Precious Nickel Recovery from Palm Oil Mill Fuel Ash Waste (NiPOMFAW) Using Acidic Leaching Extraction (ALE)

Precious Nickel Recovery from Palm Oil Mill Fuel Ash Waste (NiPOMFAW) Using Acidic Leaching Extraction (ALE)

This paper demonstrates precious recovery of nickel from physical pre-treated raw palm oil mill fuel ash waste (POMFAW). The acidic leaching extraction (ALE) using sulphuric and hydrochloric acids agents were carried out in a bath stirrer flask. Process parameter effects of acid concentration, solu...

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Bibliographic Details
Main Authors: Said, N., Ahmad Shahroom, Mohd Shah, Malar V., Sivaguru, Syafiqah , A. Khairuddin, Hajar Athirah, M. Sukri, Aina A., Rahman
Format: Article
Language:English
English
Published: Trans Tech Publications, Switzerland 2016
Subjects:
TP Chemical technology
Online Access:http://umpir.ump.edu.my/id/eprint/13120/
http://umpir.ump.edu.my/id/eprint/13120/
http://umpir.ump.edu.my/id/eprint/13120/
http://umpir.ump.edu.my/id/eprint/13120/1/Precious%20Nickel%20Recovery%20from%20Palm%20Oil%20Mill%20Fuel%20Ash%20Waste%20%28NiPOMFAW%29%20Using%20Acidic%20Leaching%20Extraction%20%28ALE%29.pdf
http://umpir.ump.edu.my/id/eprint/13120/7/Abstract%20-%20Precious%20Nickel%20Recovery%20from%20Palm%20Oil%20Mill%20Fuel%20Ash%20Waste%20%28NiPOMFAW%29%20Using%20Acidic%20Leaching%20Extraction%20%28ALE%29.pdf
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Summary:This paper demonstrates precious recovery of nickel from physical pre-treated raw palm oil mill fuel ash waste (POMFAW). The acidic leaching extraction (ALE) using sulphuric and hydrochloric acids agents were carried out in a bath stirrer flask. Process parameter effects of acid concentration, solution pH and treatment time were investigated in the nickel recuperation. The highest nickel recovery (96.83%) was found by treatment time of 1 h, pH of 2.5 and hydrochloric acid concentration of 2.0 M. At the acids leaching higher than 2 M, the nickel recovery decreased. Results from acids leaching imply that nickel complex can be formed at substantial percentages within the acid concentration higher than 1 M. The hydrochloric acid provides impressive nickel compared sulphuric acid, and the POMFAW can be proposed as a substitute of non-renewable sources derived nickel for a promising material and the used ALE can be considered as a beneficial technique.

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