用离子交换树脂吸附金是从矿石中回收金的一种湿法冶金方法。用树脂从矿浆中吸附金的特点是:矿浆液相中金的含量低,在未达到平衡之前吸附剂饱和的速度非常慢(大约需要数百个小时)。产生上述情况的原因有二:(1)吸附过程中矿浆量大,而添加的吸附剂少,致使吸附剂在整个吸附柱内分布不均;(2)吸附剂需要与矿浆有更长的接触时间。 Adsorption of gold with ion exchange resins is a hydrometallurgical method of recovering gold from ores. Adsorption of gold from the pulp using resin is characterized by low levels of gold in the slurry phase and very slow (approximately hundreds of hours) of adsorbent saturation until the equilibrium is not reached. There are two reasons for this: (1) the amount of ore is large during the adsorption process, and the addition of less adsorbent results in uneven distribution of the adsorbent throughout the adsorption column; (2) the adsorbent needs longer contact with the pulp time.