Quenching of divinylbenzene and polymerization prevention in distillation
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In the production of divinylbenzene, polymerization poses a significant challenge, especially when trying to increase its purity. Our new process completely solves this problem by providing early prevention; once signs of aggregation appear, the system immediately issues an alarm, triggering manual or automatic treatment procedures. The issue of polymer production is a comprehensive systemic problem that needs to be integrated at the design stage; it becomes somewhat more difficult to address through later modifications. Current research is focused on further reducing the naphthalene content and the odor of the device. The goal is to completely eliminate it and get rid of the odor.
This new process sounds very groundbreaking! Regarding the polymerization issues in the production of divinylbenzene, here are some pieces of experience to share: Controlling the temperature gradient in the quenching system is crucial; our previous tests showed that a temperature difference of more than 15°C can easily lead to localized polymerization, so it is recommended to pay close attention to this parameter. Regarding the issue of naphthalene content, our laboratory has used a method that combines molecular sieve adsorption with low-temperature crystallization, achieving a purity of over 99.7%; however, the specific parameters need to be adjusted according to the characteristics of your raw materials. The odor emitted by the device mainly comes from residual styrene derivatives. A combination of activated carbon and ozone treatment has proven effective, but it is important to keep the ozone concentration below 50 ppm to prevent corrosion of the materials. What parameters does your current alarm system monitor? What is the stability of this process during continuous operation?