张仙梅1,何振全2,苏中晓3,孟繁荣2,5,卢昌艾1,盖国胜4,5,黄朝晖6
(1.中国农业科学院农业资源与农业区划研究所,农业农村部耕地质量监测与评价重点实验室,北京100081;2.山东清大生态科技有限公司,山东东营257300;3.莒县拥河发展服务中心,山东日照276500;4.山东石油化工学院化学工程学院,山东东营257061;5.清华大学无锡应用技术研究院,江苏无锡214100;6.中国地质大学(北京)材料科学与工程学院,非金属矿物与固废资源材料化利用北京市重点实验室,北京100083)
引用格式：张仙梅,何振全,苏中晓,等.机械活化对钾长石颗粒表面特征的影响[J].中国粉体技术,2023,29(3)：145-154.
ZHANG X M,HE Z Q,SU Z X,et al.Effect of mechanical activation on surface characteristic of potassium feldspar particle[J].China Powder Science and Technology,2023,29(3)：145-154.
DOI：10.13732/j.issn.1008-5548.2023.03.015
收稿日期： 2022-12-03,修回日期：2023-01-20，在线出版时间:2023-05-05 09:46。
基金项目： 山东省农业重大应用技术创新项目,编号：SD2019ZZ021;中国农业科学院基本科研业务费专项所级统筹项目,编号：1610132020008。
第一作者简介：张仙梅(1984—),女,助理研究员,博士,研究方向为矿物矿物土壤改良剂和肥料的制备及应用和矿物服料制备。E-mail：zhangxianmei@caas.cn。
通信作者简介：何振全(1969—),男,农艺师,硕士,研究方向为土壤肥料及调理剂的应用。E-mail：593099606@qq.com。
摘要： 采用机械活化并添加碱性助剂的方法,将钾长石进行粉碎加工,综合研究钾长石粒度分布、比表面积、表面粗糙度、颗粒形貌及相互关系;分别以激光粒度分析仪、比表面积仪测定颗粒大小、表面积,计算表面粗糙度,定量化表征颗粒特性变化;分析机械活化过程中表面积与粒度关系,以及不同碱性助剂对钾长石粉体特性的影响;研究提升钾长石颗粒活性的工艺方法、控制因素及影响机理。结果表明：无论是干法还是湿法研磨加工均能提高钾长石的比表面积和粗糙度,但湿法加工对提高比表面积和粗糙度效率更高,加入碱性添加剂及其盐类则降低比表面积与粗糙度。
关键词： 机械活化;钾长石;比表面积;粗糙度;添加剂
Abstract：The method of mechanical activation and adding alkaline additives were used to grind potassium feldspar and potassium feldspar particle size distribution,specific surface area,surface roughness,particle morphology and their relationship were studied.The particle size and surface area were determined by laser particle size analyzer and BET method,and the surface roughness was calculated to quantitatively characterize the particle characteristics.The relationship between surface area and particle size during mechanical activation and the influence of different alkaline additives on the characteristics of potassium feldspar powder were analyzed.The process,controlling factors and influencing mechanism of enhancing the activity of potassium feldspar particles were studied.The results show that the specific surface area and roughness of potassium feldspar can be improved by both dry and wet grinding processing,but the wet processing is more efficient to improve the specific surface area and roughness,and the addition of alkaline additives and salts can reduce the specific surface area and roughness.
Keywords：mechanical activation;potassium feldspar;specific surface area;roughness;additive
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