摘要
研究了高含量SDD的制备工艺条件．考察了合成温度、NaOH／CS2摩尔比、结晶工艺对SDD含量的影响。经过优化和综合实验确定了制备sDD的最佳工艺条件：合成温度为25—35℃．NaOH／CS2簿尔比为1．02、加入晶种的初始温度为40～50℃、晶种用量为1％、结晶搅拌频率为10．15Hz。经检验产品含墨可达到95％以上。
The process conditions for SDD preparation have been studied.The effects of synthetic temperature,the molar ratio between NaOH and CS_2 and the crystallization process on SDD content were investigated.After optimization it has been made clear that the optimum conditions for SDD preparation should be: synthetic temperature 25～35℃,NaOH/CS_2 molar ratio 1.02,seed crystal consumption 1%,initial temperature for adding crystalseed:40～50℃,and stirring frequency for crystallization 10～15Hz.Under such conditions,tests show that SDD content is over 95%.
出处
《化工设计通讯》
CAS
2006年第1期51-53,共3页
Chemical Engineering Design Communications
关键词
SDD
工艺条件
结晶工艺
品种
含量
SDD
process condition
crystallization processes
seed crystal
content
