Selective Separation of Zinc and Iron from Spent …
Abstract. This work reports the viability of the selective separation of zinc from spent pickling solutions by means of membrane‐based solvent extraction to get a …
Selective Leaching of Zinc from Spent Zinc-Carbon Battery …
This paper describes the ammoniacal ammonium carbonate leaching behavior of zinc and manganese from spent zinc-carbon batteries. For selective extraction of Zn from the spent zinc-carbon battery, leaching tests were carried out as a function of process parameters such as concentration of (NH4)2CO3, ammonia, temperature, time …
Recovery of Zinc from Treatment of Spent Acid Solutions …
Typical methods for the treatment of waste pickling solutions include precipitation by alkaline reagents, most commonly calcium hydroxide. As a result, large volumes of galvanic sludge form, containing iron, calcium, sulphates, and a relatively small quantity of zinc (<20%), making Zn recovery not profitable. In summary, state-of-the-art …
Leaching and separation of zinc from the black paste of spent …
Most of the research on the recycling of spent alkaline and zinc-carbon batteries has paid attention to the separation efficiencies of zinc and manganese using hydrometallurgical (Rácz and Ilea ...
Preparation of zinc nano structured particles from …
Due to the different vapor pressures of metals, zinc can be separated from spent zinc manganese battery cathodes by vacuum evaporation. High separation efficiency of 99.68% was achieved when heating temperature rose to 1073 K at 10,000 …
Selective separation of copper and zinc from spent chloride …
The present investigation is focused on recovery of copper and zinc from spent chloride pickle liquors generated from brass artefacts manufacturing units using solvent extraction and precipitation-stripping. ... 42.48%, and 9.35%, respectively, and the separation effect of cobalt and zinc showed to be outstanding, as their separation …
A new approach to zinc–nickel separation using solution
The present investigation involves the separation of zinc and nickel from a sulfate solution using the acidic leaching of zinc plant residue after cadmium removal step as precursor (42.88 wt% Zn, 8.50 wt% Cd and 2.33 wt% Ni). Separation of nickel from the solution was done by pouring it into a strong alkaline sodium hydroxide solution due to …
The Separation and Recovery of Indium, Gallium, and Zinc from Spent …
Request PDF | The Separation and Recovery of Indium, Gallium, and Zinc from Spent GZO(IGZO) Targets | As the waste of ZnO base display panel increased in recent years, it is a big issue to treat ...
The Metsep Process for the separation and recovery of …
separate the zinc impurity from the basically ferrous chloride solu-tions that are commonly known as spent pickle liquor. The ferrous chloride solution could then be treated in a conventional spray-roaster plant. This research resulted in the Metsep Process, which consists of three stages. The first stage involves the separation of the zinc ...
Scale-Up of Membrane-Based Zinc Recovery from Spent …
Zinc recovery from spent pickling acids (SPAs) can play an important role in achieving a circular economy in the galvanizing industry. This work evaluates the scale-up of membrane-based solvent extraction technology aimed at the selective separation of zinc from industrial SPAs as a purification step prior to zinc electrowinning (EW). The …
(PDF) Selective Separation of Zinc and Iron from …
This work reports the viability of the selective separation of zinc from spent pickling solutions by means of membrane‐based solvent extraction to get a high concentrated zinc solution with...
Scale-Up of Membrane-Based Zinc Recovery from …
Zinc recovery from spent pickling acids (SPAs) can play an important role in achieving a circular economy in the galvanizing industry. This work evaluates the scale …
Selective separation of copper and zinc from spent chloride …
An integrated hydrometallurgical process was used for the zinc leaching and purification from a zinc ore containing 9.75 wt% zinc, which showed that after precipitation of iron, Zn extraction of 88.5% was obtained with the 2 stages extraction system composed of 30 vol% D2EHPA as extractant. Expand
Separation of manganese, zinc and nickel from leaching …
The present investigation involves the separation of zinc and nickel from a sulfate solution using the acidic leaching of zinc plant residue after cadmium removal step as precursor (42.88 wt% Zn ...
Electrochemical recycling of the zinc from spent Zn–MnO2 batteries
Abstract. In this work, zinc from the spent Zn–MnO2 batteries is recycled. Ionic zinc is recovered from acidic or alkaline solutions using a galvanostatic technique. An optimum current density ...
Leaching and separation of zinc from the black paste of spent …
Spent batteries represent a source of hazardous materials when discarded without appropriate treatment. Investigations on the recovery of zinc from the black paste of spent MnO(2)-Zn cell batteries were carried out. Leaching of zinc and manganese from the black paste of spent batteries using sulfuric or hydrochloric acid solutions was studied.
Separation of zinc from spent zinc-carbon batteries by …
DOI: 10.1016/J.HYDROMET.2008.12.010 Corpus ID: 97656760; Separation of zinc from spent zinc-carbon batteries by selective leaching with sodium hydroxide @article{Shin2009SeparationOZ, title={Separation of zinc from spent zinc-carbon batteries by selective leaching with sodium hydroxide}, author={Shun Myung Shin and …
Separation of zinc from spent zinc-carbon batteries by …
The spent zinc-carbon batteries were separated into 10% magnetic material and 89% non-magnetic material consisting of 31% of 2.46 mm oversize and 58% of 2.46 mm undersize. The elemental analysis of spent zinc-carbon batteries is shown in Table 2. The magnetic material contains 10.2% Fe, whereas the nonmagnetic materials for the …
Leaching and separation of zinc from the black paste of spent …
Veloso et al. [8] proposed a method for selective separation of zinc and manganese from spent alkaline batteries. Their recycling route comprises the dismantling of the batteries to separate the spent batteries dust from other components and grinding the batteries dust to produce a black homogeneous powder. The powder was then …
Selective Recovery of Zinc over Iron from Spent Pickling …
of zinc and iron separation kinetics, although separation selectivity (at 30 min) was higher for NDSX configuration, α Zn/Fe = 22, compared to EPT process α Zn/Fe = 15. The optimum TBP content ...
Solvent Extraction Studies for Separation of …
The study suggests hydrometallurgical routes for the recovery of zinc and cadmium from spent battery leachates using a novel extractant Cyphos IL 104 diluted in toluene and synthesis of zinc and ...
Leaching and solvent extraction purification of zinc …
Article 25 March 2024. Introduction. The importance of zinc oxide ores processing such as carbonate and silicates minerals have increased because of the …
(PDF) Selective Separation of Zinc and Iron from Spent …
Zinc recovery from spent pickling acids (SPAs) can play an important role in achieving a circular economy in the galvanizing industry. This work evaluates the scale-up of membrane-based solvent extraction technology aimed at the selective separation of zinc from industrial SPAs as a purification step prior to zinc electrowinning (EW).
Recovery of zinc and iron from hot-dip galvanizing spent …
The zinc and iron extraction and separation from the spent pickle liquor was attempted with five modifiers namely iso-octyl alcohol, TBP, sec-octanol, n-butanol and iso-decyl alcohol. The experimental conditions were a duration on 15 min, temperature of 298 K and a phase ratio of 1:1. The results are compared in Fig. 2.
Development of a hydrometallurgical route for the recovery of zinc …
A hydrometallurgical route is proposed in this paper for the selective separation of zinc and manganese from spent alkaline batteries. The recycling route comprises the following steps: (1) batteries dismantling to separate the spent batteries dust from other components (iron scraps, plastic and paper), (2) grinding of the batteries dust …
Research on extraction of zinc from spent pickling solution …
Zinc and iron were separated from the spent pickling solution by extraction with methyl trioctyl ammonium chloride (Aliquat 336). The purpose of the extraction experiment is to determine a variety of parameters (e.g. addition of octanol, contact time, phase ratio, [H +] concentration and Aliquat 336 concentration).Under optimal extraction …
Solvent extraction and separation of zinc-iron from spent …
The selective removal of zinc(II) over iron(II) by liquid-liquid extraction from spent hydrochloric acid pickling effluents produced by the zinc hot-dip galvanizing industry was studied at room ...
Life cycle assessment of zinc and iron recovery from spent …
This work reports the viability of the selective separation of zinc from spent pickling solutions by means of membrane‐based solvent extraction to get a high concentrated zinc solution with a ...
Solvent extraction and separation of zinc and iron from spent …
Conclusions. Solvent extraction and separation of hydrochloric acid and metal values (zinc and iron) from spent pickling solution containing 90 g/L HCl, 117 g/L Zn, 30 g/L Fe (II) and 1 g/L Fe (III) were investigated. When a tertiary amine, TiOA or TEHA, in the absence or presence of equimolar HDEHP was used as extractant, HCl, Zn (II) and …
Dissolution and precipitation of zinc and manganese obtained from spent
A hydrometallurgical route is proposed in this paper for the selective separation of zinc and manganese from spent alkaline batteries. The recycling route comprises the following steps: (1 ...
