摘要
Zeolite 4A is the main substitute builders for sodium tripolyphosphate in non-phosphated detergent. It can be manufactured from savageness clay and the cost may greatly be reduced by this method. In the manufacturing process of detergent-used zeolite 4A from montmorillonite, it is important to remove quartz from clay or zeolite, otherwise the product will not qualified for detergent additive. This article provides two methods, the calibration curve method of quartz content by XRD and the calibration curve method of aluminium ion concentration in synthetic system, to determine the quartz content. Then three methods of removing quartz were studied on, including the methods of whirlwind during the mill run, filtration after alkalinization of silicic acid gel and sedimentation of zeolite.
Zeolite 4A is the main substitute builders for sodium tripolyphosphate in non-phosphated detergent. It can be manufactured from savageness clay and the cost may greatly be reduced by this method. In the manufacturing process of detergent-used zeolite 4A from montmorillonite, it is important to remove quartz from clay or zeolite, otherwise the product will not qualified for detergent additive. This article provides two methods, the calibration curve method of quartz content by XRD and the calibration curve method of aluminium ion concentration in synthetic system, to determine the quartz content. Then three methods of removing quartz were studied on, including the methods of whirlwind during the mill run, filtration after alkalinization of silicic acid gel and sedimentation of zeolite.
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
2000年第5期837-842,共6页
Chinese Journal of Inorganic Chemistry
基金
国家863计划项目!(No.715-064-0120)。
关键词
蒙脱土
酸处理法
洗涤剂助剂
4A沸石
石英
montmorillonite
activated silicic acid gel
detergent-used zeolite 4A
quartz
determine
remove
