A technology for recovering indium from Jinchuan copper-smelting ash was developed. Indium in the ash was first enriched to the leaching-slag in leaching process, and then recovered by sulfating roasting. The method included mixing the leaching-slag with sulfuric acid, making them into particles...

The extraction efficiencies and separation factors (βIn/Fe, βIn/Zn, βIn/Al, βIn/Mg) of indium and impurities (Fe3+, Zn2+, Al3+, Mg2+) are compared with the different extractant concentration, initial pH and contact time during microfluidic extraction and conventional extraction. The results ...

This study investigated the suitability of mechanical pre-treatment methods (mechanical abrasion and treatments of heat, laser, and plasma) together with a hydrometallurgical process comprising leaching and cementation for recovering indium from used LCD screens. With mechanical abrasion pre-tre...

The geochemical fate of indium in natural waters is still poorly understood, while recent studies have pointed out a growing input of this trivalent element in the environment as a result of its utilisation in the manufacturing of high-technology products. Reliable and easy-handling analytical t...

The chlorination process of anhydrous indium(III) oxalate with carbon tetrachloride vapour in an argon stream was studied at different temperatures (200, 250, 300, 350, 400 and 450 °C) and times (5, 10, 15, 20 and 25 h) each. The reaction products were analysed by determination of indium and ch...

To obtain high-performance spinel LiMn2O4, various types of hydrated layered-spinel lithium manganate composites have been controllably synthesized through the hydrothermal process. It is found that the composition and morphology of these intermediate products can be tuned by the concentration o...

Low concentration alkaline leaching was used for predesilication treatment of low-grade pyrolusite. The effects of initial NaOH concentration, liquid-to-solid ratio, leaching temperature, leaching time and stirring speed on silica leaching rate were investigated and the kinetics of alkaline leac...

An alternative microwave-assisted hydrothermal route for the preparation of manganate nanoflowers under basic conditions has been proposed in view of potential uses in selective retention of strontium from multicomponent aqueous streams. Based on the combination of such characterization techniqu...

Current work is exploring the feasibility of using potassium manganate (K2MnO4) in drinking water treatment. The manganate species (MnO42−) can act as both an oxidant and a coagulant/adsorbent arising from the formation of insoluble manganese dioxide from the chemical reduction of Mn(VI) to Mn(I...

This work describes a route for extracting manganese and zinc from spent zinc–manganese dioxide dry cells via fusion of the electroactive components with potassium hydroxide to form potassium manganate (K2MnO4) and soluble zincates. The fused mass was dissolved in aqueous KOH and the insoluble ...

As part of a fundamental study on the recovery of fine particles, ultrafine silica was liquid-liquid extracted with the anionic collector sodium dodecyl sulfate (SDS). Isooctane and water were used as the two liquid phases. The pH dependence of the recovery level of the silica was determined in ...

Brannerite is a refractory uranium mineral from which it is very difficult to liberate the uranium. Hence in commercial mineral processing operations, brannerite often reports to the residue. This paper will show that for a pure form of natural brannerite nearly complete extraction of uranium (∼...

The interaction between the trivalent cations chromium(III), lanthanum(III) and gadolinium(III) and the anionic surfactant sodium dodecyl sulfate (SDS) has been studied in aqueous solutions using electrical conductivity. This data, together with previous results for aluminium(III) and SDS, are c...

A facile synthesis of mesoporous V2O5 nanosheets has been developed by a simple hydrothermal method and subsequent instantaneous heating and calcination. These V2O5 nanosheets exhibit ultrastable capacity retention at different current density, and also show excellent rate capability, maintainin...

A coprecipitation method has been used to prepare several cobalt-based vanadates. New hydrates such as β-Co(VO3)2.2H2O, Co2V2O7.3.3H2O, Co3(VO4)2.12H2O and (NH4)2Co2V10O28.16H2O, have been obtained. During the synthesis, several parameters, namely the pH value, must be finely controlled to prep...

LiFePO4–Li3V2(PO4)3/C (LFP–LVP/C) composite is prepared by a modified solid-state method, along with LFP/C composite as a reference. The structure and morphology of the as-prepared materials are analyzed by X-ray diffraction (XRD) and electron microscopy. LFP–LVP/C composite is well-crystalli...

The Lithium Sulfur (Li–S) battery system is one of the most promising candidates for electric vehicle applications due to its higher energy density when compared to conventional lithium ion batteries. However, there are some challenges facing Li−S battery commercialization, such as: low active ...

Li4Ti5O12 (LTO) with enhanced properties can replace the conventional carbonaceous anode material of lithium ion battery. Vanadium doped LTO (Li4Ti5-xVxO12, x = 0, 0.05, 0.1, 0.15) materials are synthesized by sol-gel process followed by calcination of dried gel in air and argon atmosphere. No a...

A novel and easy-to-use electrochemical sensor was developed using carbon paste electrode (CPE), cesium chloride (Cs) and sodium dodecyl sulphate (SDS) to construct surfactant/cesium modified carbon paste electrode (SCMCPE). This sensor is sensitive for the determination of ropinirole HCl (RPN),...

The aim of our study was to investigate the toxicological mechanism of cesium on Indian mustard (Brassica juncea L.). The impact of cesium toxicity to plants was evaluated using phytophysiology and genetic methods. In this study, Brassica juncea was grown on Cs-contaminated Hoagland's nutri...