The issue of material selection for phosphoric acid
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Medium: Phosphoric acid. Concentration: 95%. Maximum temperature: 300. Currently, 316L is used; its corrosion resistance is not very good, and erosion is severe. Are there any better material alternatives?
The maximum temperature is 300 degrees Celsius, right? It’s a bit high! If it’s convenient, could you give a brief introduction to the process? Is it electronic-grade?
The estimate for the fourth floor seems reasonable; the cost should be lower
Such high concentrations and temperatures must be above the boiling point; beyond that boiling point, no metal material is likely to be able to withstand such conditions at present. Not to mention 316L, even 904L probably won’t fare much better
Ceramics should work; it’s mainly the temperature issue, and heating is required
A corrosion resistance test using coated samples could be conducted; I remember having built equipment made entirely of pure copper for a research institute in Shanghai many years ago. The boiling point of 100% phosphoric acid is 261 degrees; is the value of 300 degrees accurate?