Corrosion issues of pure titanium
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Moderators and colleagues, I’m seeking advice regarding the corrosion issues associated with pure titanium materials. Our heat exchangers are made of TA2 material, and the fluid used is 20% concentrated peracetic acid, with ethyl acetate as the solvent; this fluid also contains about 10% acetic acid, at a temperature of around 80 degrees. I’m not sure whether TA2 tubes can withstand such operating conditions I would appreciate some advice; a thank-you red packet can be sent. Please support the moderator, thanks!
Acetic acid is fine; I don’t know the corrosion data for peracetic acid
This post was last edited by Wang Wei2 on 2019-7-15 09:51. The heat exchanger is made of TA2 material; the medium used is peracetic acid at a concentration of 20%, along with ethyl acetate and approximately 10% acetic acid, at a temperature of around 80 degrees. Titanium heat exchanger tubes can be used. Because titanium is an inherently reactive metal, it can form a highly corrosion-resistant passivation film through oxidation at room temperature, thereby possessing excellent corrosion resistance. It should be noted, however, that it is not resistant to the corrosion caused by relatively pure reducing nitrates (such as sulfuric acid and hydrochloric acid); but when the acid contains oxidizing agents (such as nitric acid, ferric ions, and copper(II) ions), the degree of corrosion is significantly reduced. Metal titanium performs well when used in organic acids. Peracetic acid (acetic acid), ethyl acetate, and acetic acid – compounds that are primarily based on acetic acid or contain acetic acid – can be used with confidence.
Peracetic acid is also known as peroxyacetic acid; titanium materials have no problem with organic acids. Furthermore, the passivation film of titanium is formed through an oxidation process, so it can withstand peracetic acid.
Are there any devices running right now? A hanging slice test can be conducted
It can be used. Carbon steel can also be used after being treated for corrosion resistance. The optimal solution is determined after technical and economic analysis.
Some titanium materials can be found to conduct experiments first