Leaching of Nickel Copper Iron Sulfides in Cupric Chloride Media, Award in U.S. and Indian Currencies.

本项目旨在支持内华达大学里诺分校化学与冶金工程系Renato Bautista博士与印度孟买巴巴原子研究中心（BARC）萃取冶金部C.K. Gupta博士的合作研究。该项目是描述氯化铜浸出在复杂含镍硫化矿中的应用，其中镍主要存在于矿物千粒矿（NiS）和镍镍矿（NiFeS）中。实验工作将在BARC完成，数学模型将由内华达大学的团队开发。考察了不同参数对硫化镍浸出率的影响。从实验数据，包括它们的速率常数和活化能，推导出千粒石和戊粒石的溶解速率。数学模型将涵盖浸出反应和溶液中的同步反应。从实验工作和模型中获得的信息将应用于本地的硫化镍铜精矿。范围：该项目汇集了来自印度和美国的两位经验丰富的科学家，共同研究一个对美国和印度的材料加工工业具有重要意义的问题。这种合作符合美印合作项目的目标。

Description: This project is for support of cooperative research by Dr. Renato Bautista of the Department of Chemical and Metallurgical Engineering at the University of Nevada, Reno and Dr. C.K. Gupta of the Extractive Metallurgy Division of the Bhabha Atomic Research center (BARC) in Bombay, India. The project is to characterize the application of cupric chloride leaching to complex nickeliferous sulfide ores where the nickel is mainly present in the minerals millerite (NiS) and pentlandite (NiFeS). Experimental work will be done at BARC and mathematical modeling will be developed by the U. of Nevada team. The effect of different parameters on the rate of leaching of the nickel sulfides will be examined. The rate of dissolution of both millerite and pentlandite will be developed from the experimental data, including their rate constants and activation energies. The mathematical model will cover the leaching reactions and the simultaneous reactions in the solution phase. The information derived from the experimental work and the model will be applied to an indigenous nickel-copper sulfide concentrate. Scope: the project brings together two experienced scientists from India and the U.S. to work on a problem that has significant importance to the material processing industry in the U.S. and India. This collaboration meets the objective of the U.S.-India Cooperative Program.