Selective collection performance of an efficient quartz collector and its response to flotation separation of malachite from quartz

Yang, Bin; Fu, Yanghe; Yin, Wanzhong; Sheng, Qiuyue; Zhu, Zhanglei; Yin, Xue-Ming

doi:10.1016/j.mineng.2021.107174

Cited by 15 publications

(5 citation statements)

References 59 publications

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“…These inclusions primarily comprise micron-scale particles rangin from 1 to 10 μm, sub-micron particles in the range of 0.1 to 1 μm, impurities at the na nometer scale, and atomic clusters smaller than 1 nm [22]. Presently, research has predom inantly focused on blue igneous rock quartz; however, the prevalence of sub-micron and nanometer-scale solid inclusions in natural quartz remains uncertain [23,24]. Taking gran ite quartz as an example, the morphology of micron-scale mineral inclusions can be ob served under a microscopy (ZEISS Axioscope 5), as illustrated in Figure 6.…”

Section: Fluid Inclusionsmentioning

confidence: 99%

Research Status and Challenges of High-Purity Quartz Processing Technology from a Mineralogical Perspective in China

Zhang,

Tang,

et al. 2023

Minerals

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Quartz deposits are widely dispersed in nature, but the presence of ore bodies capable of yielding high-purity quartz is exceedingly rare. As a result, the effective purification and processing of high-purity quartz from natural siliceous materials has emerged as a prominent area of research within the non-metallic mineral processing field. This article offers an overview of the current state of research and its limitations in quartz purification and processing technology in China, including the characteristics of quartz mineral resources, the geological origins of ore deposits, impurity forms in ores, and purification techniques. Drawing from examples of five distinct types of quartz ores—vein quartz, powder quartz, quartzite, granitic pegmatite, and pegmatitic granite—we delve into the inherent properties of quartz deposits, ores, and minerals from a mineralogical perspective, establishing their link to purification and processing methodologies. A fundamental challenge restraining the advancement of the high-purity quartz industry is the absence of criteria for evaluating and selecting high-purity quartz raw materials. Existing purification technologies grapple with issues such as intricate single mineral liberation, substantial acid consumption, high energy requirements, and protracted processing procedures. The lack of mineralogically based deep purification techniques presents a hurdle to the development of the high-purity quartz industry. Given the diversity of ore types, the pursuit of knowledge-driven design and the development of economically efficient, environmentally friendly, and streamlined new technologies for tackling the complexities of the purification process may constitute the future direction of our endeavors.

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Section: Fluid Inclusionsmentioning

confidence: 99%

Research Status and Challenges of High-Purity Quartz Processing Technology from a Mineralogical Perspective in China

Zhang,

Tang,

et al. 2023

Minerals

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“…However, a massive volume of materials must be fed to the flotation circuits for upgrading hematite from these low-grade ores, which require a substantial quantity of reagents. These facts emerge from using selective and eco-friendly flotation chemicals throughout the process, enhancing process efficiency and reducing potential environmental issues 7 , 8 . Thus, several investigations have been conducted to explore a green approach for upgrading low-grade hematite ores by considering eco-friendly biodegradable depressants 1 , 9 – 17 .…”

Section: Introductionmentioning

confidence: 99%

Green hematite depression for reverse selective flotation separation from quartz by locust bean gum

Kordloo

Khodadadmahmoudi

Ebrahimi

et al. 2023

Sci Rep

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Reverse cationic flotation is currently the main processing technique for upgrading fine hematite from silicates. Flotation is known as an efficient method of mineral enrichment that deals with possibly hazardous chemicals. Thus, using eco-friendly flotation reagents for such a process is an emerging need for sustainable development and green transition. As an innovative approach, this investigation explored the potential of locust bean gum (LBG) as a biodegradable depressant for the selective separation of fine hematite from quartz through reverse cationic flotation. Various flotation conditions (micro and batch flotation) were conducted, and the mechanisms of LBG adsorption have been examined by different analyses (contact angle measurement, surface adsorption, zeta potential measurements, and FT-IR analysis). The micro flotation outcome indicated that the LBG could selectively depress hematite particles with negligible effect on quartz floatability. Flotation of mixed minerals (hematite and quartz mixture in various ratios) indicated that LGB could enhance separation efficiency (hematite recovery > 88%). Outcomes of the surface wettability indicated that even in the presence of the collector (dodecylamine), LBG decreased the hematite work of adhesion and had a slight effect on quartz. The LBG adsorbed selectively by hydrogen bonding on the surface of hematite based on various surface analyses.

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“…Fu et al [21] quantified the surface active site of dodecylamineadsorbed quartz and the surface complexation. Liu et al [22] synthesized an agent with better foaming ability than DDA: N-dodecyl-isopropanolamine using dodecylamine and 1,2-epoxypropane as raw materials in an ethanol solution at 35 • C. The new trap was also found to have excellent floatability and selectivity for quartz, and the most commonly used in practice is the traditional cationic trap dodecyl amine (DDA), which generally traps quartz to achieve the reverse flotation of quartz with other minerals [23][24][25]. DDA suffers from low selectivity, low water solubility, and acidic conditions in the flotation process, resulting in a low concentrate grade, low flotation, low efficiency, and strong acids that are harmful to the environment [26,27].…”

Section: Introductionmentioning

confidence: 99%

Mechanism of Modified Ether Amine Agents in Petalite and Quartz Flotation Systems under Weak Alkaline Conditions

Zhou

Chen

et al. 2023

Minerals

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To investigate the flotation separation behavior of petalite and quartz, various methods were employed in this study. These included micro-flotation experiments, a contact angle analysis, zeta potential analysis, Fourier transform infrared spectroscopy (FTIR), and X-ray photoelectron spectroscopy (XPS) to explore the separation mechanism of a modified ether amine reagent (L0-503) for petalite and quartz under weakly alkaline conditions. The micro-flotation test results indicated that the modified ether amine collector had a higher collecting ability for quartz than for petalite, with a maximum recovery rate of 93.2% for quartz and a recovery rate consistently below 14% for petalite in the presence of L0-503. This indicates that the modified ether amine reagent can be used as a reverse flotation agent for separating petalite and quartz. The separation mechanism results showed that the modified ether amine reagent had a significantly higher adsorption capacity for quartz than for petalite due to a strong reaction between the quartz and the secondary amine (-NH=) on the modified ether amine collector. Additionally, the electrostatic force and hydrogen bonding between the reagent and quartz further enhanced the adsorption, while no reaction occurred between the reagent and petalite.

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Selective collection performance of an efficient quartz collector and its response to flotation separation of malachite from quartz

Cited by 15 publications

References 59 publications

Research Status and Challenges of High-Purity Quartz Processing Technology from a Mineralogical Perspective in China

Research Status and Challenges of High-Purity Quartz Processing Technology from a Mineralogical Perspective in China

Green hematite depression for reverse selective flotation separation from quartz by locust bean gum

Mechanism of Modified Ether Amine Agents in Petalite and Quartz Flotation Systems under Weak Alkaline Conditions

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