Is the volatility of dichloromethane still high at minus 15 degrees Celsius? What should be done if frost forms on the heat exchanger?
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Is the volatility of dichloromethane still high at minus 15 degrees Celsius? What should be done if frost forms on the heat exchanger?
What is the pressure if one condition is missing?
It’s not that high anymore; there’s nothing to do about frost forming on the heat exchanger – it’s inevitable
Frost forming on the outside of the heat exchanger? That's inevitable. If frost forms inside, external recirculation can be used instead of internal recirculation
7° water can also be used; we employ 7° water in the insulated storage tanks for finished products.
A condenser is still used; however, the dichloromethane that is condensed does not return to the reaction vessel, but instead flows back outside and is collected in a storage tank. -15 degrees is not very low; when distillation is carried out using two-stage condensers, the recovery rate can exceed 95%.