Sulphuric Acid Bake-Leach Process for the Treatment of Mixed Copper-Cobalt Oxide Ores: An Experimental Study | Chapter 2 | Research Aspects in Chemical and Materials Sciences Vol. 2

For the treatment of mixed copper-cobalt oxide minerals, a sulphuric acid bake-leach process was investigated as an alternative to reductive leaching. On the dissolution of copper and cobalt, the effects of acid dose, baking temperature, baking duration, and leaching time were examined. The combined copper-cobalt oxide ore was treated with sulphuric acid before being baked in a muffle furnace. The reacted samples were subjected to water leaching at room temperature to examine the leachability of copper and cobalt from the baked material.

Acid concentration affected the dissolution of copper and cobalt differently, with cobalt being more sensitive to acid concentration. Copper and cobalt were quickly removed from the baked material without the application of reducing agents. For copper-cobalt oxide ores, the sulfuric acid bake-leach process has been found to be a practical substitute for the reductive leaching approach.

 

Author (s) Details

Precious Mwamba

Department of Metallurgy and Mineral Processing, University of Zambia, Lusaka, Zambia and  Department of Metallurgy, Copperbelt University, Kitwe, Zambia.

Jewette H. Masinja

Department of Metallurgy and Mineral Processing, University of Zambia, Lusaka, Zambia.

James Manchisi

Department of Metallurgy and Mineral Processing, University of Zambia, Lusaka, Zambia.

Leonard Kabondo

Department of Metallurgy, Copperbelt University, Kitwe, Zambia.

 

View Book :-  https://stm.bookpi.org/RACMS-V2/article/view/7626

Review on Green Synthesis of Metal Oxide Nanoparticles for Potential Applications | Chapter 4 | Research Aspects in Chemical and Materials Sciences Vol. 1

 The fundamental purpose of green synthesis is to decrease chemical waste when synthesising nanoparticles (NPs). Green technology is a way of creating high-potential NPs that may be utilised to overcome application limitations in a range of fields. Compared to chemical synthesis, it is more cost-effective. It is chemical-free, does not require sophisticated equipment, and is quite affordable. Chemical-reducing and capping chemicals are routinely used to make metal oxide nanoparticles (NPs), which restricts their biological potential. According to experts, green synthesis is an environmentally benign approach that enhances the unique physical and chemical properties of nanomaterials. We look at how to make metal oxide NPs in a green way and how they may be used in a variety of areas, including energy and the environment, aerospace, and medicine. This critique includes medicine, biotechnology, and other topics. The current paper covers a number of significant benefits of NP production using plant extracts. Because it uses low-cost, non-toxic components, the synthesis approach is both environmentally benign and cost-effective. Metal oxide NP size and shape control are critical techniques for a variety of applications.

Author(s) Details:

G. Vinitha,
Division of Physics, School of Advanced Sciences, Vellore Institute of Technology, Chennai, Tamil Nadu, India.

Please see the link here: https://stm.bookpi.org/RACMS-V1/article/view/7081