目前美国还没有以副产品形式大规模生产铀。五十年代和六十年代初曾以磷酸盐工业的副产品形式回收过少数几吨铀。随着对铀需要量的日益增加及铀价格大幅度上涨,从磷酸盐中回收铀重新受到重视。同时也重新考虑了从班岩铜尾矿堆浸出液中回收铀的可能性。由于担心常规类型矿床铀资源的不足,故对其它低品位铀资源,如查塔努加页岩(含60ppm 铀),正在作重新估价。美国的大部分铀来自不含或只含少量的其它具有工业价值金属的砂岩型矿石。有些矿石含钒量高,要确保钒的回收。几乎所有矿石都含有微量其它金属,其中大部分在某个时期曾小规模回收过,或者研究了其回收的可能性。这些金属包括钼、铼、硒、铜、鈨、砷、汞、钍、锾、镤和镭。铀矿石加工厂应做好回收可能存在于铀矿石中的这些金属的准备。 At present, the United States has not mass-produced uranium by-product. A few tons of uranium have been recovered as a by-product of the phosphate industry in the 1950s and early 1960s. With increasing uranium demand and uranium prices rising sharply, uranium recovery from phosphate has received renewed attention. At the same time, the possibility of uranium recovery from the leachate of the Pan-Yan copper tailings heap is reconsidered. Concerns over the lack of uranium resources of conventional types of deposits are being re-evaluated for other low-grade uranium resources such as the Chattanooga shale (containing 60 ppm uranium). Most of the uranium in the United States comes from sandstone-type ore that contains no or only a few other metals of industrial value. Some ore containing high vanadium, to ensure the recovery of vanadium. Almost all ore contains trace amounts of other metals, most of which have been recovered on a small scale at a certain time, or the possibility of their recovery being studied. These metals include molybdenum, rhenium, selenium, copper, gallium, arsenic, mercury, thorium, 锾, 镤 and radium. Uranium ore processing plants should be prepared to recover these metals that may be present in uranium ores.