The influence of nickel carriers minerals, contained in three different laterite ore samples, on their extraction by a sulfation-roasting-leaching process, is investigated in this paper. X-ray diffraction, scanning electron microscopy coupled to energy dispersive spectroscopy and chemical analys...

A new method of preparation high purity nickel sulfate assisted by ultrasonic was studied. The process mechanism was analyzed by Inductively Coupled Plasma (ICP), X-ray diffraction (XRD), Scanning electron microscopy (SEM), and Energy dispersive X-ray spectrometry (EDS).The reaction mechanisms o...

This paper deals with the removal of trace iron from nickel sulfate solution using Monophos resin. Kinetics, thermodynamics and adsorption mechanism of iron adsorption were studied. Kinetic and thermodynamic parameters as well as equilibrium constants were calculated based on various equilibrium...

In real hydrometallurgical systems, ion exchange of metal cations is often accompanied by competing processes, such as complex formation. In this paper, we have analyzed influence of complex formation on nickel uptake in a chelating ion exchanger that contains iminodiacetate groups. Both outer-s...

This research reports on an investigation of the performance of inorganic membranes for use in the percrystallisation of nickel sulphate hydrate. In this novel process, the separation of the solvent (water) and the crystallised solute (nickel sulphate hydrate) occurs continuously in a single-ste...

Aqueous solution of a nonionic surfactant Brij 35 has been used against two sulfate salts, ammonium sulfate and manganese sulfate to construct new aqueous biphasic systems (ABS). Well defined phase diagrams with suitable tie-lines were obtained by turbidometric titration method at 303 K. The tie...

Phase equilibrium data for 1-propanol + manganese sulphate and 2-propanol + lithium sulphate aqueous two-phase systems were measured at T = 298.15, 308.15 and 318.15 K. The salting-out effect was discussed on the bases of the salting-out coefficient of the Setschenow-type equation. Furthermore, ...

The manganese hypophosphite monohydrate (Mn(H2PO2)2·H2O) was synthesized by using the energy saving method in acetone medium for controlling the exothermic process of H2 gas releasing. The thermal analysis (TG/DTG/DTA), atomic absorption spectrophotometry (AAS) and X-ray powder diffraction (XRD...

Liquid–liquid equilibrium (LLE) data were obtained for polyethylene glycol (PEG)-salt aqueous two-phase system (ATPS) at 298.15, 318.15 and 338.15 K. Two salts, copper sulfate and manganese sulfate, and PEG with different molecular weights, 2 000, 4000 (manganese sulfate only), and 6 000, were ...

The Manganese sulphate solution has been used for neutron metrology through the method of Manganese Bath. This method uses physical parameters of manganese sulphate solution to obtain its corrections. This work established a functional relationship, using the gravimetric method, between those ph...

Thermal gravimetric analysis and in situ high-temperature powder X-ray diffraction (HT-PXRD) revealed that MnSO4 begins to thermally decompose under air at ~625 °C, which is significantly lower than the values reported in the literature. The reaction is kinetically sluggish and yields bixbyite,...

The synergistic effect of Cyanex 302 on solvent extraction of nickel and cadmium from sulfate solution with D2EHPA diluted in kerosene has been investigated with the aim of increasing separation efficiency. Experiments are carried out using the sole D2EHPA and also D2EHPA–Cyanex 302 mixtures in...

Sulphur is an essential macroelement that plays important roles in living organisms. The thiol rich sulphur compounds, such as cysteine, γ-Glu–Cys, glutathione and phytochelatins participate in the tolerance mechanisms against cadmium toxicity. Plants, algae, yeasts and most prokaryotes cover ...

Sulfate reducing bacteria (SRB) was used to stabilize cadmium (Cd) in sediments spiked with Cd. The study found that the Cd in sediments (≤600 mg kg−1) was successfully stabilized after 166 d SRB bio-treatment. This was verified by directly and indirectly examining Cd speciation in sediments, m...

Mining and hydrometallurgical industries produce large amounts of hazardous metal sulfate solutions as a by-product which can be recycled and exploited to produce valuable and advanced materials. Here, for the first time, extracellular polymeric substances of Bacillus licheniformis were applied ...

Cadmium (Cd) is a poisonous metal that is toxic for male reproduction. Cyanidin-3-O-glucoside (C3G) as typical anthocyanin benefits many organs. In this study, we investigated the protective effects and associated underlying mechanisms of C3G against the toxicity of Cd on male reproduction in ra...

Cadmium is considered as one of the most hazardous metals for living organism and ecosystems. Environmental factors play an important role since they alter the toxicity of metals by varying the bioavailability of these elements for the organisms. The aim of the present study was to investigate, ...

Cadmium (Cd) is a toxic element, and is prevalent all over the world because of industrialization, mining, sewage sludge, or pesticide supply. Sulfur deficiency is also a frequent problem faced in agriculture. To date, information relating to effects of sulfate on Cd toxicity is still limited. T...

Cadmium (Cd) contamination of agricultural soil has become a serious threat to global food security. The present study highlights the role of added sulfate (SO42−) in modulating sulfur metabolism and antioxidant defense system conferring tolerance against Cd stress in maize. Expression patterns ...

One new open-framework two-dimensional layer, [Cd(NH3CH2COO)(SO4)], I, has been synthesized using amino acid as templating agent. Single crystal structural analysis shows that the compound crystallizes in monoclinic cell with non-centrosymmetric space group P21, a = 4.9513(1) Å, b = 7.9763(2) Å,...