Manganese Removal from Sulfuric Acid Leach Solutions of Nickel Laterite Ores

Gaw, Daryl Corbin

Gaw D 2020.pdf (1.897Mb)

Access Status

Open access

Authors

Gaw, Daryl Corbin

Date

2020

Supervisor

Richard Alorro

Type

Thesis

Award

MPhil

Metadata

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Faculty

Science and Engineering

School

WASM: Minerals, Energy and Chemical Engineering

URI

http://hdl.handle.net/20.500.11937/81026

Collection

Curtin Theses

Abstract

An oxidative precipitation technique using potassium permanganate was explored for the removal of manganese from pregnant leach solution (PLS) generated from the pressure acid leaching (PAL) of nickel laterite ores. The results revealed that the right combination of pH and molar ratio is important in order to achieve maximum removal of manganese (II) with minimum nickel (II) and cobalt (II) losses.