Nickel powders recycled from invar scrap by magnesiothermic reduction

J Nanosci Nanotechnol. 2014 Dec;14(12):9037-41. doi: 10.1166/jnn.2014.10064.

Abstract

A study on the recovery of nickel from Fe-Ni alloy scrap was conducted using molten magnesium by dissolving only Ni component and then removing Mg using vacuum distillation method. The recovering faction of nickel higher than 99% was achieved at temperatures above 1,073 K and 99.5% of purity level of nickel was successfully obtained under vacuum degree of 10(-5) torr at temperatures above 1,273 K. The purity, phase, and recovery rate of nickel were examined by scanning electron microscopy, elemental analyser, and X-ray diffraction.

Publication types

  • Research Support, Non-U.S. Gov't