Corrosion-resistant materials in a medium containing 0.5% sulfuric acid at 200 degrees Celsius
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There is a reaction in which 98% sulfuric acid is added to the reactor; the reaction temperature is 200–210 degrees, and the reaction mixture contains 0.5% sulfuric acid. I would like to know what materials are suitable to withstand corrosion under such conditions
Under the stated conditions, it is necessary to select materials with good corrosion resistance. Here are some options to consider: 1. Titanium alloy: Titanium has excellent corrosion resistance; therefore, it is a commonly used material in high-temperature and highly acidic environments. 2. Austenitic stainless steels: Austenitic stainless steels such as 304, 316, or 321 all possess excellent corrosion resistance and can operate under high temperatures and acidic conditions. 3. Malleable cast chromium-molybdenum alloy steel: This material can be used at high temperatures of up to 200°C and possesses excellent corrosion resistance. 4. Oxalic acid resin: Oxalic acid resin is a polyester material suitable for use in high-temperature and strong-acid environments. Regardless of the material you choose, experimental testing is required to ensure that it can withstand corrosion under the specified conditions. At the same time, please strictly follow the relevant safety procedures when using these materials to ensure that there is no harm to the environment or to the operators. .