[HTML][HTML] Characterization and kinetics of alumina leaching from calcined Akpugo kaolinite for potential aluminum recovery

IA Nnanwube, OD Onukwuli - South African Journal of Chemical …, 2023 - Elsevier
The kinetics study on alumina leaching from calcined Akpugo kaolinite was considered in
this study. The shrinking core model and other relevant kinetic models were used for kinetic …

[HTML][HTML] Assessment of Owhe kaolinite as potential aluminium source in hydrochloric acid and hydrogen peroxide solutions: kinetics modeling and optimization

IA Nnanwube, M Keke, OD Onukwuli - Cleaner Chemical Engineering, 2022 - Elsevier
In this study, the effectiveness of hydrochloric acid and hydrogen peroxide binary solution as
lixiviant for alumina recovery from Owhe kaolinite is investigated by kinetic and optimization …

Assessment of Amagunze microcline for alumina recovery in nitric acid and hydrogen peroxide solutions and kinetic study

IA Nnanwube, OD Onukwuli… - Canadian Metallurgical …, 2023 - Taylor & Francis
The leaching of alumina from Amagunze microcline in nitric acid/hydrogen peroxide binary
solution was examined in this study. The parameters considered in the study include …

Oxidative leaching of Akpugo Kaolinite for alumina recovery and kinetic modeling

IA Nnanwube, OD Onukwuli - Journal of Sustainable Metallurgy, 2022 - Springer
In this work, the kinetics of alumina recovery from Akpugo kaolinite in nitric acid and
hydrogen peroxide binary solution are investigated. Parameters considered in the study …

Kinetics of sphalerite dissolution for potential zinc recovery via oxidative leaching

IA Nnanwube, OD Onukwuli… - Canadian Metallurgical …, 2024 - Taylor & Francis
In this study, the leaching of zinc from sphalerite in nitric acid (HNO3)/hydrogen peroxide
(H2O2) binary solution was examined via kinetic study. The result showed that the amount of …

Kinetic analysis of alumina leaching from calcined Owhe kaolinite in HNO3 and H2O2 solution

IA Nnanwube, M Keke, OD Onukwuli - Reaction Kinetics, Mechanisms and …, 2024 - Springer
In this work, the feasibility of nitric acid (HNO3) and hydrogen peroxide (H2O2) binary
solution as a leachant for alumina leaching from Owhe kaolinite was examined. The …

Modelling and optimisation of zinc recovery from sphalerite using response surface methodology.

I Nnanwube, J Udeaja, O Onukwuli… - … Journal of Science …, 2020 - search.ebscohost.com
The effectiveness of a binary solution of acetic acid and sodium nitrate as a lixiviant for zinc
recovery from sphalerite has been investigated in this study. Response surface methodology …

[PDF][PDF] Ikechukwu Nnanwube, Judith Udeaja 2, Okechukwu Onukwuli 2, Victor Ugonabo 2 and

C Uwaleke - mijst.mju.ac.th
The effectiveness of a binary solution of acetic acid and sodium nitrate as a lixiviant for zinc
recovery from sphalerite has been investigated in this study. Response surface methodology …