Material selection for equipment
Thread Content
There is a reaction vessel containing material that is 80% acidic organic substances. The interior of the vessel needs to be heated to around 200 degrees. Please help choose the material suitable for manufacturing this vessel; ordinary stainless steel certainly won’t work.
The material contains 80% acidic organic substances? Please specify the components of the material; even some trace elements cannot be ignored, as they have a significant impact on corrosion.
The conditions you mentioned are too vague; I can’t help you make a choice
Best solution: The container can be made of stainless steel or carbon steel, with the inner wall coated with Teflon for corrosion resistance; the material used is PFA, which can withstand temperatures above 200 degrees and provides excellent corrosion protection against organic solutions. It is a copolymer of tetrafluoroethylene and perfluoropropylene produced by DuPont.
Either tetrafluoro or sprayed version is fine; what kind of heating method does the original poster prefer? Each material has its own advantages and disadvantages; we need to take advantage of the advantages and avoid the disadvantages!
Is methanesulfonic acid the strongest organic acid?
I don’t know what pressure you use? If the pressure is not high, perfluorinated materials can be used; for high pressures, fluorine-lined or titanium materials should be employed
Can polytetrafluoroethylene be used at 200°C? ?
Pure tetrafluoride works, but it is difficult to process. The materials available in China are not as good as those abroad. It’s not about being pro-Western; I’m just stating the facts