What material should be used for the stirrer in sulfuric acid reactors?
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A reaction is carried out in a 20% sulfuric acid solution; the container has a volume of about 1 cubic unit. What type of stirrer would be suitable? It is said that polytetrafluoroethylene lacks sufficient stiffness
What is the temperature? Recommended materials include TA2, 904L, etc
The manufacturer also specified 904L. Is a magnetic stirrer that expensive? A 1-cubic-meter reactor with a magnetic stirrer costs nearly 100,000
Do it as per the customer's request. If the customer specifies 904L, it indicates that the operating temperature will not be low. It’s safer to do as requested.
Enameled steel – it’s cheap and also has excellent resistance to sulfuric acid corrosion.
Previously, the entire set of equipment used was from enamel glass manufacturers; now the management wants to switch to 904L material, which is several times more expensive
I see; glass-lined materials are bulky and prone to damage, which is not very desirable. Then use PTFE lining; steel enhances strength, while polytetrafluoroethylene provides corrosion resistance.
904L, with magnetic drive, is not going to be cheap.
Yes, 80,000 to 100,000 for 1 cubic meter
180 degrees, 40-60% sulfuric acid concentration – is 904L suitable for use? One of our products has an issue with waste acid, and we are about to address it.
For important kettles, cost cannot be an issue – what matters is ensuring reliable production; otherwise, the losses could be far more than 100,000!