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2Â¥2010-01-22 17:56:00
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С¼×009(½ð±Ò+20):thanks 1-26 10:16
С¼×009(½ð±Ò+20):thanks 1-26 10:16
| When the effect of the amount of ammonium bicarbonate on the leaching process of RE2(CO3)3 was studied, the stirring rate was 70r/min, the reaction temperature was 50 ¡æ, and the amount of ammonium bicarbonate is 1.4, 1.5, 1.6 and 1,7 times more than the theoretical value, respectively. It was demonstrated that the leaching rate of RE2(CO3)3 increased with increasing amount of ammonium bicarbonate, and also increased with increasing time at the same amount of ammonium bicarbonate (Table 2). The results were dealed with using solid membrane diffusion model, which are shown in Fig.5. |
3Â¥2010-01-25 18:24:13














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