几种膨润土的物理化学性质
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PHYSICO-CHEMICAL PROPERTIES OF SEVERAL BENTONITES
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    摘要:

    膨润土是以蒙脱石为主要成分的一种粘土(彭琪瑞,1963)。蒙脱石是一种层状结构的铝硅酸盐矿物,颗粒极细,大部分的粒径在1微米以下,晶层之间有吸附态阳离子,并可容纳多层分子,故容易水化膨胀,其水悬液中的颗粒在适宜条件下能结成网状结构,变成粘稠的泥浆。基于这些性质,膨润土在农业、钻探、染织等方面都有广泛的用途。

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    The physico-chemical properties of four samples of bentonite collected from Jiutai in Jilin Province, Changwei in Shandong Province and Nanjing in Jiangsu Province were studied. X-ray diffraction and chemical analysis of these samples were made and their particle size distribution, viscosity and cation exchange capacity were determined. Results obtained showed that all these bentonitea were Ca-Mg clays. The sample eollteted from Nanjing had a higher exchange capacity and that from Jiutai contained more exchangeable sodium.

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罗家贤,蒋梅茵,杨德涌.几种膨润土的物理化学性质[J].土壤学报,1979,16(3):306-312. Luo Jia-xian, Jiang Mei-yin, Yang De-yong. PHYSICO-CHEMICAL PROPERTIES OF SEVERAL BENTONITES[J]. Acta Pedologica Sinica,1979,16(3):306-312.

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  • 在线发布日期: 2013-02-25
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