DOI: 10.1016/j.molliq.2023.121604 Corpus ID: 257500347; Selective flotation separation of scheelite from apatite by application of ATMP as an efficient depressant @article{Wang2023SelectiveFS, title={Selective flotation separation of scheelite from apatite by application of ATMP as an efficient depressant}, author={Xun Wang and …
The metal–organic complex collector has demonstrated broad application prospects in the flotation of scheelite, wolframite, cassiterite, ilmenite, and other oxidation minerals. However, the exact structure of complex collectors was still unknown due to the lack of convincing and comprehensive research methods. Herein, taking the most ...
There are two main sources of tungsten minerals, wolframite ((Mn, Fe)WO 4) and scheelite (CaWO 4) [13]. ... According to the micro-flotation test, when the optimum pH of wolframite flotation was 7, and the dosage of AATS was 1×10 −4 mol/L, the wolframite recovery was 93%, and the of calcite was about 10% merely. When the …
The activation of scheelite and wolframite by lead nitrate with benzohydroxamic acid (BHA) as collector was investigated by means of micro flotation test, zeta potential measurement, X-ray photoelectron spectroscopy (XPS) analyses and density functional theory (DFT) calculation. The flotation results confirmed that the …
The metal–organic complex collector has demonstrated broad application prospects in the flotation of scheelite, wolframite, cassiterite, ilmenite, and other oxidation minerals. ... of wolframite ...
The activation of scheelite and wolframite by lead nitrate with benzohydroxamic acid (BHA) as collector was investigated by means of micro flotation …
Semantic Scholar extracted view of "The molybdenite Re-Os isotope chronology, in situ scheelite and wolframite trace elements and Sr isotope characteristics of the Chuankou tungsten ore field, South China" by Jinhua Qin et al. ... Separation of wolframite ore by froth flotation using a novel "crab" structure sebacoyl hydroxamic acid ...
Scheelite deposits typically contain coexisting minerals such as calcite, dolomite, and fluorite. As these minerals share similar surface properties with scheelite, …
Semantic Scholar extracted view of "Recovery of wolframite from tungsten mine tailings by the combination of shaking table and flotation with a novel "crab" structure sebacoyl hydroxamic acid." by Zhiqiang Huang et al. ... Adsorption of Trisiloxane Surfactant for Selective Flotation of Scheelite from Calcite at Room Temperature.
1. Introduction. At present, world's reserves of tungsten are estimated to be 3 × 10 6 t [1].China, the most rich country in tungsten resources, has about 40% of the world's reserves of tungsten [2].Most of tungsten ores, particularly wolframite and scheelite of industrial interest, occur in the deposits with very low content of WO 3 (0.1–2.5%) that is …
The occurrence of either scheelite (CaWO4) or wolframite ([Fe,Mn]WO4) in tungsten deposits is generally explained by the Ca content of the host rocks, but scheelite/wolframite ratios in granitoids ...
Bench-scale flotation tests indicated that SHA can effectively recover wolframite concentrate with 55.64% WO 3 grade and 75.28% WO 3 recovery from wolframite tailings by the combined shaking table-flotation process. Polarized light microscope observations showed that SHA could promote the formation of hydrophobic …
Scheelite, wolframite, and cassiterite can be well collected in the roughing flotation with the recovery rate at 81.81%, 78.48%, and 68.86%. ...
In order to improve the recovery of tungsten ores containing tin minerals, anisic hydroxamic acid (p-methoxy benzohydroxanic acid, PMOB) was synthesized and introduced as novel collector in the flotation of scheelite, wolframite and cassiterite. The flotation performance and adsorption mechanism were investigated by micro/batch flotation, …
In this paper, the progress and prospects of scheelite flotation chemistry and its practice are summarized, encompassing various fields — such as crystal …
Scheelite associated with calcium-containing minerals such as calcite and fluorite is difficult to separate by flotation because of the Ca ions contained in the mineral lattices, which cause ...
The flowsheet is composed of four parts: scaling and low-intensity magnetic separator for removing wood chips and tramp iron, high-intensity wet magnetic …
The samples of wolframite and quartz were collected from Xihuashan Mine, Jiangxi province and Ningxiang, Hunan province. X-ray diffraction (XRD) analysis and particle size distribution of wolframite and quartz designated for the flotation test were given in Fig. 1.And their X-ray fluorescence spectrometer (XRF) results were shown in …
Semantic Scholar extracted view of "Exploring the clean flotation mechanism towards wolframite using NaClO as an oxidant" by Jing Qi et al. ... Strengthening flotation enrichment of Pb(Ⅱ)-activated scheelite with N-[(3-hydroxyamino)-propoxy]-N-hexyl dithiocarbamate. Jing Qi Gang Zhao Sheng Liu Wei Chen Guangyi Liu.
DOI: 10.1016/j.apsusc.2020.147036 Corpus ID: 224863438; Research on flotation mechanism of wolframite activated by Pb(II) in neutral solution @article{Huang2020ResearchOF, title={Research on flotation mechanism of wolframite activated by Pb(II) in neutral solution}, author={Haiwei Huang and Tingsheng Qiu and …
Scheelite (CaWO4) and Wolframite ((Fe,Mn)WO4) are the principal minerals of tungsten, but other important minerals include ferberite (FeWO4) and huebnerite (MnWO4) will also respond to froth flotation.The high specific gravity of these minerals makes many of these ores amenable to gravity concentration methods, however, the …
2.2. Flotation tests. Flotation tests were conducted on a hanging trough flotation cell. Samples (1000 g) were dispersed with running water.Sodium carbonate (200 g/t), sodium fluorosilicate (20 g/t) and aluminum sulfate (250 g/t) were used as regulators.Lead nitrate (250 g/t) was used as an activator for …
In this study, a new hydroxamic-acid molecule - sebacoyl hydroxamic acid (SHA) was synthesized and characterized. It was the first time that SHA with dual hydroxamic acid groups of "crab" structure was used as a collector for wolframite flotation, and its collecting ability was compared with the traditional collector benzohydroxamic …
ABSTARCT Wolframite is a series of minerals belonging to the isomorphic (Fe, Mn)WO4 with varied Fe/Mn ratios, for which the floatability changes with its composition. In this work, the effects of composition on floatability were studied using micro flotation, collector adsorption tests, infrared spectroscopy, and X-ray photoelectron …
The occurrence of either scheelite (CaWO4) or wolframite ([Fe,Mn]WO4) in tungsten deposits is generally explained by the Ca content of the host rocks, but scheelite/wolframite ratios in granitoids ...
1. Introduction. Tungsten is a critical strategic metal that is commonly employed in machinery, electric power, metallurgy, the chemical industry, and a variety of other fields [1].With the exploitation of mineral resources, the reserves of easy-to-sort wolframite are diminishing, and tungsten mineral resources are gradually shifting to …
The results of pure scheelite flotation show that scheelite ground by CB has a better floatability than that ground by CIB. ... EDS images of scheelite ground by CB, (c) SEM and (d) EDS images of ...
Minerals and Resources There are more than 30 kinds of tungsten minerals in nature, but tungsten minerals of industrial significance are mainly scheelite and wolframite, followed by Calcium tungsten molybdenum ore (CaMo)wo, and copper-tungsten (Cuwo). Wolframite can be divided into Ferberite, wolframite and huebnerite …
The activation mechanism of Pb(II) on the flotation of wolframite was systematically investigated. Micro- o-tation test results showed that Pb(II) effectively improved the …
With the depletion of easily mined and separated wolframite, scheelite has become the primary source of tungsten. Flotation is the primary technique used to enrich scheelite. However, flotation separation of scheelite from calcium-bearing gangue minerals, such as calcite and fluorite, has always been challenging due to their similar …
