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苏联最近公布一项关于从铬铁矿和含铬铁矿矿石中分离铂族金属的方法。铬铁矿是与过氧化钠(重量比1:2)一起熔炼。熔炼温度为575±25℃,时间30分钟。接着用水处理熔融物,加酸中和和酸化。溶液加热;加入0.1克锡箔,使橘色溶液变成绿色,然后加入0.3克AH—2φH阴离子交换剂;混合物在加热1.5小时条件下静置;加水稀释一倍;吸附剂与溶液分离,并进行洗涤。往过滤器的湿沉积物
The Soviet Union recently released a method for separating platinum group metals from chromite and chromite ore. Chromite is smelted with sodium peroxide (1: 2 by weight). Melting temperature of 575 ± 25 ℃, time 30 minutes. The melt is then treated with water, acid neutralized and acidified. The solution was heated; 0.1 g of tinfoil was added to turn the orange solution green; then 0.3 g of AH-2? H anion exchanger was added; the mixture was allowed to stand for 1.5 hours with heating; doubles with water; the adsorbent was separated from the solution and subjected to washing. Wet sediment towards the filter