نتایج جستجو برای: d2ehpa

تعداد نتایج: 175  

Journal: :Journal of the Korean Institute of Resources Recycling 2014

Journal: :International Journal of Environmental Science and Technology 2016

Journal: :Solvent Extraction Research and Development, Japan 2015

In this research work, solvent extraction and stripping of zinc ions from a Zn-Mn-Cd-bearing solution was investigated using D2EHPA as the extractant in a chloride medium. The efficiency of the extraction and stripping stages was evaluated separately, and different parameters such as the pH, extractant concentration, reaction temperature, and contact time were studied. Based on the results obta...

2003

The traditional roast-leach-electrowin(RLE) zinc production route was developed for the processing of sulphide ores. It can prove inefficient for some complex sulphides and is not readily applicable to the treatment of other ore types. Inherent to this route is the generation of SO2 gas that has to be fixed for environmental reasons, usually resulting in the production of sulphuric acid. These ...

Journal: :Bulletin of the mineral research and exploration 2022

In this study, the production technology of rare-earth oxides from Eskişehir-Beylikova complex ore that contains barite, fluorite, elements, and thorium were investigated. processes can be used in thorium-free mixed rare earth tested. Roasting, leaching, solvent extraction precipitation methods respectively. Roasting temperature roasting duration determined as 600 °C 1 hour, The optimum leachin...

Journal: :Metals 2022

Lithium-ion battery (LIB) recycling has received continued interest in recent years due to its benefits, which include reducing the environmental impact of spent LIBs and providing a secondary source valuable metals, such as Li, Co, Ni. This paper characterized Li separation with D2EHPA from citrate media function pH identified optimal overall at 5.5. The was optimized 5.5, it concluded that 23...

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