通过Cyphos IL102/Solvesso 100使用基于伪乳液的条形分散膜操作来非分散提取 (VI)
1Centro Nacional de Investigaciones Metalurgicas (CSIC), Avda, Gregorio del Amo 8, 28040 Madrid, Spain.
Membranes
|June 26, 2024
概括
这项研究表明,使用带分散 (NDXSD) 和离子液Cyphos IL102.2.的非分散提取方法,有效地从酸性溶液中去除. 确定了有效的运输和质量转移的最佳条件.
科学领域:
- 环境化学环境化学
- 分离科学 分离科学
- 材料科学 材料科学 材料科学
背景情况:
- (VI) 是一种有毒的重金属污染物,需要有效的去除策略.
- 带分散式非分散式提取 (NDXSD) 为分离污染物提供了一种有前途的方法.
- 离子液体具有独特的特性,可用于提取过程.
研究的目的:
- 通过使用NDXSD,研究从酸性介质中去除 (VI).
- 为了评估在PVDF膜上支的离子液体Cyphos IL102的性能.
- 为了确定运输的最佳运行条件.
主要方法:
- 在NDXSD的透细胞中使用微孔的PVDF膜.
- 在Solvesso 100中使用Cyphos IL102 (盐) 作为有机相.
- 研究的水力动力学参数 (动速度) 和化学参数 (度,载体度).
主要成果:
- 在特定条件下实现有效的运输:0.1M HCl,0.01g/L CrVI,1000分钟料,600分钟伪乳液,和2-10%的载体度.
- 估计的质量转移系数,包括散体扩散 (3.1·10-7厘米/秒) 和膜扩散 (6.1·10-8厘米/秒).
- 对其他离子液体和在有普通金属的情况下评估系统性能.
结论:
- 使用Cyphos IL102和PVDF膜的NDXSD是一种有效的去除方法.
- 优化的水力动力学和化学参数显著提高了 (VI) 运输效率.
- 该研究为流程设计和优化提供了有价值的质量传输数据.
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