Results 91 to 100 of about 900 (198)

Sulfidation of Smithsonite via Microwave Roasting under Low-Temperature Conditions

open access: yes
This study employs microwave roasting to decompose smithsonite mineral (zinc carbonate) into zinc oxide, which then reacts with pyrite to sulfurize its surface, forming zinc sulfide.
Xingzhi Zhang   +7 more
core   +1 more source

Mineralization and Fluid Inclusion Studies in the Tarz Carbonate-Hosted Pb-Zn Deposit, Central Iran

open access: yesJournal of Economic Geology, 2019
Introduction More than 300 sediment-hosted Zn–Pb deposits and occurrences have been recognized in Iran (Rajabi et al., 2013). Most of these deposits are concentrated in the Central Alborz, Tabas-Posht-e-Badam, Malayer-Esfahan and Yazd-Anarak ...
Balandeh Aminzadeh
doaj   +1 more source

Enhancing flotation of smithsonite by using 1,3,5-Triazinane-2,4,6-trithione as sulfidation [PDF]

open access: yes, 2021
1,3,5-Triazinane-2,4,6-trithione (TMT) was used for the first time as a sulfidation agent in the flotation of smithsonite. Results showed that 80.5% recovery rate could be obtained in the presence of TMT $(5 × 10^{-5} mol$ / $L)$ and butyl xanthate $(5 ×
Luo, Xianping   +5 more
core  

Occurrence of Manganese in the Zhaxikang Lead-Zinc Deposit from Tibet Investigated by Energy Scanning Electron Microscope and X-ray Diffraction Methods

open access: yesYankuang ceshi, 2014
The Zhaxikang Pb-Zn polymetallic ore deposit, the first SEDEX-modified by hot spring type Mn-Fe-Sb-Pb-Zn-Ag deposit discovered in China, is associated with Pb, Zn, Ag, Sb, Cu, S, Mn, As and other elements.
XU Guo-dong   +3 more
doaj   +2 more sources

A Mechanism for the Adsorption of 2-(Hexadecanoylamino)Acetic Acid by Smithsonite: Surface Spectroscopy and Microflotation Experiments

open access: yes, 2018
Zinc is mostly extracted from oxidized zinc and zinc sulfide minerals, and this process involves flotation as a key step. While it is easier to float the sulfide mineral, its consumption and depletion has led to an increased reliance on oxidized zinc ...
Li Yu   +6 more
core   +1 more source

Effect of depressants in the selective flotation of smithsonite and calcite using potassium lauryl phosphate as collector [PDF]

open access: yes, 2019
In order to selectively separate smithsonite and calcite using potassium lauryl phosphate as collector and reveal the depression mechanism, the approaches of micro-flotation and zeta potential measurements were adopted.
Sun, Qing, Feng, Qiming, Shi, Qing
core   +1 more source

Using additive and multiplicative statistical and multi-fractal analysis to determine Zn-Pb stream sediments geochemical anomaly in Khomain, Iran

open access: yesDiscover Geoscience
In this study, 163 stream sediment samples were collected from the sub-catchment of Khomain Dehno, and 39 samples were taken from the average elemental concentration at the outlet of the catchment.
Fatemeh Vesmoridi, Feridon Ghadimi
doaj   +1 more source

Efficient flotation of smithsonite using sulfidation reconstruction based on fluidization roasting

open access: yes
There is an urgent and unprecedented demand for the selective separation of zinc oxide minerals from refractory zinc oxide ores due to declining reserves of zinc sulfide ores. Smithsonite, as a typical zinc oxide resource, requires sulfidation to enhance
Gao, P, Li, Y, Chen, Y, Sun, Y, Han, R
core   +1 more source

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