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: Gillett, Cindy
• 金额: $ 5.46万
• 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: 2016
• 资助国家: 加拿大
• 起止时间: 2016-01-01 至 2017-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=607481
• 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.

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成本。