Who knows what is the main component of the flux used for baking ash in aluminum smelting (to make aluminum ash heat quickly, thus separating the heating agent of aluminum)?

This solvent is a slag remover for aluminum smelting. Its ingredients have been patented. As follows: the slag remover for refined aluminum and aluminum alloy of the present invention is composed of various chlorides and fluorides, and the quantitative chemical components are 15-30% Na, 10-20% K, 1-5% Ca, 1-5% Mg, and 20-50% mg.