Microwave assisted atmospheric acid leaching of nickel from laterite ore

被引：0

作者：

CHE XiaokuiabSU XiuzhucCHI Ruancand YU Junxiac a College of Resources and Civil EngineeringNortheastern UniversityShenyang China b Division of Mineral ResourcesMetallurgy MaterialsGeneral Research Institute for Nonferrous MetalsBeijing China c Key Laboratory for Green Chemical Process of the Ministry of Education of China Hubei Key Lab of Novel Reactor Green Chemical TechnologyWuhan Institute of TechnologyWuhan China ^{[110004
,100088
,430073
]}

机构：

来源：

Rare Metals | 2010年 / 29卷 / 03期

关键词：

microwave; sulphuric acid-leaching; laterite ore; nickel;

D O I：

暂无

中图分类号：

TF815 [镍];

学科分类号：

080603 ;

摘要：

The recovery of nickel from laterite ore with sulphuric acid under the effect of microwave irradiation was studied.The experimental results indicated that the extraction rate of nickel was influenced by reaction time,sulphuric acid concentration,and temperature,especially by microwave power.The 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,respectively.Under the optimal conditions,the nickel recovery could reach approximately 90.8%,which was higher than that obtained by conventional water bath heating.Kinetic experiments showed that the leaching of nickel in a sulphuric acid medium was controlled by chemical reaction occurring on the surface of laterite ore.The apparent activation energy was 38.9 kJ/mol.Microwave heating technology is efficient,clean,and easy to control and facilitate continuous processing of materials.

引用

页码：327 / 332

页数：6

共 14 条

[1] 红土矿的微波浸出研究 [J].

翟秀静 ;

符岩 ;

李斌川 ;

衣淑立 ;

李应荣 .

有色矿冶, 2008, (05) :21-24

[2] Recovery of Co(Ⅱ) and Ni(Ⅱ) from hydrochloric acid solution of alloy scrap [J].

申勇峰 ;

薛文颖 ;

牛文勇 .

Transactions of Nonferrous Metals Society of China, 2008, (05) :1262-1268

[3]

Phase transformation in reductive roasting of laterite ore with microwave heating[J]. 畅永锋,翟秀静,符岩,马林芝,李斌川,张廷安.Transactions of Nonferrous Metals Society of China. 2008(04)

[4] 红土矿资源特点和火法冶金工艺分析 [J].

张友平 ;

周渝生 ;

李肇毅 ;

李维国 .

铁合金, 2007, (06) :18-21+40

[5]

An Application of Microwave Pre-oxidation in Improving Gold Recovery of a Refractory Gold Ore[J]. 黄建辉.Rare Metals. 2000(03)

[6]

Hydrometallurgical route to recover molybdenum, nickel, cobalt and aluminum from spent hydrotreating catalysts in sulphuric acid medium[J] . Ivam Macedo Valverde,Jéssica Frontino Paulino,Julio Carlos Afonso.Journal of Hazardous Materials . 2008 (2)

[7]

Atmospheric acid leaching of nickel laterites review[J] . R.G. McDonald,B.I. Whittington.Hydrometallurgy . 2008 (1)

[8]

Bacterial leaching of nickel laterites using chemolithotrophic microorganisms: Identifying influential factors using statistical design of experiments[J] . Geoffrey S. Simate,Sehliselo Ndlovu.International Journal of Mineral Processing . 2008 (1)

[9]

Recovery of copper, nickel and cobalt from acidic pressure leaching solutions of low-grade sulfide flotation concentrates[J] . Kun Huang,Qi-wei Li,Jing Chen.Minerals Engineering . 2007 (7)

[10] Microwave heating behaviour of nickeliferous limonitic. laterite ores [J].

Pickles, CA .

MINERALS ENGINEERING, 2004, 17 (06) :775-784

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