膨润土深度开发产品的制备及性能研究
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摘要
本文系统总结了膨润土的有关文献，对利用黑龙江省拜泉膨润土和辽宁省抚顺膨润土湿法制备有机膨润土、4A分子筛和活性白土的工艺进行了研究，重点研究了膨润土深度开发产品制备过程中反应的酸度、温度、时间、液固比、碱处理、凝胶混合物的配比等实验条件对上述相应产品性能的影响。探究了珍珠岩和废白土制备4A分子筛的新工艺，并对制备过程中产生的废酸碱液进行了综合利用治理。
对所制备的4A分子筛、活性白土、有机膨润土进行了XRD、SEM、IR、TG-DTA、BET等表征，通过钙交换容量、活性度、脱色率和粘度等性能测定对所制备的产品进行了质量检验，结果表明所制备的产品性能符合国家有关标准。
The progress on the bentonite has been systematically reviewed in this paper. The wet process was studied on the 4A molecular sieves, activated clay and organic bentonite prepared by using the bentonite from Baiquan (Heilongjiang Province) and Fushun (Liaoning Province). The experimental conditions, including acidity, temperature, time, alkalization, the ratio of liquid to solid and the gel mixtures, etc, were especially discussed the effects on the above products property in the preparation of deeply developing bentonite. It explored the new technique by using pearlite and wasted clay to produce 4A molecular sieves, and made use of all the exhausted acid and alkali in the process.
The 4A molecular sieves, activated clay and organic bentonite were charactized by XRD, SEM, IR, TG-DTA and BET, etc, and their properties were tested by calcium exchange capacity, activaity, decolorization and viscosity. The products were accorded with the standard of the country requirement.
对所制备的4A分子筛、活性白土、有机膨润土进行了XRD、SEM、IR、TG-DTA、BET等表征，通过钙交换容量、活性度、脱色率和粘度等性能测定对所制备的产品进行了质量检验，结果表明所制备的产品性能符合国家有关标准。
The progress on the bentonite has been systematically reviewed in this paper. The wet process was studied on the 4A molecular sieves, activated clay and organic bentonite prepared by using the bentonite from Baiquan (Heilongjiang Province) and Fushun (Liaoning Province). The experimental conditions, including acidity, temperature, time, alkalization, the ratio of liquid to solid and the gel mixtures, etc, were especially discussed the effects on the above products property in the preparation of deeply developing bentonite. It explored the new technique by using pearlite and wasted clay to produce 4A molecular sieves, and made use of all the exhausted acid and alkali in the process.
The 4A molecular sieves, activated clay and organic bentonite were charactized by XRD, SEM, IR, TG-DTA and BET, etc, and their properties were tested by calcium exchange capacity, activaity, decolorization and viscosity. The products were accorded with the standard of the country requirement.
引文
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2 《矿产资源综合利用手册》编辑委员会．编矿产资源综合利用手册．科学出版社，2000：521-530
3 R. NASEEM and S. S. TAHIR. Removal of Pb(Ⅱ) from Aqueous/AcidicSolutions by Using Bentonite as an Adsorbent. Wat. Res. 2001, 35(16): 3982-3986
4 Nevin O ztekin, Ayse Alemdar, Nurfer Gungor, F. Bedia Erim. Adsorption of Polyethyleneimine from Aqueous Solutions on Bentonite clays. Materials Letters. 2002, (55): 73-76
5 B. Koumanova, P. Peeva-Antova. Adsorption of p-chlorophenol from Aqueous Solutions on Bentonite and Perlite. Journal of Hazardous Materials A. 2002, (90): 229-234
6 王厚亮，李建保，黄勇．膨润土的先进加工工艺和最新用途．中国矿业，1996，5(6)：39-43
7 Dietrich Koch. Bentonites as a Basic Material for Technical Base Liners and Site Encapsulation Cut-off Walls. Applied Clay Science. 2002, (21): 1-11
8 E. Bojemueller, A. Nennemann, G. Lagaly. Enhanced Pesticide Adsorption by Thermally Modified Bentonites. Applied Clay Science. 2001, (18): 277-284
9 Y. Inagaki, H. Furuya, K. Idemitsu. Leaching and Migration of Neptunium in a Simulated Engineered Barrier Sysem Consisting of HLY Glass and Compacted Bentonite. Journal of Nuclear
Materials. 2001, (298): 168-173
10 S.K. Kawatra and S.J. Ripke. Developing and Understanding the Bentonite Fiber Bonding Mechanism. Minerals Engineerin. 2001, 14(6): 647-659.
11 Dong Wenming, Wang Xiangke, Bian Xiaoyan. Comparative study on sorption/desorption of radioeuropium on alumina, bentonite and red earth: effects of pH, ionic strength, fulvic acid, and iron oxides in red earth. Applied Radiation and Isotopes. 2001, (54): 603-610
12 M. Benna, N. Kbir-Ariguib, C. Clinard. Static Filtration of Purified Sodium Bentonite Clay Suspensions. Applied Clay Science. 2001, (19): 103-120
13 Tamotsu Kozaki, Koichi Inada, Seichi Sato, Hiroshi Ohashi. Diffusion Mechanism of Chloride Ions in Sodium Montmorillonite. Journal of Contaminant Hydrology. 2001, (47): 159-170
14 王庆伟，崔运成，宣立富．钻井液用膨润土研制．非金属矿．2000，23(6)：29-30
15 K. S. Chum, S.S. Kim, C.H. Kang. Release of Boron and Cesium or Uranium from Simulated Borosilicate Waste Glasses Throuhg a Compacted Ca-bentonite Layer. Journal of Nuclear Materials. 2001, (298): 150-154
15 冯诗庆．钠基膨润土在静态破碎剂中的应用初试．非金属矿．1993，2：48-49．
17 M. Garcia-Gutierrez, T. Missana, M. Mingarro. Solute Transport Properties of Compacted Ca-bentonite Used in FEBEX Project. Journal of Contaminant Hydrology. 2001, (47): 127-137
18 归凤铁，陈强，侯海山．高纯钠基膨润土制备新工艺研究．非金属矿．1997，22(4)：36-37
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