Selection of reaction vessels and heating methods
Thread Content
There is such a reaction: the sulfuric acid concentration is 60-80%, the hydrochloric acid concentration is 20-30%, and the fluoride ion concentration is around 200 mg/L. It is necessary to heat the mixture to 150-200 degrees in order to evaporate the hydrochloric acid. What kind of reactor is needed? Can a container lined with polytetrafluoroethylene be used? How to choose the heating method?
PTFE-impregnated graphite block pore evaporator
Enameled reaction kettle, heated by heat transfer oil jacket.
The evaporation temperature is 200°C; polytetrafluoroethylene cannot withstand this temperature for long periods of time, so it’s not suitable. Use an enamel kettle, jacket, and heat transfer oil
For solutions containing fluoride ions, enamel-lined reactors cannot be used; at high temperatures, PTFE-lined reactors are also not suitable. Equipment lined with tantalum can be considered
Using a horizontal boiler with an inserted bayonet-style heat exchanger (tantalum) should be able to solve your problem
What is the price of tantalum equipment? Are there any other devices?
What’s the price? Which manufacturers can do it?
The jacket of the enamel kettle cannot withstand fluoride ions; we have tried it, and it works fine in the short term, but it stops working after some time