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《》 2005-01
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Study on Determination Method of Residual Acidity of Uranium Mineral

GONG Zhi-xiang~1, LUO Ming-biao~1, SONG Jin-ru~1, JIANG Xiao-liang~1, ZHOU Ren-hua~2(1.Applied Chemistry Department of East China Institute of Technology ,Fuzhou,JX 344000, China;2.Jian Xi uranium Mine  Smetting xorporation)  
A new method for the determination of residual acidity in leaching solution of uranium mineral has been prepared using K_2C_2O_4 as masking reagent. The effect of interfering ions such as U~(4+),Fe~(3+),Al~(3+) as so on can be ignored, which is superior to traditional methods of (NaPO_3)_6 and EDTA-Ca. And the process parameter is 7.0±2 g/L relying on the method of K_2C_2O_4-MgCl_2 . According to the method, the average leaching percent of uranium is more than percent 93 during four months testing. As a result, cost of consumption of sulfuric acid has been reduced, and economic effectiveness has been enhanced.
【CateGory Index】: TL212.4
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【Co-citations】
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