self-polymerization
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Hello, old friend. I have a question: in the distillation process of the PVC industry, apart from water, iron ions, and acidic media, is there any connection between self-polymerization and the high level of acetylene present in crude vinyl chloride? Now we have a half-month self-polymerization cycle for distillation. Could you please give me some advice? Thank you! ! ! ! ! ! !
It is mainly related to the initiator remaining in the recycled monomer; an anti-polymerization agent should be added to the recycling system, and it is necessary to check whether it is functioning properly.
Dude, you guys are amazing. . Should it be purified once every half month? Have you all been using polymer-recovered VC during this period? If the upstream process stops, it is recommended to stop the operation; reliance on polymerization recovery alone, along with the addition of inhibitors there, will still cause the tower to clog quickly. . . . . .
The cycle time is too short; flushing with nitrogen at the bottom of the tower does have a certain effect, and it should be done using a pipe with a diameter of 25
What raw materials do you use to produce the monomers? It is recommended not to feed the recovered monomer into the syngas holder, as the by-product materials also cause self-polymerization.
What process do you use? Just started driving?
Do you distill while adding inhibitors? How often do you drain water during the distillation process? Where is the drainage arranged? Is a coalescer installed in the system? Is there much initiator in polymer recycling?