Platinum catalyst carrier dissolution issue
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For the platinum catalysts used in catalytic reforming units, after immersion in sulfuric acid, 60% of the carrier remains undissolved and appears in powder form; it settles at the bottom of the solution. During filtration, it becomes viscous, which results in a fairly slow filtration rate. Is the carrier of this catalyst aluminum oxide? ? ? If so, why doesn’t most of it dissolve? If not, then what is the ingredient? How can I improve the filtering speed? Please give me some advice
-- This seems to have little to do with smelting; it should fall under the category of fine chemicals. --
Hehe, I’m trying to extract platinum from it, but problems started right from the beginning. . . .