Results 41 to 50 of about 900 (198)

Smithsonite flotation with lauryl phosphate

Minerals Engineering, 2020
Abstract Smithsonite, the most abundant nonsulfide zinc mineral, has attracted growing attention due to the demand for zinc and the exhaustion of traditional sulfide zinc resources. Traditional flotation techniques are not efficient and do not easily separate smithsonite from other carbonate minerals, such as calcite. In this regard, lauryl phosphate
Weiping Liu, Zuoxing Wang, Xuming Wang, Jan D. Miller   +3 more
openaire   +2 more sources

Zinc Phosphate Nanoparticles Produced in Saliva

European Journal of Inorganic Chemistry, Volume 2020, Issue 38, Page 3654-3661, October 15, 2020., 2020
Water‐soluble zinc compounds are frequently added to food and cosmetic products as trace element supplements. They form nanoparticles upon contact with saliva. Their chemical and structural evolution was subsequently followed using small‐angle X‐ray scattering and X‐ray absorption spectroscopy.
Patrick E. J. Saloga, Glen J. Smales, Adam H. Clark, Andreas F. Thünemann   +3 more
wiley   +1 more source

Geothermometry obtained from the calcite twin and fluid inclusions in barite (Irankuh Pb-Zn deposit, Southwest of Isfahan) [PDF]

پترولوژی, 2017
The Irankuh mining district is located 20 km southwest of Isfahan and is geologically situated in Sanandaj - Sirjan zone and the lower Cretaceous sequence of Isfahan-Malayer ore mineralization area. The ore minerals are emplaced in the faulted contact of
Alijan Aftabi, Hengameh Hosseini-Dinani
doaj   +1 more source

Synchrotron X‐ray diffraction investigation of the surface condition of artefacts from King Henry VIII's warship the Mary Rose

Journal of Synchrotron Radiation, Volume 27, Issue 3, Page 653-663, May 2020., 2020
A new method using a high‐sensitivity X‐ray camera for a large‐range diffraction pattern is presented; it confirms the effectiveness of over 35 years of conservation treatment for brass artefacts from the Mary Rose.Synchrotron X‐ray diffraction (XRD) measured on the XMaS beamline at the ESRF was used to characterize the alloy composition and ...
Mark G. Dowsett, Pieter-Jan Sabbe, Jorge Alves Anjos, Eleanor J. Schofield, David Walker, Pam Thomas, Steven York, Simon Brown, Didier Wermeille, Mieke Adriaens   +9 more
wiley   +1 more source

Multianalysis Characterization of Mineralogical Properties of Copper‐Lead‐Zinc Mixed Ores and Implications for Comprehensive Recovery

Advances in Materials Science and Engineering, Volume 2020, Issue 1, 2020., 2020
Copper‐lead‐zinc mixed ore in Tibet, China, is a complex and refractory polymetallic ore resource; thus, ascertaining its mineralogical properties is very important for comprehensive recovery of valuable elements. In this work, the mineralogical properties of this copper‐lead‐zinc mixed ore have been characterized in detail following a ...
Qian Zhang, Shuming Wen, Qicheng Feng, Song Zhang, Wenlin Nie, Sakar Mohan   +5 more
wiley   +1 more source

Influence of Sodium Carbonate on the Flotation Separation of Smithsonite and Calcite by Sulfuration-Amine Method

, 2023
Sulfuration-amine flotation is the most commonly used method to separate zinc oxide ore, but its shortcomings such as unstable separation index and poor applicability to high mud-content raw ore limit its application in industry.
Yongchao Piao, Zengrui Pang, Taishun Liu, Kehua Luo, Yanbo Shang, Yangge Zhu, Fayu He   +6 more
core   +1 more source

Processing Mineralogy Study on Lead and Zinc Oxide Ore in Sichuan

Metals, 2016
The processing mineralogy characteristics of an oxidized lead-zinc ore from Sichuan were studied systematically using numerous modern instruments. Results showed that lead and zinc oxide content in the ore exceeded the minimum industrial grade, and also ...
Mei Yang, Wending Xiao, Xiang Yang, Patrick Zhang   +3 more
doaj   +1 more source

Concentrating Mill Wastes are the Source of Pollution of Human Environment and Natural Ecosystems with Heavy Metals: A Case Study in Primorsky Krai, Russian Federation

Journal of Chemistry, Volume 2020, Issue 1, 2020., 2020
Elevated contents of hazardous elements in natural ecosystems are often associated with human activities. Significant quantities of these elements, including heavy metals, are concentrated in tailings. The goal of the study was to assess the mineralogical and geochemical features of the old tailings of the decommissioned Krasnorechenskaya concentrating
Irina A. Tarasenko, Alexander V. Zin’kov, Aleksei S. Kholodov, Muhammad Riaz, Valeriy I. Petukhov, Nikita Y. Popov, Aristidis Tsatsakis, Kirill S. Golokhvast, James Barker   +8 more
wiley   +1 more source

Unsupervised Identification of Targeted Spectra Applying Rank¹-NMF and FCC Algorithms in Long-Wave Hyperspectral Infrared Imagery

Remote Sensing, 2021
Clustering methods unequivocally show considerable influence on many recent algorithms and play an important role in hyperspectral data analysis. Here, we challenge the clustering for mineral identification using two different strategies in hyperspectral
Bardia Yousefi, Clemente Ibarra-Castanedo, Martin Chamberland, Xavier P. V. Maldague, Georges Beaudoin   +4 more
doaj   +1 more source

Improved Understanding of the Sulfidization Mechanism in Amine Flotation of Smithsonite: An XPS, AFM and UV–Vis DRS Study

, 2020
Sulfidization is required in the amine flotation of smithsonite; however, the sulfidization mechanism of smithsonite is still not fully understood. In this work, X-ray photoelectron spectroscopy (XPS), atomic force microscopy (AFM) and UV–vis ...
Zhicheng Liu, Jialei Li, Ruizeng Liu, Dianwen Liu, Bin Pei, Yunwei Wang   +5 more
core   +1 more source