阅读说明：本技术 黄钾铁矾废物的有效利用 (Effective utilization of jarosite waste ) 是由 维诺德·秦塔马尼·玛尔什 于 2020-04-28 设计创作，主要内容包括：一种用于从黄钾铁矾废物中回收金属以用于其有效利用的方法,其中硝酸对黄钾铁矾废物的处理提取滤液中的铅、镉、铁、铜、镍、锌、铝、锰、钴、镁和钙的硝酸盐；硫酸对从步骤(a)获得的残余物的处理提取滤液中的呈硫酸亚铁、硫酸铝、硫酸锌和硫酸钙的形式的金属；以及碱对从步骤(a)获得的残余物的处理提取滤液中的呈硅酸钠和铝酸钠的形式的金属。在黄钾铁矾废物中作为硫酸盐/硅酸盐存在的银在硝酸、硫酸或碱中不被提取。因此,剩余的残余物富含浓度为至少2000ppm的银,其中银可以是容易地可回收的并且具有良好的商业价值。(A process for recovering metals from jarosite waste for effective use thereof, wherein the treatment of the jarosite waste with nitric acid extracts nitrates of lead, cadmium, iron, copper, nickel, zinc, aluminium, manganese, cobalt, magnesium and calcium in the filtrate; treatment of the residue obtained from step (a) with sulphuric acid extracts metals in the form of ferrous sulphate, aluminium sulphate, zinc sulphate and calcium sulphate in the filtrate; and treatment of the residue obtained from step (a) with alkali extracts metals in the form of sodium silicate and sodium aluminate in the filtrate. Silver present as sulphate/silicate in jarosite waste is not extracted in nitric acid, sulphuric acid or alkali. Thus, the remaining residue is enriched with silver at a concentration of at least 2000ppm, where silver can be easily recoverable and has good commercial value.)