This study contains research on the sorption separation of scandium, zirconium, and titanium from acidic sulfate solutions by a novel monofunctional Purolite RUA21207 ion exchange resin with primary amino groups. The kinetic and equilibrium performance of Sc, Zr, Ti sorption has been investigated. The results revealed that sorption favored at 25 g L⁻¹ H₂SO₄ in solution when the initial scandium concentration had been no more than 0.9 g L⁻¹. Zirconium and titanium could be selectively eluted from the loaded resin with the solutions of 150 g L⁻¹ KHF₂ and 50 g L⁻¹ HCl, respectively.

In this work, the scandium concentrate generated from acid waste of titanium white production has been dissolved in 25 g L⁻¹ H₂SO₄. Then, the solution has been passed through a column loaded with Purolite RUA21207 resin. Purification of scandium by 147 times that of zirconium and more than twice that of titanium have been achieved. Purolite RUA21207 resin has high potential application in the purification of scandium concentrate from Zr and Ti by sorption and definitely can be used for providing high purity scandium oxide.

本研究包含使用具有伯氨基的新型单官能 Purolite RUA21207 离子交换树脂从酸性硫酸盐溶液中吸附分离钪、锆和钛的研究。研究了 Sc、Zr、Ti 吸附的动力学和平衡性能。结果表明，当初始钪浓度不超过0.9 g L ^{-1时，溶液中25 g L -1} H ₂ SO ₄有利于吸附。锆和钛可以分别用 150 g L ^-1 KHF ₂和 50 g L ^-1 HCl 的溶液从加载的树脂中选择性洗脱。

在这项工作中，钛白生产的酸性废物产生的钪精矿已溶解在 25 g L ^-1 H ₂ SO ₄中。然后，溶液通过装有 Purolite RUA21207 树脂的柱子。已实现对钪的提纯率是锆的 147 倍，钛的两倍以上。Purolite RUA21207树脂在吸附提纯Zr和Ti钪精矿方面具有很大的应用潜力，绝对可以用于提供高纯度氧化钪。