SYMASORB SMS

牌号SYMASORB SMS
厂家Chemsfield Korea Co., Ltd.
分类Slip Agent / Lubricant / Mold Release / Processing Aid
介绍SYMASORB SMS is white fine powder, amorphous, with vesicular structure and huge specific area, it is an amphoteric compound capable of adsorbing either acid or alkali metal catalyst. It is an efficient refining and purifying agent in the production of polyols for its excellent depicking, deodorizing, potassium ion adsorbing
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
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