For the sulfuric acid of PH2, when heated to 50-60°C, what material should be used for the heating tube?
Thread Content
For the sulfuric acid of PH2, when heated to 50-60°C, what material should be used for the heating tube? I used titanium material; after two months, I noticed some scars and peeling on the outside of the titanium tube, and it seemed like the titanium had been corroded. There is now a leakage issue and the heating element has been damaged. I would like to know what type of material should be used for the heating element in such a situation
a–alumina, lead, tantalum, C276, SiC
Indirect heat exchange can be chosen, using heat exchangers made of graphite, PTFE, Hastelloy, or other materials.
If the maximum temperature reaches only 60 degrees, go with a PP pipe – it will suffice. PP pipes can withstand temperatures up to 90 degrees. Alternatively, PTFE pipes can handle temperatures of 120 degrees, while PFA pipes can tolerate temperatures of 150 degrees.
I don’t know what shape the heating element used by the original poster is; generally, PTFE ones or those coated with a special material will work, and our company also has silicon carbide ones available