探讨六偏磷酸钠在煤泥浮选中的作用

IF 1.3 4区工程技术 Q4 CHEMISTRY, PHYSICAL

Physicochemical Problems of Mineral Processing Pub Date : 2023-03-15 DOI:10.37190/ppmp/162075

Tian Lu, Z. Deng, Yun Tang, Hai-xiang Tang

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引用次数: 0

摘要

本文研究了六偏磷酸钠(SHMP)对煤泥浮选的影响，并通过XRD测试、接触角测量、zeta电位测试、扫描电镜分析、XPS分析和DLVO理论计算，揭示了SHMP与煤泥浮选颗粒之间的相互作用。实验结果表明，当SHMP用量为1500 g/t时，洁净煤可燃物回收率提高了9.61%。SHMP降低了煤泥浮选过程中粘土矿物(高岭石)的疏水性，提高了煤泥颗粒的分散性。扫描电镜和能量色散分析表明，SHMP减少了煤表面的粘土颗粒(高岭石)数量，从而降低了洁净煤的灰分含量。本文主要利用SHMP对高岭石表面进行改性，降低矿物的疏水性，即提高煤泥浮选中清洁煤可燃物的回收率。

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Exploring the effect of sodium hexametaphosphate in coal slime flotation

In this paper, the influence of sodium hexametaphosphate (SHMP) in coal slime flotation was studied, and the interaction between SHMP and coal slime flotation particles was revealed through XRD test, contact angle measurement, zeta potential test, scanning electron microscopy analysis, XPS analysis, and DLVO theoretical calculation. The experimental results show that when the dosage of SHMP is 1500 g/t, the recovery rate of clean coal combustibles increases by 9.61 %. SHMP reduces the hydrophobicity of clay minerals (kaolinite) in coal slime flotation and also enhances the dispersibility of coal slime particle. Scanning electron microscopy and energy dispersive analysis showed that SHMP reduced the number of clay particles (kaolinite) on the coal surface, thereby reducing the ash content of the clean coal. In this paper, SHMP is mainly used to modify the surface of kaolinite so as to reduce the hydrophobicity of the mineral, that is, to improve the recovery rate of clean coal combustibles in coal slime flotation.

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来源期刊

Physicochemical Problems of Mineral Processing CHEMISTRY, PHYSICAL-MINING & MINERAL PROCESSING

自引率

6.70%

发文量

期刊介绍： Physicochemical Problems of Mineral Processing is an international, open access journal which covers theoretical approaches and their practical applications in all aspects of mineral processing and extractive metallurgy. Criteria for publication in the Physicochemical Problems of Mineral Processing journal are novelty, quality and current interest. Manuscripts which only make routine use of minor extensions to well established methodologies are not appropriate for the journal. Topics of interest Analytical techniques and applied mineralogy Computer applications Comminution, classification and sorting Froth flotation Solid-liquid separation Gravity concentration Magnetic and electric separation Hydro and biohydrometallurgy Extractive metallurgy Recycling and mineral wastes Environmental aspects of mineral processing and other mineral processing related subjects.