What % of glycerin is needed to produce polyether?
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Thank you! What % of glycerin is needed to produce polyether?
Glycerin with a purity of more than 95% is required. Because what you need is a trihydroxypolyether product. Glycerol contains a part of water, and it is a by-product. Of course, the less water required, the better, but more than 99% glycerin is very expensive. Therefore, it is appropriate to choose glycerol with a content of more than 95%. Because the previous part of the polyether production process already includes the dehydration process. Compared with purity requirements, the color of glycerol is more important. If the color of glycerin is very poor, the color of the polyether product will be very poor. The color of glycerin needs to be colorless and transparent, or slightly yellow and transparent.