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 …
Owing to the depletion of wolframite, the focus of tungsten extraction has gradually shifted to scheelite. However, separating the associated minerals (e.g., apatite, fluorite, and calcite) and scheelite is challenging because their surface physicochemical properties are similar to those of scheelite. Fortunately, researchers have made …
Most non-US ore is derived from wolframite (Fe,Mn)WO 4, whereas scheelite is the dominant source of tungsten ore in the US. Aggregates of scheelite showing bright fluorescence in shortvawe UV …
Acid leaching is considered an appropriate method for the tungsten concentrate treatment. However, it is difficult to leach wolframite efficiently. To reveal the origin of this behavior, the leaching behaviors of scheelite and wolframite in treating a mixed scheelite–wolframite concentrate by hydrochloric acid and the leaching …
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 ...
Micro-flotation tests proved that NPOHA possessed much stronger collecting ability to wolframite than BHA and OHA, with superb flotation selectivity against quartz and fluorite, which was regarded ...
In this paper, N-[(3-hydroxyamino)-propoxy]-N-hexyl dithiocarbamate (HAHD) was designed to strengthen the flotation recovery of wolframite. The in situ AFM images clearly exhibited that the pre ...
The flotation enrichment of fine-particle wolframite played a crucial role in production of strategic key metal tungsten. In this paper, N-[(3-hydroxyamino)-propoxy]-N-hexyl dithiocarbamate (HAHD ...
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 …
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 … Expand
Scheelite was successfully prepared by solid-state calcination synthesis using wolframite [(Fe,Mn)WO 4] and calcium carbonate as materials in air atmosphere. The effects of processing parameters, such as calcination temperature, holding time and calcium carbonate dosage on conversion ratio of wolframite were investigated. 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 ...
Scheelite flotation is a more effective method for separating and extracting tungsten concentrate. Its efficiency largely depends on the selection and configuration of …
Scheelite deposits typically contain coexisting minerals such as calcite, dolomite, and fluorite. As these minerals share similar surface properties with scheelite, …
In this paper, N-[(3-hydroxyamino)-propoxy]-N-hexyl dithiocarbamate (HAHD) was designed to strengthen the flotation recovery of wolframite. The in situ AFM images clearly exhibited that the pre ...
As an important strategic metal, tungsten is widely used in military applications, aerospace, light industry, textiles, electronic technology, and the chemical industry [1,2,3].Wolframite ((Fe,Mn)WO 4) is a very important mineral raw material used for tungsten refining.Flotation is one of the most important means to obtain high-purity …
Scheelite (CaWO 4) is one of the main sources of tungsten, alongside with the other monotungstates stolzite (PbWO 4) and wolframite (a solid solution of …
In this paper, the progress and prospects of scheelite flotation chemistry and its practice are summarized, encompassing various fields — such as crystal …
Tungsten ore is mainly divided into scheelite and wolframite. Wolframite is the oxide of tungsten, and scheelite is calcium tungsten. Although scheelite reserves are large, there are fewer rich ores, lower grade, and more difficult-to-select ores, so the mining volume only accounts for about 10% of tungsten ore production.
Scheelite, wolframite, and cassiterite can be well collected in the roughing flotation with the recovery rate at 81.81%, 78.48%, and 68.86%. ...
Scheelite and wolframite are the two most important tungsten resources in nature. Since the wolframite ((Fe, Mn)WO4) is more easily enriched by gravity methods and is easier to exploit and utilize ...
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 … Expand
An efficiently optimized reagent regime was investigated to improve scheelite heating flotation. The scheelite grade and recovery in the plant were significantly improved by 5% and 6%, respectively, which remarkably augmented the economic profit by $260,000 per month. The interaction mechanisms of sodium sulfide …
The development of scheelite flotation reagents in the future is envisioned, aiming at achieving efficient flotation enrichment of scheelite, reduce production costs …
Semantic Scholar extracted view of "Effects of surface electrical property and solution chemistry on fine wolframite flotation" by Xiuli Yang et al. ... A wolframite and scheelite associated ore contains lots of gangue minerals abundant with calcium and magnesium,which affects the recovery of tungsten.In order to solve the technical …
Download Table | Grade and recovery of scheelite, wolframite, and cassiterite in different flotation units. from publication: Beneficiation and Purification of Tungsten and Cassiterite Minerals ...
Wolframite is often associated with calcium bearing minerals, leading to low grade, while conventional anionic collectors are hard to realize their efficient flotation separation, thus the effective structural modification of cationic collectors provides a new insight into enhancing the comprehensive development of wolframite resources.
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 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 …
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 …
Nowadays, with the depletion of high-grade scheelite resources, the efficient exploitation of complex, low grade with complicated geological structure scheelite ore have to take into account. This work introduces a feasible mineral processing method for the beneficiation of low grade and complex scheelite using the X-ray transmission …
Tungsten ore is divided into two types: wolframite and scheelite. Wolframite beneficiation is mainly gravity separation, supplemented by magnetic separation.Scheelite beneficiation mainly uses gravity separation, magnetic separation and flotation.. Different tungsten ore properties adopt different tungsten ore beneficiation process.
Semantic Scholar extracted view of "Study on the role of a hydroxamic acid derivative in wolframite flotation: Selective separation and adsorption mechanism" by Yuxi Lu et al. Skip to search form Skip to ... The DFT study of cyclohexyl hydroxamic acid as a collector in scheelite flotation. Gang Zhao Hong Zhong +5 authors Guangyi Liu. Chemistry ...
Wolframite and scheelite are two critical sources of tungsten. At present, flotation is an efficient mineral processing method to recover tungsten ores of low grade and fine grain. Fatty acid is usually used as a collector of scheelite but has weak effects on wolframite flotation. ... (II) appears to have little activation on wolframite ...
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 ...
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.
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 present work aims to build a foundation for the efficient recovery of fine wolframite by analyzing the flotation behaviors of different monominerals. Wolframite and scheelite are the main valuable minerals, calcite, fluorite and quartz are the main gangue minerals in the tungsten ores.
To sum up, by introducing DOPA as the novel collector in wolframite flotation, this study discusses the role of the collector of amidoxime group in flotation separation of wolframite from calcite and fluorite, which provides a novel insight into separating wolframite from calcium bearing minerals by flotation. ... Scheelite (CaWO …
