Liquid-Liquid Custom Mixer-Settler Technology Development and Piloting

液-液定制混合沉降器技术开发和试点

• 批准号: 499490-2016
• 负责人: England, Andrea
• 金额: $ 3.65万
• 依托单位: Sheridan Institute of Technology and Advanced Learning
• 依托单位国家: 加拿大
• 项目类别: Applied Research and Development Grants - Level 2
• 财政年份: 2019
• 资助国家: 加拿大
• 起止时间: 2019-01-01 至 2020-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=690230
• 关键词: Liquid; Custom; Mixer; Settler; Technology

Hatch, a global multidisciplinary engineering company, provides services to a wide range of industries including the mining, mineral processing, and metals industry. The GDP contribution of this sector in Canada was about $52.6 billion in 2012. Liquid-liquid extraction is an important unit operation in the mining and mineral processing industry. In liquid-liquid extraction, the transfer of a solute (metal) takes place by contacting two immiscible liquids, usually water and an organic solvent. The metal is transferred from the aqueous phase to the organic phase by a means of an extractant. Disadvantages of conventional technologies in the metal extraction industry include the use of mechanical agitators that generate a wide range of droplet size, increase in residence time, large inventories of expensive organic solvent, and large settler tanks. Furthermore, the use of large volumes of organic solvents increase plant footprint, decrease plant safety, increase environmental impact and, due to environmental regulations, it is necessary to recover the organic solvent, which introduces additional costs to the process.In this proposed NSERC Applied Research Development Grant, Sheridan College and Hatch Ltd. are seeking to solve these problems by designing and constructing a custom-made mixer and settler to improve mixing performance and minimize separation time. By using this novel technology, higher specific treatment rates are expected resulting in significant reductions in plant footprint and organic inventories. Furthermore, this proposed project will result in a novel technology with lower capital and operational costs and improved safety.Sheridan will benefit by engaging students from the Faculty of Applied Science and Technology's Chemical Engineering Department and Mechanical Engineering Department to solve real industrial engineering problems and by creating employment-ready graduates.

Hatch 是一家全球性多学科工程公司，为采矿、选矿和金属行业等众多行业提供服务。 2012年该行业对加拿大GDP的贡献约为526亿加元。液-液萃取是采矿和选矿行业的重要单元作业。在液-液萃取中，溶质（金属）的转移是通过两种不混溶的液体（通常是水和有机溶剂）接触而发生的。通过萃取剂将金属从水相转移至有机相。金属萃取行业传统技术的缺点包括使用机械搅拌器产生各种尺寸的液滴、增加停留时间、大量昂贵的有机溶剂和大型沉降罐。此外，大量有机溶剂的使用增加了工厂占地面积，降低了工厂安全性，增加了环境影响，并且由于环境法规，有必要回收有机溶剂，这给工艺带来了额外的成本。在这项拟议的 NSERC 应用研究开发资助中，谢里登学院和 Hatch 有限公司正在寻求通过设计和建造定制的混合器和沉降器来解决这些问题，以提高混合性能和 最大限度地减少分离时间。通过使用这种新技术，预计更高的特定处理率将显着减少工厂占地面积和有机库存。此外，该拟议项目将产生一种资本和运营成本更低、安全性更高的新技术。谢里登将通过让应用科学与技术学院化学工程系和机械工程系的学生参与解决实际的工业工程问题并培养就业准备好的毕业生而受益。