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澳大利亚原子能委员会在研究浸出阿利盖特河地区的铀矿石时,进行了一项用过一硫酸代替软锰矿作氧化剂的可行性的对比试验研究计划。对产自Ranger、Nabarlek、Koongarra和Jabi—Luka的铀矿石的间歇浸出试验结果表明,铀的浸出率不受所选用的氧化剂种类的影响,但用过-硫酸作氧化剂时,浸出的酸耗可降低15—25％,中和尾矿液的石灰需要量可减少20一30％。 在间歇浸出研究的基础上作了处理能力为400克矿/时的4级的连续浸出试验。对比的连续浸出试验结果证实了间歇浸出试验得出的用过一硫酸作氧化剂时试剂消耗量可降低的结论。 受上述实验室试验结果的鼓午,Interox化学试剂有限公司作了用过一硫酸作氧化剂的工厂试验。结果表明,在工厂中,试剂的节省量与实验室的试验结果相同或更多些。工厂试验过程中还发现,用过一硫酸作氧化剂在操作上有许多优点。
The Australian Atomic Energy Commission conducted a comparative pilot study on the feasibility of using monosulfuric acid instead of pyrolusite as oxidant in the study of leaching uranium ore from the Aligate area. Intermittent leaching tests on uranium ores from Ranger, Nabarlek, Koongarra and Jabi-Luka show that the leaching rate of uranium is unaffected by the type of oxidizer selected, but when spent sulfuric acid is used as the oxidizer, leaching acidity can be Reduce 15-25%, the lime needs of the tailing fluid can be reduced by 20 to 30%. Based on batch leaching studies, a four-stage continuous leaching test with a processing capacity of 400 gm ore / hour was performed. The comparative continuous leaching test results confirm the conclusion that the consumption of reagents can be reduced when using monosulfuric acid as oxidant in the intermittent leaching test. By drumming the results of the above laboratory tests, Interox Chemical Co., Ltd. made a factory test using monosulfate as an oxidant. The results show that the savings in reagents at the factory are the same as or greater than the lab test results. During the factory test, it was also found that the use of monosulfate as an oxidizer has many advantages in operation.