[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 …

Optimization of zinc recovery from sphalerite using response surface methodology and particle swarm optimization

OD Onukwuli, IA Nnanwube - Periodica Polytechnica Chemical …, 2022 - pp.omikk.bme.hu
Hydrometallurgical leaching process has been identified as a viable procedure for
recovering metals of value from their matrices. The optimization of zinc recovery from …

[HTML][HTML] Modeling and optimization of galena dissolution in a binary solution of nitric acid and ferric chloride using artificial neural network coupled with genetic …

IA Nnanwube, OD Onukwuli - South African Journal of Chemical …, 2020 - Elsevier
In this research, the optimization of lead recovery from galena with a binary solution of nitric
acid and ferric chloride using response surface methodology (RSM), artificial neural network …

[HTML][HTML] DFT, Experimental and Optimization Studies on the Corrosion Inhibition of Aluminium in H2SO4 with Danacid as inhibitor

OD Onukwuli, IA Nnanwube, FO Ochili… - Results in Engineering, 2024 - Elsevier
The inhibitive action of expired danacid toward the dissolution of aluminium in 1 MH 2 SO 4
was examined in this study via gravimetric, electrochemical, and theoretical method via …

Modeling and optimization of zinc recovery from enyigba sphalerite in a binary solution of acetic acid and hydrogen peroxide

IA Nnanwube, JN Udeaja… - Sigma Journal of …, 2020 - dergipark.org.tr
This work focused on the modeling and optimization of zinc recovery from sphalerite in a
binary solution of acetic acid and hydrogen peroxide. The sphalerite sample was …

Optimization of colour pigments removal from palm oil using activated ogbunike kaolinite

IA Nnanwube, VN Okafor, JI Obıbuenyı… - Sigma Journal of …, 2020 - dergipark.org.tr
Response surface methodology (RSM) and genetic algorithm (GA) were employed to
determine the optimum conditions for the removal of pigments from palm oil using Ogbunike …

Experimental and statistical modelling on copper recovery from low-grade mixed sulphide-oxide ore by direct leaching

B Harichandan, NR Mandre - Canadian Metallurgical Quarterly, 2022 - Taylor & Francis
This study aims to investigate the recovery of copper from a low-grade source of an ore
deposit in sulphuric acid solution. In this study, a full-factorial statistical design model and …

Mathematical and Statistical Process Modeling of Hydrochloric Acid Leaching of Iron-Oxide Impurity from Inyi Kaolin: Response Surface Methodology

JS Uzochukwu, OC Elijah, OP Enyinnaya… - … Journal of Modern …, 2023 - journal.ijmdes.com
The iron-oxide impurity is comparatively abundant in the low-grade kaolin from Inyi in
Enugu, Nigeria. The iron-oxide impurities in kaolin make it unsuitable for industrial use. This …