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本文介绍了17—115℃沥青铀矿合成的方法及对产品的鉴定结果。实验是在只有六价铀与硫代乙酰胺存在的非常简单的体系中进行的。合成的最低温度为17℃。沥青铀矿的结晶速度在不同的温度和pH条件下是不同的。温度越高,结晶速度越快。在酸性溶液中沥青铀矿结晶速度快,中性中较慢,碱性中最慢。但随着温度的提高,酸、中、碱性溶液结晶速度的差值迅速缩小。82℃时,无论酸、中、碱性溶液中的沥青铀矿均能在半小时内结晶出来。
This article describes the synthesis of 17-115 ℃ pitch uranium ore and the identification of the product results. The experiment was conducted in a very simple system where only hexavalent uranium and thioacetamide exist. The lowest synthesis temperature was 17 ° C. Asphalt uranium crystallization speed at different temperatures and pH conditions are different. The higher the temperature, the faster the crystallization rate. Bituminous uranium crystallizes faster in acidic solutions, slower in neutrality, and slower in alkalinity. However, with the increase of the temperature, the difference between the crystallization rates of the acid, medium and alkaline solutions rapidly decreases. At 82 ℃, the bitumen uranium ore in acid, medium and alkaline solution can all crystallize in half an hour.