This work describes a systematic study of the granulation process of a 5A zeolite into molecular sieves. Initially, a 5A zeolite was synthesized at the pilot scale and subsequently granulated in a core–shell structure using a rotary tilted pan. The effect of water content of the paste, pan rotating velocity and inclination, proportion of zeolite in the core and shell, shell thickness, the type of binding clay, and the calcination temperature were studied. The effect of these variables on the shape, size, water adsorption capacity, and crush resistance of the agglomerates was assessed. According to the results, suitable bead shape and size were obtained at high rotation velocity (59 rpm), low pan inclination (60°) and with 30 wt. % of added water. High content of zeolite in the core and shell provided suitable adsorption capacity, but lower crush resistance. Actigel 208® exhibited better binding performance and the recommended calcination temperature was 873 K.

中文翻译：

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沸石基分子筛中试锅造粒研究

这项工作描述了将 5A 沸石粒化成分子筛的过程的系统研究。最初，5A 沸石以中试规模合成，随后使用旋转倾斜盘在核壳结构中造粒。研究了糊料的含水量、锅的转速和倾角、核壳中沸石的比例、壳的厚度、粘结粘土的类型和煅烧温度的影响。评估了这些变量对附聚物的形状、尺寸、吸水能力和抗压碎性的影响。根据结果​​，在高转速 (59 rpm)、低盘倾角 (60°) 和 30 wt. 添加的水的百分比。核壳中沸石含量高，提供了合适的吸附能力，但抗压性较低。Actigel 208® 表现出更好的结合性能，推荐的煅烧温度为 873 K。