Anticorrosion treatment with 【dilute sulfuric acid at 280~300 degrees】
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Ladies and gentlemen, my reaction process is as follows: 1. A certain material is mixed with 98% concentrated sulfuric acid; while stirring, the temperature is increased, and then the sulfuric acid gradually reacts and gets consumed； 2. 1 mole of water is produced without the consumption of 1 mole of sulfuric acid. 3. Upon reaching the reaction endpoint, the temperature of the material system rises to 280–300 degrees, and the concentration of excess sulfuric acid becomes 30%–70%. Under the aforementioned operating conditions – 280~300 degrees Celsius and a final sulfuric acid concentration of 30%~70% – what material should be chosen? Or should carbon steel be used, with a certain acid-resistant material sprayed on its surface? Thank you so much!
Quartz or silicon carbide can meet these operating conditions.
Thank you! I’ll check to see where silicon carbide surface coating can be done.
The temperature is a bit high; I’d like to know as well what good solutions there are Share and enjoy together.
Enameled equipment can meet your requirements
Can enamel equipment withstand 300 degrees? Really?
At 300 degrees, the enamel might become unstable
OP, is it the high temperature generated by the reaction of the material with sulfuric acid? Or is there a certain temperature requirement for the reaction to occur, and does the reactant need to be cooled? We produce silicon carbide heat exchangers, and I’m not sure if we can be of help in this regard. Have you considered carrying out reactions simultaneously with heat exchange? In other words, does the shell cool down while the material and sulfuric acid react inside the tube? And how will the subsequent reactants be separated? We can communicate more; I can help you this afternoon! Thank you
Enameled products definitely cannot be used at such temperatures. We recommend that the service life of enamel products is optimal at temperatures up to 180 degrees.
I don’t know what kind of device this is; what are the requirements regarding price?