Archives of Metallurgy and Materials

Institute of Metallurgy and Materials Science of Polish Academy of Sciences
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PREPARATION OF NICKEL POWDERS BY REDUCTION OF NICKEL HYDROXIDE USING THE TAYLOR FLUID FLOW

  • I.-J. PARK (ADVANCED MATERIALS AND PROCESSING CENTER, INSTITUTE FOR ADVANCED ENGINEERING (IAE)) ;
  • D.-W. KIM (ADVANCED MATERIALS AND PROCESSING CENTER, INSTITUTE FOR ADVANCED ENGINEERING (IAE)) ;
  • G.-H. KIM (ADVANCED MATERIALS AND PROCESSING CENTER, INSTITUTE FOR ADVANCED ENGINEERING (IAE)) ;
  • H.-J. CHAE (ADVANCED MATERIALS AND PROCESSING CENTER, INSTITUTE FOR ADVANCED ENGINEERING (IAE)) ;
  • H.-C. JUNG (ADVANCED MATERIALS AND PROCESSING CENTER, INSTITUTE FOR ADVANCED ENGINEERING (IAE))
  • Published : 20180000
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Abstract

In this study, Ni(OH)2 was synthesized by the continuous reaction by the Taylor fluid flow and compared with those prepared from the conventional batch type reaction. The nickel powders were synthesized by reduction of Ni(OH)2 in an aqueous solution with hydrazine hydrate acting as the reductant. And then the characteristics of the nickel powder according to the synthesis method were compared. The average particle size of the synthesized Ni(OH)2 using Taylor reactor was generally decreased about 1.5~2.5 times more than the batch reaction. The nickel powders prepared by the batch reaction highly agglomerated with non-uniform particles. In the Taylor reaction, the agglomeration of particles was broken and uniform nickel powder was produced.

Keywords

Acknowledgement

This study is a research project funded by the Ministry of Trade, Industry and Energy in 2016 and supported by the Korea Institute of Energy Technology Evaluation and Planning (KETEP). (Project Number: 20165020301150)