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Effect of Heat Treatment on Properties of Mineral Attapulgite

机译:热处理对矿物爬胞胎性能的影响

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Mineral attapulgite powders were heat treated at different temperature from 100°C to 800°C. The effect of heat treatment on properties of attapulgite were studied by particle size distribution, surface free energy, and water vapor adsorption performance. The results show that the medium particle size and surface free energy of attapulgite increase and hygroscopic capacity promptly reduce with the increase of heat temperature .The medium particle size of the raw palygorskite is 3.09 urn, and it becomes 14.12 urn after heat treatment at 800 °C. The surface free energy, polarity component and dispersion component of the natural attapulgite are 45.16mN·m~(-1), 13.92mN·m~(-1), 31.24mN·m~(-1), respectively, and they become 116.22 mN·m~(-1), 116.22 mN·m~(-1), 0.0 mN·m~(-1) after heat treatment at 800°C. Moreover, the hygroscopic capacity of attapulgite in 24h decreases from 17.1 % to 5.6% after heat treatment at 800°C.
机译:矿物蒸料粉末在不同温度下从100℃至800℃进行热处理。通过粒度分布,表面自由能和水蒸气吸附性能研究了热处理对藤酸盐性质的影响。结果表明,随着热温度的增加,培养基粒径和表面自由能量增加和吸湿能力迅速减少。未加热温度的培养基粒径为3.09瓮,在800°的热处理后变为14.12 URN C。天然藤酰基石的表面自由能,极性分量和分散组分为45.16mn·m〜(-1),分别为13.92mn·m〜(-1),31.24mn·m〜(-1),它们变成116.22mn·m〜(-1),116.22mn·m〜(-1),在800℃下热处理后0.0mN·m〜(-1)。此外,在800℃下热处理后,24h硫轧淀钛矿的吸湿能力从17.1%降至5.6%。

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