引言由磷酸盐回收铀的工业方法是基于铀可从磷酸中萃职。目前,磷酸盐岩石中,大约仅有总产量的40%用于制造磷酸。因此,从磷块岩原料中选择性浸出铀,常被认为是作为磷酸盐工业付产品顺便回收铀的一种方法。已提供了各种浸出试剂,这些试剂是碳酸盐、碳酸氢盐、弱有机酸和稀无机酸。通常所报导的浸出率对于满足实际生产要求来说是太低了。 Introduction The industrial process for the recovery of uranium from phosphate is based on the fact that uranium can be extracted from phosphoric acid. At present, only about 40% of the total production of phosphate rock is used to make phosphoric acid. Therefore, the selective leaching of uranium from phosphorite raw materials is often considered as a way of recovering uranium by-products of the phosphate industry. Various leaching agents have been provided and these are carbonates, bicarbonates, weak organic acids, and dilute mineral acids. The reported rates of leaching are generally too low to meet actual production requirements.