Heat exchanger material for mixed acid
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We have a mixed acid (20% sulfuric acid + 45% phosphoric acid) that needs to be heated to 85 degrees through heat exchange. What type of heat exchanger is suitable? If it’s graphite, which company in China is the best? I hope everyone will recommend it.
Graphite heat exchangers are the preferred choice; please provide the process parameters so that a suitable model can be recommended.
Our operating conditions are as follows: The mixed acid (20% sulfuric acid + 45% phosphoric acid, flow rate of 35 m3/hr) needs to be heated (from 50 degrees to 85 degrees). QQ 1804426805
In terms of material, graphite, Hastelloy, and SIC are all suitable. Personally, I think shell-and-tube types are better for the chemical industry.
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Tubular silicon carbide heat exchanger~~~~~~~~~~~~~~~~~~~~~
Many materials can be used for this purpose, but to reduce initial costs, impermeable graphite is the better choice.