extracting the gold from the mother liquor commonly contacted with beds of activated-carbon. The precious noble metal loaded on the activated carbon is recovered by elution or simply by incineration of the carrier at high temperature.

使用離子交換樹脂回收貴金屬比活性碳還具有多方面的優(yōu)勢, 因?yàn)榻逵商厥庵圃爝^程中, 我們可以在其結(jié)構(gòu)上的有效官能基上置入具有選擇性的離子,以選擇性的吸附此貴重金屬。

Ion exchange resins are more versatile substrates than activated carbons can be used, because specific functional groups can be afixed on the resin matrix, for better selectivity, during the synthesis. These resin can be tailor-made to improve the gold carrier features such as selectivity, resistance to poisoning by calcium or organic materials and loading capacity.

因此, 由于具有經(jīng)濟(jì)考慮優(yōu)勢, 離子交換樹脂普遍被使用于貴金屬回收。而大部份使用陰離子交換樹脂來交換吸附貴金屬。