INFLUENCE OF IMPURITIES IN BAUXITE TAILINGS ON PERFORMANCE OF MULLITE-BASED MULTIPHASE MATERIALS

GUO Bing-jun; MA Dong-yang; ZUO Liang-zhu; GUO Min; ZHANG Mei

doi:10.13205/j.hjgc.202110021

Volume 39 Issue 10

Jan. 2022

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2021 > 39(10): 150-156

GUO Bing-jun, MA Dong-yang, ZUO Liang-zhu, GUO Min, ZHANG Mei. INFLUENCE OF IMPURITIES IN BAUXITE TAILINGS ON PERFORMANCE OF MULLITE-BASED MULTIPHASE MATERIALS[J]. ENVIRONMENTAL ENGINEERING , 2021, 39(10): 150-156. doi: 10.13205/j.hjgc.202110021

Citation:

GUO Bing-jun, MA Dong-yang, ZUO Liang-zhu, GUO Min, ZHANG Mei. INFLUENCE OF IMPURITIES IN BAUXITE TAILINGS ON PERFORMANCE OF MULLITE-BASED MULTIPHASE MATERIALS[J]. ENVIRONMENTAL ENGINEERING , 2021, 39(10): 150-156. doi: 10.13205/j.hjgc.202110021

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INFLUENCE OF IMPURITIES IN BAUXITE TAILINGS ON PERFORMANCE OF MULLITE-BASED MULTIPHASE MATERIALS

doi: 10.13205/j.hjgc.202110021

1. Beijing Jingyeyuan New Materials Co., Ltd, Beijing 100088, China;
2. School of Metallurgy and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China

Received Date: 2020-12-02
Available Online: 2022-01-26

Abstract

Abstract

In this paper, bauxite tailings were used as the raw material, and the acid leaching impurity removal process was adopted, concentrates with different Fe₂O₃ and K₂O contents were obtained by controlling the concentration of hydrochloric acid and the liquid-solid ratio in the process of hydrochloric acid leaching. The influence mechanism of different binary impurity composition on the microscopic morphology, phase composition, normal temperature mechanical properties and high temperature performance of the samples was studied, and the optimal hydrochloric acid concentration and the leaching liquid-solid ratio were obtained. The results showed that when the content of Fe₂O₃ and K₂O in the tailings were both less than 2.0%, the crystalline phase content and load softening temperature of the material were higher; when the content of impurity Fe₂O₃ was greater than 2.0% and greatly increased, the amorphous phase content of the material increased rapidly, performance under high temperature decreased, but performance under room temperature increased. When controlling the content of Fe₂O₃ and K₂O in the bauxite tailings of less than 2%, the load softening temperature was maintained above 1400℃, which met the requirements of the standard for commercially available NZ-45 refractory bricks.
- hydrochloric acid concentration,
- liquid-solid ratio,
- impurity content,
- mullite refractory,
- bauxite tailings

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References(14)

References

[1]	COURTNEY R, MULLEN G, HARRINGTON T. An evaluation of revegetation success on bauxite residue[J]. Restoration Ecology, 2010, 17(3):350-358.
[2]	刘三军, 刘永, 李向阳,等. 铝土矿尾矿制备聚合氯化铝的浸出试验研究[J]. 南华大学学报(自然科学版), 2020,34(4):54-57,65.
[3]	BOZELLI R L. The influence of bauxite tailings on the cladoceran populations of lake batata, amazonia, brazil[J]. International Review of Hydrobiology, 2015, 81(4):621-634.
[4]	舒小妹, 桑绍柏, 伍书军,等. 高岭土制备轻质莫来石骨料及其对莫来石-碳化硅耐火材料性能的影响[J]. 耐火材料, 2020, 54(361):25-29.
[5]	马富刚, 梁晓军. 低导热多层复合莫来石砖在水泥窑的应用[J]. 新世纪水泥导报, 2019, 25(3):64-65.
[6]	王金相,钟香崇.氧化钾和氧化铁对烧结矾土(D-K型)相组成的影响[J].硅酸盐学报,1984,12(1):75-82.
[7]	刘东方, 刘文凯, 薛宝达,等. 铝土矿尾矿合成莫来石的研究[J]. 矿业科学学报, 2016, 1(3):256-260.
[8]	任允芙, 朱秦生. 某地铝矾土矿浮选尾矿合成莫来石的研究[C]//第四届全国工艺矿物学学术会议. 1987.
[9]	袁明亮, 汪艳梅, 胡岳华. 铝土矿尾矿除钛和铁及其采用表面改性[J]. 中国有色金属学报, 2007,17(12):2059-2064.
[10]	郭鑫, 陈湘清, 吴国亮. 铝土矿选尾矿除铁技术研究[C]//全国尾矿库安全运行高峰论坛暨设备展示会. 2014.
[11]	KUYS K, RALSTION J, SMART R S C. Surface characterization, iron removal and enrichment of bauxite ultrafines[J]. Engineering, Minerals, 1990, 5(3):421-435.
[12]	SZABÓ I, UJHIDY A, JELINKÓ R. Decrease of iron content of bauxite through high temperature chlorination[J]. Hungarian Journal Industrial Chemistry, 1989, 17(4):465-475.
[13]	刘万城, 李国兵. 铝土矿浮选尾矿络合酸浸除铁研究[J]. 轻金属, 2020(7):12-15.
[14]	李帅, 刘万超, 康泽双,等. 高硫铝土矿浮选尾矿制备聚合硫酸铝铁絮凝剂试验研究[J]. 湿法冶金, 2020,39(5):419-423.

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