Experimental Study on Factors Affecting the Recovery of Nickel from Spent Catalyst
Khalid MM and Athraa BA*
Chemical Engineering Department, Collage of Engineering, University of Nahrain, Iraq
- *Corresponding Author:
- Athraa BA
Chemical Engineering Department
/Collage of Engineering/University of Nahrain, Iraq
Tel: +964 770 716 0860
E-mail: [email protected]
Received Date: December 07, 2016 Accepted Date: December 20, 2016 Published Date: January 30, 2017
Citation: Khalid MM, Athraa BA (2017) Experimental Study on Factors Affecting the Recovery of Nickel from Spent Catalyst. J Powder Metall Min 6: 146. doi:10.4172/2168-9806.1000146
Copyright: © 2016 Khalid MM, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
In this study, the recovery of nickel from spent NiMo/Al2O3 catalyst was investigated using 1 L stainless steel autoclave batch reactor. The effect of leaching process parameters such as temperature (40-80°C), time (1-4 h), pressure (1-3 bar), average particle size (69-550 μm) and agitation speed (400-600 min-1) on nickel extraction. The nickel percent in spent catalyst was found about 2.18%. The results obtained show that recovery of about 94% of nickel from spent catalyst was accomplished under the following conditions: temperature 80°C, pressure 1 bar, average particle size 200 μm, agitation speed 600 min-1, nitric acid concentration 40% and solid to liquid ratio1:50 after 4 h.