Is titanium tube resistant to hydrochloric acid? Urgently need help!
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Is titanium tube resistant to hydrochloric acid? Seeking expert advice: I just had titanium tubes installed, and it’s only been 10 days; there are five leakage points. The medium used is hydrochloric acid, with a pH level of 4.5
Below 10 percent, and also below 30 degrees Celsius is acceptable
For temperatures below 10%, a titanium-palladium alloy such as TA9 is required; Hastelloy B and zirconium materials are better options
I also knew it was not resistant to hydrochloric acid; after all, it had been used over a decade ago, but I took chances
A concentration below 10% should be fine； The chlorohydrin reactor in the propylene oxide plant produced by the chlorohydrin process is made of titanium, and it contains hydrochloric acid inside.
Titanium can resist chlorine gas, but it is not resistant to hydrochloric acid at all; for hydrochloric acid, PE pipes, steel-lined PTFE pipes, or PVC pipes can be used.
Dilute hydrochloric acid solution, pH 2.5, 100°C – can titanium be used for the heat exchanger?
I think a graphite heat exchanger can be used
A hydrochloric acid concentration of PH4.5 is far too low; even stainless steel can withstand it for a year. The medium must have changed.