Non-isothermal microwave leaching kinetics andabsorption characteristics of primary titanium-rich materials

来源期刊：中国有色金属学报(英文版)2010年第4期

论文作者：夏洪应 彭金辉 牛浩 黄孟阳 张正勇 张泽彪 黄铭

文章页码：721 - 726

Key words：primary titanium-rich material; non-isothermal kinetics; microwave absorption characteristic

摘    要：

Abstract:

The non-isothermal leaching kinetics of primary titanium-rich material by microwave heating was investigated, and the temperature-pressure curves of leaching system and microwave absorption characteristics of mixture solutions before and after leaching were measured. The research of non-isothermal kinetics was evaluated by the leaching rate of Fe and the total apparent velocity equation of the non-isothermal kinetics of leaching for primary titanium-rich material by microwave heating was obtained. It is shown from the temperature-pressure curves that the high temperature and high pressure of closed leaching system are favorable to the enhancement of the leaching rate of Fe. Microwave absorption characteristics of mixture solutions before and after leaching show that there are abrupt changes of microwave absorption characteristics for 15% HCl solution and the mixture solution after leaching by 20% HCl.

基金信息：the National Basic Research Program of China