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国内外从脉金矿石中提取金的方法主要有三种,即锌置换法、炭浆法和树脂矿浆法。某些脉金矿石品位低,不易浮选富集,目前国内外通用氰化钠浸出。锌粉置换法回收率低。直接从氰化矿浆中提金,可省去固液分离,提高金回收率3-7％以上。八十年代新型树脂矿浆法提金技术,合成的提金树脂,在矿浆体系中金容量可达7.5毫克/克干树脂,经三废治理,尾弃矿浆液相含氰量可达外排标准,约0.5毫克/升。树脂矿浆法的优点是1.吸附速度快,容量高;2.可在室温下进行解吸;3.树脂抗有机物中毒的能力强,适于处理含有机物或浮选药剂的矿浆,生产成本相应低;4.树脂耐磨性好,使用寿命长;5.树脂矿浆法对那些成份简单的氧化泥
There are three main methods to extract gold from vein gold ore at home and abroad, namely zinc displacement method, carbon slurry method and resin slurry method. Some veins of gold ore grade is low, not easy to float enrichment, the current universal sodium cyanide leaching. Low recovery of zinc powder replacement method. Direct extraction of gold from the cyanide pulp, solid-liquid separation can be omitted to improve gold recovery rate of 3-7%. In the 1980s, the new resin-leaching method of gold extraction technology, synthetic gold extraction resin, the gold content in the slurry system up to 7.5 mg / g dry resin, after three wastes treatment, the tailing slurry phase cyanide up to the standard, About 0.5 mg / liter. Resin slurry method has the advantages of 1. Adsorption speed, high capacity; 2. Can be desorbed at room temperature; 3. Resin anti-organic poisoning ability, suitable for processing organic or flotation reagents, pulp, the corresponding low production costs ; 4 resin wear resistance, long service life; 5 resin slurry method for those simple ingredients oxide mud