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The action and mechanism of copolymer of maleic acid and acrylic acid (PMAA) in flotation separation of barite and fluorite in the presence of collector of sodium oleate were studied. A single mineral flotation test shows that sodium oleate has a good collecting for barite and fluorite, and PMAA has an obvious selective depressing effect on fluorite. A flotation test of artificially mixed minerals confirms that PMAA can achieve the separation of barite from fluorite in the presence of sodium oleate. A Zeta potential test shows that PMAA can hinder the adsorption of sodium oleate on the surface of fluorite, but cannot hinder its adsorption on barite surface. An XPS analysis shows that PMAA isn't effectively adsorbed on the surface of barite, but is chemically adsorbed on the surface of fluorite through the interaction between carboxyl groups of PMAA and calcium ions of fluorite, thus achieving the selective depression of fluorite during the flotation of barite with sodium oleate.

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研究了油酸钠体系下抑制剂马来酸-丙烯酸共聚物(PMAA)在浮选分离重晶石与萤石中的作用与机理。单矿物浮选试验结果表明,油酸钠对重晶石与萤石均具有很好的捕收性能,PMAA对萤石具有显著的选择性抑制作用;人工混合矿浮选结果证实了油酸钠体系下PMAA能实现重晶石与萤石的分离。Zeta电位测试结果表明,PMAA能阻碍油酸钠在萤石表面吸附,但不能阻碍油酸钠在重晶石表面吸附;XPS分析结果表明,PMAA在重晶石表面没有发生有效吸附,但PMAA能通过其分子中的羧基与萤石表面钙离子作用,在萤石表面发生化学吸附,从而实现油酸钠浮选重晶石过程中对萤石的选择性抑制。

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刘诚(1986—),男,江西九江人,博士,研究员,博士研究生导师,主要研究方向为矿物浮选理论与工艺。

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刘诚(1986—),男,江西九江人,博士,研究员,博士研究生导师,主要研究方向为矿物浮选理论与工艺。

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抑制剂马来酸-丙烯酸共聚物在浮选分离重晶石与萤石中的作用及机理
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刘诚 , 韩立伟 , 王田雨 , 杨思原 , 包申旭
矿冶工程杂志 | 选矿 2023,43(6): 62-65
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矿冶工程杂志 | 选矿 2023, 43(6): 62-65
抑制剂马来酸-丙烯酸共聚物在浮选分离重晶石与萤石中的作用及机理
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刘诚, 韩立伟, 王田雨, 杨思原, 包申旭
作者信息
  • 武汉理工大学 资源与环境工程学院,湖北 武汉 430070
  • 刘诚(1986—),男,江西九江人,博士,研究员,博士研究生导师,主要研究方向为矿物浮选理论与工艺。

Action and Mechanism of Copolymer of Maleic Acid and Acrylic Acid as a Depressant in Flotation Separation of Barite and Fluorite
Cheng LIU, Liwei HAN, Tianyu WANG, Siyuan YANG, Shenxu BAO
Affiliations
  • School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan 430070, Hubei, China
出版时间: 2023-12-01 doi: 10.3969/j.issn.0253-6099.2023.06.013
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研究了油酸钠体系下抑制剂马来酸-丙烯酸共聚物(PMAA)在浮选分离重晶石与萤石中的作用与机理。单矿物浮选试验结果表明,油酸钠对重晶石与萤石均具有很好的捕收性能,PMAA对萤石具有显著的选择性抑制作用;人工混合矿浮选结果证实了油酸钠体系下PMAA能实现重晶石与萤石的分离。Zeta电位测试结果表明,PMAA能阻碍油酸钠在萤石表面吸附,但不能阻碍油酸钠在重晶石表面吸附;XPS分析结果表明,PMAA在重晶石表面没有发生有效吸附,但PMAA能通过其分子中的羧基与萤石表面钙离子作用,在萤石表面发生化学吸附,从而实现油酸钠浮选重晶石过程中对萤石的选择性抑制。

油酸钠  /  重晶石  /  萤石  /  马来酸-丙烯酸共聚物  /  浮选  /  抑制剂

The action and mechanism of copolymer of maleic acid and acrylic acid (PMAA) in flotation separation of barite and fluorite in the presence of collector of sodium oleate were studied. A single mineral flotation test shows that sodium oleate has a good collecting for barite and fluorite, and PMAA has an obvious selective depressing effect on fluorite. A flotation test of artificially mixed minerals confirms that PMAA can achieve the separation of barite from fluorite in the presence of sodium oleate. A Zeta potential test shows that PMAA can hinder the adsorption of sodium oleate on the surface of fluorite, but cannot hinder its adsorption on barite surface. An XPS analysis shows that PMAA isn't effectively adsorbed on the surface of barite, but is chemically adsorbed on the surface of fluorite through the interaction between carboxyl groups of PMAA and calcium ions of fluorite, thus achieving the selective depression of fluorite during the flotation of barite with sodium oleate.

sodium oleate  /  barite  /  fluorite  /  copolymer of maleic acid and acrylic acid  /  flotation  /  depressant
刘诚, 韩立伟, 王田雨, 杨思原, 包申旭. 抑制剂马来酸-丙烯酸共聚物在浮选分离重晶石与萤石中的作用及机理. 矿冶工程杂志, 2023 , 43 (6) : 62 -65 . DOI: 10.3969/j.issn.0253-6099.2023.06.013
Cheng LIU, Liwei HAN, Tianyu WANG, Siyuan YANG, Shenxu BAO. Action and Mechanism of Copolymer of Maleic Acid and Acrylic Acid as a Depressant in Flotation Separation of Barite and Fluorite[J]. Mining and Metallurgical Engineering, 2023 , 43 (6) : 62 -65 . DOI: 10.3969/j.issn.0253-6099.2023.06.013
  • 国家级大学生创新创业训练计划项目(202210497106)
  • 国家重点研发计划(2022YFC2905800)
  • 国家自然科学基金(52274269)
2023年第43卷第6期
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doi: 10.3969/j.issn.0253-6099.2023.06.013
  • 接收时间:2023-06-11
  • 首发时间:2026-03-05
  • 出版时间:2023-12-01
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  • 收稿日期:2023-06-11
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国家级大学生创新创业训练计划项目(202210497106)
国家重点研发计划(2022YFC2905800)
国家自然科学基金(52274269)
作者信息
    武汉理工大学 资源与环境工程学院,湖北 武汉 430070
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2种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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