When feeding under sealed conditions, does the fact that the coating solution is not discharged but instead water is used for feeding affect the quality of the resin?
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If the coating solution is not removed, will it affect the whiteness of the resin? Does it have an impact on the reaction system? Generally, 8 kilograms per reactor is used.
Reply to 1# Ningwang: Our factory discharges waste water; failing to do so has a certain impact on the whiteness of the resin.
There is definitely an impact; polymerization has strict requirements regarding water quality!
To the best of my knowledge, the wall-coating waters used by manufacturers are all discharged outside
The coating kettle solution is alkaline, and the pH value has a significant impact on the dispersant.
This post was last edited by clq20040107 on 2010-11-18 at 23:37. How old are you? An additional 8 kilograms – our 130-grade product only requires an addition of 6 kilograms, while the 108-grade version needs 4 kilograms. The cost issue is serious; it’s necessary to address this separately. What the person upstairs said is correct: the alkaline nature of the coating agent not only affects the dispersant but also the initiator. It also impacts the whiteness of the resin. The dispersant, in turn, indirectly affects parameters such as the particle size of the resin, its porosity, the amount of plasticizer absorbed, and the residual vinyl chloride content. May I ask if the original poster works at Dezhou Shihua? Please leave your contact information; my QQ is 344078816. I hope we can stay in touch often
Good heavens, it’s definitely a mistake. One issue is that it affects product quality; but the key question is: have you calculated how much flushing water is used for the coating tank spraying? It’s very dangerous; it can easily lead to the pot overflowing, posing a safety risk
It needs to be drained; a small amount of residue has little impact