| abstract |
A composite filter aid may include a silicate substrate and a precipitated magnesium silicate having a mole ratio of SiO 2 :MgO greater than about 1.0:1. A method for making a composite filter aid may include providing a silicate substrate, precipitating a magnesium silicate onto the silicate substrate to form a composite filter aid, wherein the mole ratio of SiO 2 :MgO of the magnesium silicate is greater than about 1.0:1. A method for filtering a non-aqueous liquid may include providing a non-aqueous liquid for filtering and filtering the non-aqueous liquid through a composite filter aid. |