Effect of Milling Methods on Particulate Properties and Structure of Clinoptilolite,Crystal Research and Technology

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Effect of Milling Methods on Particulate Properties and Structure of Clinoptilolite
Crystal Research and Technology ( IF 1.5 ) Pub Date : 2020-02-24 , DOI: 10.1002/crat.201900180
Vinh Dinh Nguyen ₁ , Quy Minh Bui ₁ , Jindrich Kynicky ₂ , Dalibor Vsiansky ₃

Affiliation

The effects of ultrasonic milling, dry and wet ball milling, and vibro‐milling on the particulate properties, crystalline characteristics, morphology, and surface area of clinoptilolite (Cpt) have been investigated. Laser beam scattering technique, X‐ray diffraction (XRD), scanning electron microscopy (SEM), and nitrogen adsorption/desorption at 77 K are used to characterize the initial and ground Cpt powders. Results show that Cpt particle size is significantly reduced by all carried out milling methods in which vibro‐milling could produce particles with diameter less than 100 nm. The size distribution of Cpt is remarkably narrowed by using vibro‐ and wet ball milling. The crystallinity of Cpt noticeably decreases for the samples obtained by ball milling while vibro‐ and ultrasonic millings show a negligible effect on crystallinity. The specific surface area of Cpt is enhanced by all four milling methods.

中文翻译：

研磨方法对斜发沸石颗粒性质和结构的影响

研究了超声波研磨，干法和湿法球磨以及振动研磨对斜发沸石（Cpt）的颗粒性质，晶体特性，形态和表面积的影响。激光束散射技术，X射线衍射（XRD），扫描电子显微镜（SEM）以及在77 K下的氮吸附/解吸用于表征初始和研磨的Cpt粉末。结果表明，所有已进行的研磨方法均会显着降低Cpt粒度，在这些方法中，振动研磨可产生直径小于100 nm的颗粒。通过使用振动球磨和湿球磨，Cpt的尺寸分布明显变窄。对于通过球磨获得的样品，Cpt的结晶度显着降低，而振动和超声研磨对结晶度的影响可忽略不计。

更新日期：2020-04-09

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