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通过测定磷酸三丁酯萃取铍时的分配系数,发见当NH_4CNS的浓度为1M,溶液的pH=3.0时,萃取几乎完全。当NH_4CNS浓度在0.3531M至0.7062M之间时,铍铝的分离系数约为9。另外本文介绍了应用煤油作稀释剂比用苯作稀释剂进行铍的萃取试验时萃取率可提高许多。通过试验还初步断定萃取反应可能是:B~(++)(水)+ZCNS~-(水)+2TBP有Be(CNS)_2·2TBP(有)
By measuring the distribution coefficient of tributyl phosphate extraction beryllium, we see that when the NH4CNS concentration of 1M, the solution pH = 3.0, the extraction is almost complete. The separation factor of beryllium aluminum is about 9 when the concentration of NH_4CNS is between 0.3531M and 0.7062M. In addition, this article describes the use of kerosene as a diluent than the benzene as a diluent beryllium extraction test can improve the extraction rate. It is also preliminary concluded by the experiment that the extraction reaction may be as follows: B ~ (++) (water) + ZCNS ~ (water) + 2TBP with Be (CNS) _2.2TBP