Porous acid-resistant ceramic media
AssigneeSaint-Gobain Ceramics & Plastics, Inc.
InventorJohn S. Reid
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Abstract
The present disclosure relates to a porous ceramic media that may include a chemical composition, a phase composition, a total open porosity content of at least about 10 vol. % and not greater than about 70 vol. % as a percentage of the total volume of the ceramic media, and a nitric acid resistance parameter of not greater than about 500 ppm. The chemical composition for the porous ceramic media may include SiO2, Al2O3, an alkali component and a secondary metal oxide component selected from the group consisting of an Fe oxide, a Ti oxide, a Ca oxide, a Mg oxide and combinations thereof. The phase composition may include an amorphous silicate, quartz and mullite.
Claims2
A porous ceramic media comprising:
- a chemical composition comprising SiO2, Al2O3, an alkali component and a secondary metal oxide component selected from the group consisting of an Fe oxide, a Ti oxide, a Ca oxide, a Mg oxide and combinations thereof;
- a phase composition comprising amorphous silicate, quartz and mullite;
- a total open porosity content of at least about 10 vol. % and not greater than about 70 vol. % as a percentage of the total volume of the ceramic media, a nitric acid resistance parameter of not greater than about 500 ppm, and wherein the porous ceramic media comprises non-spherical media.
Dependencies are inferred from the claim text.