BPMA 导向的某高硫铝土矿浮选脱硫工艺研究

金属矿山 ›› 2026, Vol. 55 ›› Issue (2): 128-137.

BPMA 导向的某高硫铝土矿浮选脱硫工艺研究

李红妍¹　唐　云¹　王在谦²　邓政斌¹　方添添¹　秦　浪³　钱万拾¹　石韬炜¹

1. 贵州大学矿业学院,贵州贵阳 550025;2. 贵州成黔矿业科技有限公司,贵州贵阳 550000;
3. 贵州铝业集团有限公司,贵州贵阳 550001

出版日期:2026-02-15 发布日期:2026-03-03
通讯作者: 邓政斌(1986—),男,讲师,博士。
作者简介:李红妍(2002—),女,硕士研究生。
基金资助:
贵州省科技计划项目(编号:黔科合基础-[2024]青年140)。

Study on Flotation Desulfurization Process of a High-Sulfur Bauxite Guided by BPMA

LI Hongyan¹　TANG Yun¹　WANG Zaiqian²　DENG Zhengbin¹　FANG Tiantian¹　QIN Lang³ QIAN Wanshi¹　SHI Taowei¹#br#

1. School of Mining,Guizhou University,Guiyang 550025,China;2. Guizhou Chengqian Mining Technology Co. ,Ltd. ,
Guiyang 550000,China;3. Guizhou Aluminum Industry Group Co. ,Ltd. ,Guiyang 550001,China

Online:2026-02-15 Published:2026-03-03

摘要/Abstract

摘要： 为实现贵州某高硫铝土矿的高效利用,本研究采用基于扫描电子显微镜(SEM)与能谱仪(EDS)的工艺
矿物学自动分析系统(BPMA),对Al2O3 品位为56. 16%、硫含量达4. 58%的矿石进行了系统的工艺矿物学研究。研
究精确揭示了铝、硫元素的赋存状态与主要矿物的嵌布特征,并以此为指导进行浮选脱硫试验。通过条件优化,确定
了最佳工艺参数:磨矿细度-75 μm 占85%、矿浆pH=6、以CuSO4 为活化剂(50 g/ t)、组合捕收剂丁基黄药+丁铵黑药
(30+120 g/ t)。最终,采用1 粗2 精3 扫闭路浮选流程处理,成功获得了产率为82. 85%、Al2O3 品位为65. 05%、硫含
量降至0. 48%、铝硅比(A/ S)为12. 19 的优质铝精矿,其中Al2O3 回收率达95. 96%、脱硫率为91. 29%。研究表明,
BPMA 技术能为浮选工艺开发提供关键的矿物学依据,本研究为此类高硫铝土矿的高效分选与资源化利用提供了可
靠的技术方案和实践借鉴。

关键词: 一水硬铝石　黄铁矿　脱硫浮选　BPMA　工艺矿物学

Abstract: To achieve the efficient utilization of high-sulfur bauxite from Guizhou,this study employed process mineralogy
analysis system (BPMA) based on Scanning Electron Microscopy (SEM) and Energy Dispersive Spectroscopy (EDS) to conduct
a systematic mineralogical characterization of an ore sample assaying Al2O3 of 56. 16% and S of 4. 58%. The study accurately
revealed the occurrence states of aluminum and sulfur,as well as the dissemination characteristics of the main minerals,
which guided the subsequent flotation desulfurization tests. Through condition optimization,the optimal parameters were determined
as follows:grinding fineness of 85% passing 75 μm,natural pulp (pH=6),CuSO4 as activator (50 g/ t),and butyl xanthate
mixed with ammonium butyl aerofloat as combined collector (30+120 g/ t). A closed-circuit flotation flowsheet consisting
of "one roughing,two cleaning,and three scavenging" stages was finally adopted,successfully producing a high-quality aluminum
concentrate with a yield of 82. 85%,containing 65. 05% Al2O3 and only 0. 48% S,corresponding to an aluminum-silicon
ratio (A/ S) of 12. 19. The Al2O3 recovery and desulfurization rate reached 95. 96% and 91. 29%,respectively. This research
demonstrates that BPMA technology can provide critical mineralogical basis for flotation process development,offering a reliable
technical solution and practical reference for the efficient beneficiation and utilization of such high-sulfur bauxite resources.

Key words: diaspore,pyrite,desulfurization flotation,BPMA,process mineralogy

中图分类号:

李红妍　唐　云　王在谦　邓政斌　方添添　秦　浪　钱万拾　石韬炜. BPMA 导向的某高硫铝土矿浮选脱硫工艺研究[J]. 金属矿山, 2026, 55(2): 128-137.

LI Hongyan　TANG Yun　WANG Zaiqian　DENG Zhengbin　FANG Tiantian　QIN Lang QIAN Wanshi　SHI Taowei. Study on Flotation Desulfurization Process of a High-Sulfur Bauxite Guided by BPMA[J]. Metal Mine, 2026, 55(2): 128-137.

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