从红泥中提取的固体-液体提取过程的动态建模:酸性成分,接触时间和温度的影响
Diana Daminescu1, Narcis Duteanu1, Mihaela Ciopec1
1Faculty of Industrial Chemistry and Environmental Engineering, Polytechnica University of Timişoara, Victoriei Square, No. 2, 300006 Timişoara, Romania.
Materials (Basel, Switzerland)
|November 14, 2023
概括
这项研究模拟了从工业红泥废物中提取 (Sc(III)) 的酸性提取. 第二阶动力模型准确地描述了Sc(III) 提取机制,有助于废物回收和资源利用.
科学领域:
- 工业化学 工业化学 工业化学
- 环境科学 环境科学
- 材料科学 材料科学 材料科学
背景情况:
- 工业发展产生大量的废物,包括来自生产的红泥.
- 红色的泥是高度性的,它的危险性质是有争议的,尽管它含有诸如等有价值的元素.
- 提取提供了一种有前途的方法,用于从复杂的废物流中分离和缩元素.
研究的目的:
- 评估从红色泥土中提取 (Sc(III)) 和其他元素的固体-液体酸提取的动力建模.
- 调查各种参数对提取动力学的影响.
- 确定最适合用于描述Sc (III) 提取的动力模型.
主要方法:
- 使用盐酸 (HCl),酸 (HNO3) 和硫酸 (H2SO4) 的10%,20%和30%度进行固体-液体酸提取.
- 研究的动力参数:固体:液体比,初始酸度,接触时间和温度.
- 应用一级和二级运动模型来评估提取动力学和质量转移机制.
主要成果:
- 第二阶动力模型有效地描述了从红色泥土中提取Sc(III) 的机制.
- 确定了影响提取效率的关键运动参数.
- 提供了有关酸提取过程中涉及的质量转移机制的见解.
结论:
- 酸提取,特别是通过二次动力学来描述,是从红色泥土中提取的可行方法.
- 这些发现可以设计和优化大规模的红泥加工,以回收有价值的元素.
- 这项研究有助于可持续的工业废物管理和资源利用.
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