SYMASORB SMS
effects and function as filter medium.
APPLICATIONS
The crude polyols, after being blended with about 5%wt of water at 80~90°C for 15 minutes, are reacted with H3PO4 (a little more than the crude polyols in amount) for 1 hour, with the pH value of the neutralization solution controlled between 5.0~5.5.
At this stage, 1%wt of SYMASORB SMS is added into and blended with the solution while heating the temperature to 105°C~115°C .
Then dehydrate the solution at the speed from slow to quick in order to make the KH2PO4 crystals well-roportionally formed.
The dehydration process ends when the moisture reaches to minimum amount e.g. 0.05%wt. The filtering circulation follows and continues for 1 hour at the temperature of 105°C~115°C, pressure at 2~4Kpa. Analyze the content of K+(Na+). Filtration begins
一般属性
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Technical Datasheet (English)
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