What material should be used for an acetic acid reactor at 110℃
Thread Content
As the title suggests: Using acetic acid as the raw material, in a batch reactor at 110°C, what material is suitable for the reactor? Traditionally, enamel-lined reactors are used; once scaling occurs, the heat transfer efficiency declines and the reactors are prone to damage. I’m considering switching to C276 material and would like to ask if anyone has any experience in this area.
Enameled steel is still the better choice; stainless steel won’t do
We also have acetic acid and acetic anhydride in our workshop; I haven’t heard of such a phenomenon. Some of our reaction vessels can handle temperatures up to 120 degrees
C-276 Hastelloy belongs to the nickel-molybdenum-chromium-iron-tungsten family of nickel-based alloys, and it is one of the most corrosion-resistant materials among modern metallic materials. It is primarily resistant to moisture, various oxidizing chlorides, chloride salt solutions, sulfuric acid, and oxidizing salts, and exhibits excellent corrosion resistance in both low-temperature and medium-temperature hydrochloric acids. Therefore, over the past three decades, it has found wide application in harsh corrosive environments across various industrial sectors such as chemicals, petrochemicals, flue gas desulfurization, pulp and paper, and environmental protection.
Titanium material; it won’t work if there are chloride ions or anything like that
I also heard from others that some manufacturers use this material for the reaction towers used in the production of isobutyl acetate, and it performs quite well. So I was wondering if any other colleagues have used it
HC276 is certainly good, but the price is high too! ;P Also, I would like to ask: for maleic anhydride at around 100 degrees, what material would be more suitable?