烧碱法合成δ—层状结晶硅酸钠及发展趋势  

The preparation and development trend of theδtype of layered sodium silicate by caustic soda method

作　　者：张中华[1] 满瑞林[1] 

机构地区：[1]中南大学化学化工学院

出　　处：《化工科技市场》2006年第9期5-8,共4页Chemical Technology Market

摘　　要：本文概述了δ—层状结晶硅酸钠的性能、用途及发展趋势,对烧碱法制备层状结晶硅酸钠工艺进行了探讨。固碱与石英在800～860℃反应0.5 h 时合成水玻璃,在660～700℃煅烧固体硅酸钠10～30 min,使其发生晶型转化,得到钙、镁离子交换量大的δ晶型层状结晶硅酸钠。This paper mainly summarized the usage,the performance and the development trend of the δ type of Layered Sodium Silicate. The preparation of Layered Sodium Silicate from caustic soda was discussed. Sodium Silicate was obtained from the reaction of solid caustic soda with Quartz at 800～860℃ for 0.5 h. The crystalline form of Solid Sodium silicate was changed after treatment by calcination at 660～700℃ for 10～30 min,and the δ type of Layered sodium silicate with large exchange capacity of calcium ion and magnesium ion was obtained.

关 键 词：δ-层状结晶硅酸钠 三聚磷酸钠 助洗剂 烧碱 

分 类 号：TQ127.2[化学工程—无机化工]