论文部分内容阅读
提出了乳状液膜体系自湿法冶锌系统中经一级同时分离镓和锗的新方法，建立了用 Ｐ２０４和 Ｃ５ － ７ 羟肟酸协同载体，ｐ Ｈ＝ ３ ．２ 的 Ｎ Ｈ４ Ｆ 溶液为内水相试剂，使 Ｇｅ４ ＋ 以溶液状态而 Ｇａ３ ＋ 则以 Ｇａ（ Ｏ Ｈ）３ 沉淀同步迁移进入内水相并分别回收的液膜体系，研究了影响 Ｇａ３ ＋ 、 Ｇｅ４ ＋ 迁移的各种因素，经正交实验确定了分离镓和锗的最佳液膜组成及操作条件，并用加入铁粉法除去了杂质 Ｆｅ３ ＋和 Ｃｕ２ ＋ 对 Ｇａ３ ＋ 、 Ｇｅ４ ＋ 迁移的干扰．所得镓和锗的回收率分别为９４ ．７ ％ 和９８ ．６ ％ ，纯度为９７ ．８ ％ 和９６ ．３ ％ ． Ｚｎ２ ＋ 离子损失仅２ ．１５ ％ ，回收镓和锗后的萃余液可返回冶锌系统．
A new method for simultaneous separation of gallium and germanium by first class emulsion hydrometallurgical systems was proposed. The synergistic carrier of P204 and C5 - 7 hydroxamic acid was established, p H = 3. 2 N H4 F solution is used as the internal water phase reagent to make the Ge4 + solution state and the Ga3 + solution migrate into the inner water phase with the simultaneous deposition of Ga (O H) 3 into the inner aqueous phase, and the effects of Ga3 + Ge4 + migration, the optimum liquid film composition and operating conditions for the separation of gallium and germanium were determined by orthogonal experiments and the interferences of the impurities Fe3 + and Cu2 + on the migration of Ga3 + and Ge4 + were removed by adding iron powder . The recoveries of gallium and germanium obtained were 94, respectively. 7% and 98. 6%, purity 97. 8% and 96. 3%. Zn2 + ion loss of only 2. 15%, the recovery of gallium and germanium after the raffinate can return to the smelting system.