利用新型抑制剂聚（4-苯乙烯磺酸钠）从方解石中浮选分离白钨矿

IF 4.2 2区工程技术 Q2 ENGINEERING, CHEMICAL

Advanced Powder Technology Pub Date : 2024-09-27 DOI:10.1016/j.apt.2024.104664

Jiali Chen, Peng Gao, Jie Liu, Yimin Zhu

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引用次数: 0

摘要

白钨矿和方解石首先通过新型抑制剂聚（4-苯乙烯磺酸钠）（PSS）与 NaOL 系统进行分离。在 10 mg/L NaOL、10 mg/L PSS 和 pH 值为 8 的最佳条件下，人工混矿浮选白钨矿的回收率为 87.18%，方解石的回收率为 5.57%；WO3 的回收率和品位分别为 70.53%和 61.08%。为揭示反应机理，还进行了接触角测量、原子力显微镜分析、ZETA 电位分析、傅立叶变换红外光谱分析和 X 射线光电子能谱分析。结果表明，PSS 不能通过化学反应吸附在白钨矿上，并且 PSS 对 NaOL 在白钨矿表面的进一步吸附没有影响。因此，白钨矿在使用 PSS 后仍能保持较高的回收率。然而，PSS 可通过方解石的 Ca 位点和 PSS 的 O 位点之间的化学吸附作用强力吸附在方解石上，从而增加了方解石的憎水性，阻碍了 NaOL 的进一步吸附。因此，它可以选择性地抑制方解石的浮选。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Flotation separation scheelite from calcite by using a novel depressant of Poly(sodium 4-styrenesulfonate)

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Flotation separation scheelite from calcite by using a novel depressant of Poly(sodium 4-styrenesulfonate)

Scheelite and calcite was firstly separated by new depressant Poly(sodium 4-styrenesulfonate) (PSS) with NaOL system. The recovery of scheelite was 87.18 % and the recovery of calcite was 5.57 % in single flotation experiments, the recovery and grade of WO₃ was 70.53 % and 61.08 % respectively in artificial mixed ore flotation under the optimal conditions of 10 mg/L NaOL, 10 mg/L PSS and pH of 8. Contact angle measurements, atomic force microscope (AFM) analysis, zeta potential analysis, fourier transforming infrared spectra (FT-IR) analysis and X-ray photoelectron spectroscopy (XPS) analysis were performed to uncover the reaction mechanism. The results showed that PSS could not adsorbed on scheelite by chemical reaction, and PSS had no impact on the further adsorption of NaOL onto the scheelite surface. Therefore, scheelite could still keep a high recovery with PSS. However, PSS could be strongly adsorbed on calcite by chemisorption between the Ca site of calcite and O site of PSS, which increased the hydrophilia of calcite and imped the further adsorption of NaOL. Therefore, it could selectively depress the flotation of calcite.

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来源期刊

Advanced Powder Technology 工程技术-工程：化工

CiteScore

9.50

自引率

7.70%

发文量

424

审稿时长

55 days

期刊介绍： The aim of Advanced Powder Technology is to meet the demand for an international journal that integrates all aspects of science and technology research on powder and particulate materials. The journal fulfills this purpose by publishing original research papers, rapid communications, reviews, and translated articles by prominent researchers worldwide. The editorial work of Advanced Powder Technology, which was founded as the International Journal of the Society of Powder Technology, Japan, is now shared by distinguished board members, who operate in a unique framework designed to respond to the increasing global demand for articles on not only powder and particles, but also on various materials produced from them. Advanced Powder Technology covers various areas, but a discussion of powder and particles is required in articles. Topics include: Production of powder and particulate materials in gases and liquids(nanoparticles, fine ceramics, pharmaceuticals, novel functional materials, etc.); Aerosol and colloidal processing; Powder and particle characterization; Dynamics and phenomena; Calculation and simulation (CFD, DEM, Monte Carlo method, population balance, etc.); Measurement and control of powder processes; Particle modification; Comminution; Powder handling and operations (storage, transport, granulation, separation, fluidization, etc.)