What material offers the best corrosion resistance for reaction tanks containing chloride ions?
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A 20 m3 reaction tank containing chloride ions (at a volume concentration of about 3%), where the reaction takes place at around 95°C for 2 hours? What material should be chosen for good corrosion resistance and heat resistance? Ordinary stainless steel can affect the quality of the products produced, so it is best to avoid using it. Also, I’m looking for relatively inexpensive materials; I hope teachers with experience in corrosion prevention can provide some recommendations!
Vinyl ester resin can be used; it has good chemical resistance and high-temperature resistance
Use high-temperature resistant fiberglass tanks or PVC tanks. The price of fiberglass is a bit lower.
PTFE has good corrosion resistance, and fiberglass tanks are also good. . . The original poster can compare them specifically
This post was last edited and replied to by yuchenchf on 2012-1-16 at 16:31. Reply 1# tianyuyd: Spraying PTFE or using PTFE plates both yield good results; however, the prices are relatively high. We specialize in PTFE anti-corrosion solutions. If you’re interested, we can discuss this further
Referencing the materials used in continuous reforming or isobutane dehydrogenation regenerators, higher requirements are placed on the materials due to the chlorine balance (chloride ions) involved during regeneration. The material of this device is currently SA240-316.
Study*, study*, study*, study!*
Reply to 5# zhouxuelei: Teacher, do you have any information on SA240-316? This price must be expensive too, right?
Reply to 3# yuchenchf: PVC tanks don’t work; our factory uses them, but the performance is poor and they age quickly.
It is recommended to use fiberglass tanks, as they have good corrosion resistance, are cost-effective, and offer a high cost-performance ratio.
Reply to 10#: FRP, or fiberglass, is corrosion-resistant, but its ability to withstand high temperatures is relatively poor, and it also ages easily.