Ethanedioic acid, scandium(3+) salt (3:2) | 51407-18-2

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: Ethanedioic acid, scandium(3+) salt (3:2)
• 英文别名: oxalate;scandium(3+)
• CAS: 51407-18-2；13419-51-7
• 化学式: C6O12Sc2
• 分子量: 353.97
• InChiKey: OMMFSGNJZPSNEH-UHFFFAOYSA-H

计算性质

• 辛醇/水分配系数(LogP)：
  -10.55
• 重原子数：
  20
• 可旋转键数：
  0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  241
• 氢给体数：
  0
• 氢受体数：
  12

反应信息

• 作为产物：
  描述：

  草酸 、 硝酸铵 、 氢化钪 生成 Ethanedioic acid, scandium(3+) salt (3:2)
  参考文献：
  名称：

  Ion exchange method for the purification of scandium

  摘要：

  本发明揭示了一种从含钪和各种杂质的酸性溶液中纯化钪的方法。该方法涉及将酸性溶液与氢型螯合树脂混合形成浆料，并将浆料装填在短离子交换柱中。离子交换柱用矿酸冲洗，并通过经过二甘醇酸的柱来去除钪。含有钪的二甘醇酸随后通过氢型螯合树脂。当螯合树脂的流出液中钪的浓度达到预选水平时，收集二甘醇酸和钪的流出液。当流出液中钪的浓度低于预选水平时，停止收集。将收集的流出液通过强阳离子交换柱，其中收集钪。用去离子水冲洗强阳离子交换柱后，通过在强阳离子交换树脂中通入硝酸铵溶液来从柱中去除钪。通过加入草酸，从硝酸铵中沉淀出钪。将钪草酸沉淀物通过过滤收集并冲洗。将沉淀物在大约975°C下煅烧以形成氧化钪。此方法适用于从任何酸性可溶基质中恢复和纯化钪。

  公开号：

  US05019362A1

文献信息

• Ion exchange method for the purification of scandium
  申请人：GTE Laboratories Incorporated

  公开号：US05019362A1

  公开（公告）日：1991-05-28

  A process is disclosed for purifying scandium from an acid solution containing scandium and various impurities. The process involves mixing the acid solution with a chelating resin in the hydrogen form to from a slurry and packing the slurry in a short ion exchange column. The ion exchange column is rinsed with a mineral acid and the scandium is removed by passing diglycolic acid through the column. The diglycolic acid containing scandium is then passed through a chelating resin in the H form. When the scandium concentration in the effluent from the chelating resin reaches a preselected level the effluent of digylcolic acid and scandium is collected. Collection is stopped when the scandium concentration in the eluent falls below a preselected level. This collected eluent is passed through a strong cation exchange column where the scandium is collected. After rinsing the strong cation exchange column with deionized water, the scandium is removed from the column by passing a solution of ammonium nitrate through the strong cation exchange resin. The scandium is precipated from the ammonium nitrate by adding oxalic acid. The precipate of scandium oxalate is collected by filtration and rinsed. The precipate is calcined at approximately 975.degree. C. to form scandium oxide. This process is applicable to the recovery and purification of scandium from any acid soluble matrix.

  本发明揭示了一种从含钪和各种杂质的酸性溶液中纯化钪的方法。该方法涉及将酸性溶液与氢型螯合树脂混合形成浆料，并将浆料装填在短离子交换柱中。离子交换柱用矿酸冲洗，并通过经过二甘醇酸的柱来去除钪。含有钪的二甘醇酸随后通过氢型螯合树脂。当螯合树脂的流出液中钪的浓度达到预选水平时，收集二甘醇酸和钪的流出液。当流出液中钪的浓度低于预选水平时，停止收集。将收集的流出液通过强阳离子交换柱，其中收集钪。用去离子水冲洗强阳离子交换柱后，通过在强阳离子交换树脂中通入硝酸铵溶液来从柱中去除钪。通过加入草酸，从硝酸铵中沉淀出钪。将钪草酸沉淀物通过过滤收集并冲洗。将沉淀物在大约975°C下煅烧以形成氧化钪。此方法适用于从任何酸性可溶基质中恢复和纯化钪。