Microwave assisted atmospheric acid leaching of nickel from laterite ore

作     者：CHE Xiaokui SU Xiuzhu CHI Ru'an YU Junxia 

作者机构：College of Resources and Civil Engineering Northeastern University Shenyang 110004 China Division of Mineral Resources Metallurgy & Materials General Research Institute for Nonferrous Metals Beijing 100088 China Key Laboratory for Green Chemical Process of the Ministry of Education of China & Hubei Key Lab of Novel Reactor & Green Chemical Technology Wuhan Institute of Technology Wuhan 430073 China 

出 版 物：《Rare Metals》 (稀有金属（英文版）)

年 卷 期：2010年第29卷第3期

页      面：327-332页

核心收录：

学科分类：081902[工学-矿物加工工程] 0819[工学-矿业工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

主　　题：microwave sulphuric acid-leaching laterite ore nickel 

摘      要：The recovery of nickel from laterite ore with sulphuric acid under the effect of microwave irradiation was *** experimental results indicated that the extraction rate of nickel was influenced by reaction time,sulphuric acid concentration,and temperature,especially by microwave *** results obtained from the experiments of orthogonal arrays showed that the optimum conditions of sulphuric acid concentration,reaction time,microwave power,and temperature were 25 vol.%,1.5 h,600 W,and 90°C,*** the optimal conditions,the nickel recovery could reach approximately 90.8%,which was higher than that obtained by conventional water bath *** experiments showed that the leaching of nickel in a sulphuric acid medium was controlled by chemical reaction occurring on the surface of laterite *** apparent activation energy was 38.9 kJ/*** heating technology is efficient,clean,and easy to control and facilitate continuous processing of materials.