What material should be used for 20% fuming sulfuric acid reaction reactors?
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I would like to ask the experts: given that the main corrosive agent is 20% fuming sulfuric acid and the reaction temperature is 210°C, is it possible to use an enamel-lined reactor?
I’ve seen one that uses 316L, but with a thick wall thickness
It is best to use enamel and/or glass lining; when operating, be careful not to let the temperature rise or fall too quickly. There are options available for coating the inner surface of stainless steel with PTFE, and that would work as well; the temperature should be tolerable.
Agree with the person above! ! ! ! ! ! ! ! ! ! !
PTFE cannot meet the requirements of high temperatures of 210 degrees
But can the temperature of an enamel reactor only withstand 175 degrees Celsius?
According to the manufacturer’s specifications, glass-lined steel can withstand 200 degrees, but it is necessary to avoid sudden changes in temperature
310 or 309 stainless steel will do
This post was last edited by Stay calm HAPPY on 2015-7-5 at 18:13. I found this question quite interesting. I’ve been studying API 571 recently and happened to come across the chapter on sulfuric acid corrosion. After reading the entire chapter, I still couldn’t find an answer to this question. I hope someone upstairs can explain why 310 or 309 was chosen Because 310 or 309 stainless steel is rarely encountered in work. Thank you!
I find this question quite interesting. I’ve been studying API 571 recently and happened to come across the chapter on sulfuric acid corrosion. After reading the entire chapter, I still couldn’t find an answer to this question. I hope someone upstairs can explain why 310 or 309 was chosen Thank you!
Headache, such a headache. Are there any manuals or reliable sources?