Methodology for production of solvent extraction isotherms for the simulation of extraction mineral processing unit operations

用于模拟萃取选矿单元操作的溶剂萃取等温线的生成方法

• 批准号: 490793-2015
• 负责人: Larachi, Faiçal
• 金额: $ 1.82万
• 依托单位: Université Laval
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=586615
• 关键词: Methodology; production; solvent; extraction; isotherms

Hydrometallurgy regroups the techniques used to extract valuable species or metals by dissolving their carrying matrix and to recover these valuable species from the obtained solution. The recovery of the valuable species often requires the use of techniques to selectively extract the valuable species, leaving unwanted ones in the solution. Solvent extraction is one approach to separate valuable species from waste ones. The purpose of this project is to assist SOUTEX in the use of simulation software for solvent extraction processes in the realm of mineral processing and hydrometallurgy. SOUTEX is a consulting engineering firm that provides support to the hydrometallurgical industries. The simulation software used by SOUTEX requires the user to provide input variables that are not readily available to SOUTEX. Owing to the expertise available at Laval University for the simulation of solvent extraction processes, SOUTEX has proposed to conduct a joint project to accelerate the learning process of the simulation package for solvent extraction. More precisely, the solvent extraction simulation modules require the user to provide extraction isotherms for the metal species in the aqueous solution to be processed by solvent extraction. The estimation of the extraction isotherms for a given solvent extraction process requires a significant amount of laboratory test work that can be effectively reduced by the estimation of equilibrium constants of the solvent extraction chemical reactions that can subsequently be used to generate the process isotherms. The proposed project should help developing a method to generate the extraction isotherm by means of equilibrium constants extracted from a minimum number of solvent extraction tests.

湿法冶金重新组合技术用于提取有价值的物种或金属溶解他们的携带 基质，并从所得溶液中回收这些有价值的物质。珍贵物种的恢复 通常需要使用技术来选择性地提取有价值的物种，将不需要的物种留在 溶液溶剂萃取是一种从废物中分离有价值物种的方法。这样做的目的 该项目是协助SOUTEX在溶剂萃取过程中使用模拟软件， 矿物加工和湿法冶金。 SOUTEX是一家为湿法冶金行业提供支持的咨询工程公司。的 SOUTEX使用的仿真软件要求用户提供不容易获得的输入变量 到SOUTEX。由于拉瓦尔大学拥有模拟溶剂萃取的专业知识 过程，SOUTEX已提议进行一个联合项目，以加速模拟的学习过程 用于溶剂萃取的包装。更准确地说，溶剂萃取模拟模块要求用户 提供待通过溶剂处理的水溶液中的金属物质的萃取等温线 萃取对于给定的溶剂萃取过程，萃取等温线的估计需要 大量的实验室测试工作，可以通过平衡估计有效地减少 溶剂萃取化学反应的常数，随后可用于产生该过程 等温线拟议的项目应有助于开发一种方法来产生的提取等温线的手段 从最少数量的溶剂浸提试验中提取的平衡常数。