Separation of sodium hydroxide using sodium aluminate solution
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Now, it is necessary to separate a portion of the sodium hydroxide from the sodium aluminate solution. Do you know any ways to do this? Are there any manufacturers of separation equipment in this area?
If high levels of sodium metasilicate are not a problem, chemical reactions can be used to convert sodium hydroxide into sodium metasilicate; if physical methods are to be employed, then the melting points, densities, and chemical properties of these two substances need to be taken into consideration
Is there any good way? Physical methods
I’m afraid there isn’t any particularly good physical method; sodium aluminate is NaAl(OH)4, which is obtained by removing two molecules of water. Anyway, I don’t know how to remove them
This can be separated using membrane technology; welcome to technical exchanges
This is related to the water volume and concentration; for a treatment capacity of 100 t/h, an investment of under 500 W is not considered high