Polyaluminum ferric chloride produces paste problem
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My unit uses a two-step process to produce polyaluminum ferric chloride. During production, the product sometimes appears mushy and the water-insoluble matter exceeds the standard. What may be the reason? Our unit has always thought it was a problem with hydrochloric acid, but I saw that some manufacturers use waste acid to produce it. ； There should be no problem with the aluminum powder. We use the national standard aluminum powder from Shandong Aluminum. Could it be a problem with calcium aluminate powder? Does anyone know more about the impact of calcium aluminate powder on the production of polyaluminum ferric chloride? Please enlighten me.
Salinity control and concentration control, if these two are not controlled well, it will definitely be mushy.