Co-Agglomerated Composite Materials, Methods for Making Co-Agglomerated Composite Materials, and Methods for Using Co-Agglomerated Composite Materials
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United States of America Patent
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Jul 9, 2015
app pub date -
Jun 24, 2013
filing date -
Jun 26, 2012
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Abstract
A composite filter aid may include diatomaceous earth, natural glass, and a precipitated silica binder, wherein the filter aid has a permeability ranging from 3 to 20 darcys. A composite filter aid may include diatomaceous earth, perlite, and a precipitated silica binder, wherein the filter aid has an alpha density less than 15 lbs/ft3. A method for making a composite material may include blending diatomaceous earth and perlite, adding alkali silicate to the blended diatomaceous earth and perlite, and precipitating the alkali silicate as a binder to make the composite material. A method for filtering a beverage may include using a composite filter aid and/or composite material.
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