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Our company needs to purchase a high-temperature and acid-resistant filtration device; I was wondering if anyone has a suitable model
Write it down more clearly: what acid, what is the concentration, and what is the temperature?
Yes, there are very few conditions. What form of filtering is needed, and what level of precision? How high is the high temperature? What kind of acid is it? . . . . .
The conditions are as follows: 5% hydrochloric acid, temperature of 110 degrees, solid content of the material at 25%, and a particle size of at least 400 mesh. Let’s see if there’s anything suitable
Higher requirements are placed on the material; nickel-based alloys or zirconium may be needed.
I have a filter element available right now that I could give a try; its precision is sufficient, it can withstand high temperatures, and its corrosion resistance can be tested by soaking it in water. It’s because the solid content of your liquid material is too high at the moment; it may be necessary to use other precipitation methods first, followed by filtration, in order to reduce the solid content.
The solid content is very high; it’s best to consult manufacturers of plate and frame filters with high-quality materials for advice! If an automatic high-precision filtration system is desired, a multi-stage treatment approach can be adopted. If the viscosity is not high, a hydrocyclone can be used for preliminary filtration, followed by fine filtration using a membrane tube bundle filter.
The original poster has listed the finally selected option – let’s learn from it too*~*
This acidity level is not very severe, so 316L or 904 can be used. The filtration temperature is just too high; could it be reduced below 90? As for the 400-mesh you mentioned, where does this figure come from? Generally, the filtering precision is determined based on the particle size distribution of the material; do you have any data on this aspect? The solid content is 25%; my suggestion is to use a filter press. I’m not sure whether you need the solid form or the liquid form
For liquids, it is necessary to ensure proper insulation throughout the entire process. The filtering accuracy I’m talking about is fine.