【引用本文】 徐颖, 邓利蓉, 芦玉峰, 等. 热处理对柯尔碱膨润土微观结构和物化性能的影响[J]. 岩矿测试, 2019, 38(3): 280-287. doi: 10.15898/j.cnki.11-2131/td.201804190062
XU Ying, DENG Li-rong, LU Yu-feng, et al. Effect of Thermal Treatment on the Composition and Physicochemical Properties of Bentonite from the Kerjian Region, Xinjiang[J]. Rock and Mineral Analysis, 2019, 38(3): 280-287. doi: 10.15898/j.cnki.11-2131/td.201804190062

热处理对柯尔碱膨润土微观结构和物化性能的影响

西北核技术研究所, 陕西 西安 710024

收稿日期: 2018-04-19  修回日期: 2018-08-22  接受日期: 2019-03-07

作者简介: 徐颖, 硕士, 助理工程师, 从事矿物学与矿物材料学研究工作。E-mail:xuying.0703@163.com

Effect of Thermal Treatment on the Composition and Physicochemical Properties of Bentonite from the Kerjian Region, Xinjiang

Northwest Institute of Nuclear Technology, Xi'an 710024, China

Received Date: 2018-04-19
Revised Date: 2018-08-22
Accepted Date: 2019-03-07

摘要:膨润土的热稳定性及其热处理过程中微结构和性能的变化直接影响着膨润土在矿物材料领域的应用,因此研究热处理过程中膨润土成分结构的演化以及表面性质的变化具有重要意义。目前对膨润土的研究多集中在钠化改型、有机化改性以及改型改性后的结构和性能方面,而对膨润土热处理过程中的微观结构和物化性能变化研究有待加强。本文以新疆柯尔碱膨润土为研究对象,在不同温度下进行热处理,利用X射线荧光光谱法分析原土的化学成分,通过同步热分析、X射线衍射、红外光谱以及扫描电镜等技术对热处理产物进行了物相分析和结构表征,并研究了比表面积、吸蓝量及胶质价在升温过程中的变化特征。结果表明:随着热处理温度的升高,柯尔碱膨润土的比表面积逐渐减少,物相组成和结构都发生了很大变化。加热到600℃后,膨润土的吸蓝量和胶质价急剧下降,其主要成分蒙脱石八面体片中的羟基开始脱出,层状结构发生破坏;800℃后蒙脱石相已经消失;1000℃时产生新的矿相——堇青石,粉末颗粒出现熔融现象;1200℃后转变为方石英相,颗粒基本完全熔融,重结晶现象明显。研究认为,600℃时柯尔碱膨润土的膨胀性和分散性基本丧失,矿物物化性能失效。

关键词: 膨润土, 热处理温度, 物相组成, 微观结构, 蒙脱石

要点

(1) 对柯尔碱膨润土进行不同温度的热处理并对产物物相结构和性能进行测试表征。

(2) 在热处理过程中该膨润土的物相结构和性能发生了很大变化。

(3) 热处理对膨润土结构和性能有显著影响。

Effect of Thermal Treatment on the Composition and Physicochemical Properties of Bentonite from the Kerjian Region, Xinjiang

ABSTRACT

BACKGROUND:

The thermal stability of bentonite and the changes of microstructure and property during heat treatment directly affect the application of bentonite in the field of mineral materials. Therefore, it is important to study the evolution of the composition and structure, and the change of surface properties of bentonite during heat treatment. Currently, the research of bentonite is concentrated in sodium modification, organic modification and retrofit of the modified structure and performance. The study of the changes in microstructure and physicochemical properties during the heat treatment of bentonite needs to be strengthened.

OBJECTIVES:

To investigate the microstructure and physicochemical property as a function of thermal treatment of bentonite from the Kerjian region in Xinjiang.

METHODS:

Bentonite from the Kerjian region in Xinjiang was heated at various temperatures. The chemical constituents of the original soil were analyzed by X-ray Fluorescence Spectrometry. The phase analysis and structural characterization of the heat-treated products were carried out by simultaneous thermal analysis, X-ray Diffraction, Infrared Spectroscopy and Scanning Electron Microscopy. The changes of specific surface area, methylene blue value and the gelling value during the heating process were studied.

RESULTS:

With the increase of heat treatment temperature, the specific surface area of Kerjian bentonite decreased gradually, and the phase composition and structure changed greatly. When heated to 600℃, the blue absorption and colloid value of bentonite decreased sharply, and the hydroxyl groups in the main component montmorillonite octahedron sheet began to break out, while the layered structure was damaged. The montmorillonite phase disappeared above 800℃. A new mineral phase cordierite was produced at 1000℃. Above 1200℃, the mineral was transformed into quartzite phase, the particles were completely melted, and the recrystallization was obvious.

CONCLUSIONS:

It is concluded that the expansibility and dispersion of Kerjian bentonite are basically lost at 600℃, and the mineral physicochemical properties are invalid.

KEY WORDS: bentonite, thermal treatment, phase composition, microstructure, montmorillonite

HIGHLIGHTS

(1) Bentonite from the Kerjian region in Xinjiang was heated at various temperatures to characterize the product phase structure and properties.

(2) The phase composition and physicochemical properties of bentonite were greatly affected by thermal treatment.

(3) Thermal treatment had a significant effect on the structure and performance of bentonite.

本文参考文献

[1]

彭杨伟, 孙燕. 国内外膨润土的资源特点及市场现状[J]. 金属矿山, 2012, (4): 95-99. doi: 10.3969/j.issn.1001-1250.2012.04.025

Peng Y W, Sun Y. Resoureces characteristics and market situation of bentonites at home and abroad[J].Metal Mine, 2012, (4): 95-99. doi: 10.3969/j.issn.1001-1250.2012.04.025

[2]

林涛, 任建晓, 殷学风, 等. 建平膨润土的提纯工艺探索及其表征[J]. 岩石矿物学杂志, 2013, 32(3): 401-404. doi: 10.3969/j.issn.1000-6524.2013.03.012

Lin T, Ren J X, Yin X F, et al. An exploration of the purification of Jianping bentonite and its characterization[J].Acta Petrologica et Mineralogical, 2013, 32(3): 401-404. doi: 10.3969/j.issn.1000-6524.2013.03.012

[3]

孙红娟, 彭同江, 刘颖, 等. 蒙脱石的晶体化学式计算与分类[J]. 人工晶体学报, 2008, 37(2): 350-355.

Sun H J, Peng T J, Liu Y, et al. Calculation of crystal chemical formula of montmorillonite and classification[J]. Journal of Synthetic Crystals, 2008, 37(2): 350-355.

[4]

姜桂兰,张培萍. 膨润土加工与应用[M] . 北京: 化学工业出版社, 2005: 4-5.

Jiang G L,Zhang P P. Processing and Application of Bentonite[M] . Beijing: Chemical Industry Press, 2005: 4-5.
[5]

翟传鑫, 李炎, 马向东, 等. 蒙脱土的高温相变及微观结构表征[J]. 河南科技大学学报(自然科学版), 2012, 33(1): 1-4. doi: 10.3969/j.issn.1672-6871.2012.01.001

Zhai C X, Li Y, Ma X D, et al. Phases transition and microstructure of montmorillonite at high temperature[J].Journal of Henan University of Science and Technology (Natural Science), 2012, 33(1): 1-4. doi: 10.3969/j.issn.1672-6871.2012.01.001

[6]

孙红娟, 彭同江, 陈彦翠, 等. 层间阳离子对蒙脱石结构与水化膨胀性能的影响[J]. 非金属矿, 2011, 34(1): 11-13. doi: 10.3969/j.issn.1000-8098.2011.01.004

Sun H J, Peng T J, Chen Y C, et al. Influence of interlayer cations on structure and hydro-expansive property of montmorillonite[J].Non-Metallic Mines, 2011, 34(1): 11-13. doi: 10.3969/j.issn.1000-8098.2011.01.004

[7]

王桂萍, 李真, 王桂燕, 等. 膨润土的改性方法及其在废水处理中的应用研究进展[J]. 沈阳理工大学学报, 2010, 29(4): 88-93. doi: 10.3969/j.issn.1003-1251.2010.04.023

Wang G P, Li Z, Wang G Y, et al. Advances in bentonite modification methods and its application in wastewater treatment[J].Journal of Shenyang Ligong University, 2010, 29(4): 88-93. doi: 10.3969/j.issn.1003-1251.2010.04.023

[8]

王文中. 膨润土的改性及应用[J]. 铸造技术, 2017, 38(5): 1210-1213.

Wang W Z. Modifaication andappication of bentonite[J]. Foundry Technology, 2017, 38(5): 1210-1213.

[9]

张峰, 李建东, 原渊, 等. 膨润土止水环封孔在地浸采铀钻孔成井工艺中的应用[J]. 中国矿业, 2016, 25(11): 157-161. doi: 10.3969/j.issn.1004-4051.2016.11.032

Zhang F, Li J D, Yuan Y, et al. Application of bentonite rings to borehole completion for in-situ leaching of uranium[J].China Mining Magazine, 2016, 25(11): 157-161. doi: 10.3969/j.issn.1004-4051.2016.11.032

[10]

李亚伟, 郭永海, 王驹, 等. 膨润土性能温度效应研究进展[J]. 世界核地质科学, 2011, 28(2): 99-103. doi: 10.3969/j.issn.1672-0636.2011.02.007

Li Y W, Guo Y H, Wang J, et al. Progress in the study of temperature effects on compacted bentonite[J].World Nuclear Geoscience, 2011, 28(2): 99-103. doi: 10.3969/j.issn.1672-0636.2011.02.007

[11]

覃宗华, 袁鹏, 何宏平, 等. 热处理蒙脱石的γ-氨丙基三乙氧基硅烷改性研究[J]. 矿物学报, 2012, 32(1): 14-21.

Qin Z H, Yuan P, He H P, et al. Modification of heat-treated montmorillonite with γ-aminopropyltrie-thoxysilane[J]. Acta Mineralogica Sinica, 2012, 32(1): 14-21.

[12]

Wu P X, Ming C B, Li R, et al. Microstructural characteristic of montmorillonite and its thermal treatment products[J].Journal of Wuhan University of Technology[J]. Materials Science Edition, 2005, 20(1): 83-88.

[13]

Sarikaya Y, Önal M, Baran B, et al. The effect of thermal treatment on some of the physicochemical properties of a bentonite[J].Clays and Clay Minerals, 2000, 48(5): 557-562. doi: 10.1346/CCMN

[14]

刘珍, 曲希玉, 王伟庆, 等. 比表面积氮气吸附法在蒙脱石碱性溶蚀表征中的应用[J]. 岩矿测试, 2016, 35(6): 603-611.

Liu Z, Qu X Y, Wang W Q, et al. Application of specific surface area nitrogen area nitrogen adsorption method to characterize the alkaline dissolution of montmorillonite[J]. Rock and Mineral Analysis, 2016, 35(6): 603-611.

[15]

胡爱连. 山西膨润土提纯、钠化研究及表征[J]. 广东化工, 2011, 38(3): 229-231. doi: 10.3969/j.issn.1007-1865.2011.03.109

Hu A L. Shanxi bentonite purification and characterization of sodium modified research[J].Guangdong Chemical Industry, 2011, 38(3): 229-231. doi: 10.3969/j.issn.1007-1865.2011.03.109

[16]

葛金龙, 王传虎, 秦英月, 等. 广丰膨润土物相分析与钠化改性研究[J]. 非金属矿, 2009, 32(6): 48-52. doi: 10.3969/j.issn.1000-8098.2009.06.016

Ge J L, Wang C H, Qin Y Y, et al. Phase analysis and Na-modification of bentonite from Guangfeng[J].Non-Metallic Mines, 2009, 32(6): 48-52. doi: 10.3969/j.issn.1000-8098.2009.06.016

[17]

朱学忠, 胡墨田. 辽宁省阜新北窝棚膨润土矿岩石矿物学特征[J]. 化工矿产地质, 2014, 36(4): 225-229.

Zhu X Z, Hu M T. The mineralogical characteristics of bentonite in the Beiwopeng deposit, Fuxin, Liaoning Province[J]. Geology of Chemical Minerals, 2014, 36(4): 225-229.

[18]

吴平霄. 蒙脱石热活化与微结构变化关系研究[J]. 现代化工, 2004, 24(Supplement): 100-104.

Wu P X. Microstructure changing in montmorillonite thermal treatment process[J]. Modern Chemical Industry, 2004, 24(Supplement): 100-104.

[19]

陈济美, 龚关, 赵连强, 等. 膨胀土阳离子交换量的测定[J]. 岩矿测试, 2000, 19(2): 152-154. doi: 10.3969/j.issn.0254-5357.2000.02.018

Chen J M, Gong G, Zhao L Q, et al. Determination of cation exchange capacity of expansive soils[J]. Rock and Mineral Analysis, 2000, 19(2): 152-154. doi: 10.3969/j.issn.0254-5357.2000.02.018

[20]

何建雄, 潘浣钰, 叶竹林, 等. 膨润土吸蓝量测定方法的改进[J]. 广东化工, 2017, 44(4): 116-117. doi: 10.3969/j.issn.1007-1865.2017.04.052

He J X, Pan H Y, Ye Z L, et al. Improvement on bentonite blue suction quantity determination method[J].Guangdong Chemical Industry, 2017, 44(4): 116-117. doi: 10.3969/j.issn.1007-1865.2017.04.052

[21]

谢静思. 钠基膨润土胶质价测试方法的改进[J]. 广东化工, 2014, 41(13): 80-81. doi: 10.3969/j.issn.1007-1865.2014.13.039

Xie J S. Improvement in test method of gelling value for bentonite[J].Guangdong Chemical Industry, 2014, 41(13): 80-81. doi: 10.3969/j.issn.1007-1865.2014.13.039

[22]

刘玉芹, 吕宪俊, 邱俊, 等. 膨润土胶质价测定方法的优化研究[J]. 非金属矿, 2008, 31(4): 10-11. doi: 10.3969/j.issn.1000-8098.2008.04.004

Liu Y Q, Lü X J, Qiu J, et al. Optimization on the measurement method of bentonite gelling value[J].Non-Metallic Mines, 2008, 31(4): 10-11. doi: 10.3969/j.issn.1000-8098.2008.04.004

[23]

吕宪俊, 王桂芳, 马少健, 等. 铝柱撑蒙脱石的热稳定性和微结构变化规律研究[J]. 中国矿业大学学报, 2011, 40(2): 252-257.

Lü X J, Wang G F, Ma S J, et al. Thermal stability and microstructure variation laws of Al-pillared montmorillonite[J]. Jounal of China University of Mining & Technology, 2011, 40(2): 252-257.

[24]

冉敬, 杜谷, 王凤玉, 等. X射线衍射全谱拟合法快速分析长石矿物含量[J]. 岩矿测试, 2017, 36(5): 489-494.

Ran J, Du G, Wang F Y, et al. Rapid analysis of feldspar by X-ray diffractormetry Rietveld refinement method[J]. Rock and Mineral Analysis, 2017, 36(5): 489-494.

[25]

李志娟, 王晓飞, 周岐雄, 等. 哈密某膨润土的性能表征与提纯[J]. 金属矿山, 2014, (9): 72-76.

Li Z J, Wang X F, Zhou Q X, et al. Performance characterization and purification of a bentonite ore in Hami[J]. Metal Mine, 2014, (9): 72-76.

[26]

左可胜, 刘建朝, 秦靖, 等. 焙烧对蒙脱石晶体结构和物化性能的影响[J]. 矿物学报, 2009, 29(3): 309-312. doi: 10.3321/j.issn:1000-4734.2009.03.006

Zuo K S, Liu J C, Qin J, et al. The effect of calcination on the crystalline structure and physical & chemical properties of montmorillonite[J].Acta Mineralogiga Sinica, 2009, 29(3): 309-312. doi: 10.3321/j.issn:1000-4734.2009.03.006

[27]

聂俊杰, 汪立今, 周欢, 等. 新疆巴里坤膨润土的红外光谱分析[J]. 岩矿测试, 2009, 28(1): 69-71. doi: 10.3969/j.issn.0254-5357.2009.01.011

Nie J J, Wang L J, Zhou H, et al. Infrared spectroscopic analysis of bentonite from balikun in Xinjiang[J]. Rock and Mineral Analysis, 2009, 28(1): 69-71. doi: 10.3969/j.issn.0254-5357.2009.01.011

[28]

吴平霄, 张惠芬, 王辅亚, 等. 蒙脱石热处理产物的扫描电镜研究[J]. 矿物岩石, 1999, 19(1): 19-23.

Wu P X, Zhang H F, Wang F Y, et al. The SEM study on the montmorillonite and its thermal treatment products[J]. Journal of Mineralogy and Petrology, 1999, 19(1): 19-23.

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热处理对柯尔碱膨润土微观结构和物化性能的影响

徐颖, 邓利蓉, 芦玉峰, 左联, 杜广报