Abstract: A batch composition for making a highly porous honeycomb ceramic catalytic filter article, including base inorganic components including a mixture of a nano-zeolite powder, and an inorganic filler, in amounts defined herein; and super additives including: a mixture of at least two pore formers; a binder; and a metal salt, in amounts defined herein. Also disclosed are extruded catalyst filter articles and methods for making the articles.

Abstract: A ceramic forming batch mixture including inorganic batch materials, such as sources of alumina, titania, and silica, a pore former combination including first and second pore formers with different compositions; an organic binder; and a solvent. Also disclosed is a method for producing a ceramic article involving mixing the inorganic batch materials with the pore former combination having first and second pore formers of different composition, adding an organic binder and a solvent, forming a green body; and firing the green body. A green body having a combination of first and second pore formers with different compositions is disclosed, as are several methods for firing to produce ceramic articles such as aluminum titanate.

Abstract: A ceramic forming batch mixture including inorganic batch materials, such as sources of alumina, titania, and silica, a pore former combination including first and second pore formers with different compositions; an organic binder; and a solvent. Also disclosed is a method for producing a ceramic article involving mixing the inorganic batch materials with the pore former combination having first and second pore formers of different composition, adding an organic binder and a solvent, forming a green body; and firing the green body. A green body having a combination of first and second pore formers with different compositions is disclosed, as are several methods for firing to produce ceramic articles such as aluminum titanate.

Abstract: The disclosure provides a composition including a porous cordierite honeycomb body as defined herein having excellent strength, high thermal shock resistance, and reduced microcrack properties. The disclosure also provides methods of making and using the composition, for example, as a catalyst carrier.

Abstract: Disclosed are ceramic articles comprising a sintered phase ceramic composition containing, as expressed on a weight percent oxide basis: a(Al2TiO5)+b(ZrTiO4)+c(Y2O3)+d(YPO4) wherein “a, b, c, and d” represent weight fractions of each component such that (a+b+c+d)=1.00 and wherein 0.5<a?0.95; 0?b?0.5, 0.0?c?0.10, and 0?d?0.5. Also disclosed are precursor batch compositions and methods for manufacturing the ceramic articles disclosed herein.

Abstract: Cordierite ceramic articles with high volume percent porosities of at least 64% but less than 80% have controlled median pore sizes and mean coefficients of thermal expansion that impart substantially improved modulus of rupture strengths (MOR) and thermal shock resistance (TSR) to the ceramic articles.

Abstract: Zeolite-based honeycomb bodies and methods of manufacturing same. Zeolite-based honeycomb bodies especially suited for engine exhaust treatment applications include a primary phase comprising a zeolite having a SiO2 to Al2O3 molar ratio in the range from 5 to 300. The zeolite-based composites are porous with an open porosity of at least 25% and a median pore diameter of at least 1 micron. The zeolite-based honeycomb bodies can be manufactured by an extrusion method.

Abstract: Honeycomb catalyst structures and methods of using them, where the structures have honeycomb channel walls of selective catalytic reduction catalyst, the channel walls occupy at least 20% of the volume of the structure, the structure exhibits a pressure drop for flowing air not exceeding about 110 Pa at a space velocity of 20,000 hr?1, and the channel walls are of a thickness insuring high degree of catalyst utilization and NOx conversion efficiency.

Abstract: Disclosed are ceramic articles comprising a sintered phase ceramic composition containing, as expressed on a weight percent oxide basis: a(Al2TiO5)+b(ZrTiO4)+c(Y2O3)+d(YPO4) wherein “a, b, c, and d” represent weight fractions of each component such that (a+b+c+d)=1.00 and wherein 0.5<a?0.95; 0?b?0.5, 0.0?c?0.10, and 0?d?0.5. Also disclosed are precursor batch compositions and methods for manufacturing the ceramic articles disclosed herein.

Abstract: A method of manufacturing a catalyst body which includes: combining one or more inorganic components with an inorganic binder, and optionally with an organic binder, to form a mixture, the one or more inorganic components comprising a primary phase material being zeolite, or CeO2—ZrO2, or a combination; forming the mixture into a shaped body; firing the shaped body to allow the inorganic binder to bind the one or more inorganic components; impregnating the shaped body with a source of a reducing or oxidizing element; and heating the impregnated shaped body to form a redox oxide from the source, the redox oxide being supported by the shaped body.

Abstract: A catalyst body which includes ceria:zirconia and a metal-zeolite, and is substantially free, or free, of tungsten or tungsten compounds, and methods of manufacture. The ceria and zirconia are present with a zirconia/ceria mole ratio of less than or equal to 1.0. The catalyst body is especially useful in NOx reduction applications.

Abstract: Zeolite-based honeycomb bodies and methods of manufacturing same. Zeolite-based honeycomb bodies especially suited for engine exhaust treatment applications include a primary phase comprising a zeolite having a SiO2 to Al2O3 molar ratio in the range from 5 to 300. The zeolite-based composites are porous with an open porosity of at least 25% and a median pore diameter of at least 1 micron. The zeolite-based honeycomb bodies can be manufactured by an extrusion method.

Abstract: Disclosed are ceramic articles comprising a sintered phase ceramic composition containing, as expressed on a weight percent oxide basis: a(Al2TiO5)+b(ZrTiO4)+c(Y2O3)+d(YPO4) wherein “a, b, c, and d” represent weight fractions of each component such that (a+b+c+d)=1.00 and wherein 0.5<a?0.95; 0?b?0.5, 0.0?c?0.10, and 0?d?0.5. Also disclosed are precursor batch compositions and methods for manufacturing the ceramic articles disclosed herein.

Abstract: A method for base-coating a porous ceramic catalyst support includes coating the support with a passivation coating via vacuum infiltration, and subsequently exposing the support to a microwave field to dry the coating and form a polymerized film. The method further includes coating the support with a catalyst coating or washcoat, and subsequently exposing the support to a second microwave field, thereby removing water from the catalyst coating or washcoat.

Abstract: Disclosed are ceramic articles, which in one aspect are composed predominately of a cordierite having a composition close to that of Mg2Al4Si5O18. The ceramic articles possess a microstructure characterized by a unique combination of relatively high porosity and relatively narrow pore size distribution, both as measured by mercury porosimetry, that render the ceramic structure useful for ceramic filter applications requiring high thermal durability and high filtration efficiency coupled with low pressure drop along the length of the filter. Such ceramic bodies are particularly well suited for filtration applications, such as diesel exhaust filters or DPFs. Also disclosed are methods for the manufacture of the ceramic articles described herein.

Abstract: Zeolite-based honeycomb bodies and methods of manufacturing same. Zeolite-based honeycomb bodies especially suited for engine exhaust treatment applications include a primary phase comprising a zeolite having a SiO2 to Al2O3 molar ratio in the range from 5 to 300. The zeolite-based composites are porous with an open porosity of at least 25% and a median pore diameter of at least 1 micron. The zeolite-based honeycomb bodies can be manufactured by an extrusion method.

Abstract: Disclosed are ceramic articles comprising a sintered phase ceramic composition containing, as expressed on a weight percent oxide basis: a(Al2TiO5)+b(ZrTiO4)+c(Y2O3)+d(YPO4) wherein “a, b, c, and d” represent weight fractions of each component such that (a+b+c+d)=1.00 and wherein 0.5<a?0.95; 0?b?0.5, 0.0?c?0.10, and 0?d?0.5. Also disclosed are precursor batch compositions and methods for manufacturing the ceramic articles disclosed herein.

Abstract: The invention describes a high porosity ceramic article and method of manufacturing the same and intermediate dried honeycomb green body articles. The article may have a total porosity of at least about fifty-five percent, above sixty percent, or even above sixty-five percent. The method of manufacture includes mixing a ceramic-forming powder, an organic pore former, water, and a crosslinker. Drying causes a condensation reaction between the pore former and the crosslinker thereby forming a network within the green body that strengthens the green body and reduces cracking. The pore former may include starch or an activated cellulose compounds. Secondary pore forming agents, such as graphite may also be included.

Abstract: The disclosure provides a composition including a porous cordierite honeycomb body as defined herein having excellent strength, high thermal shock resistance, and reduced microcrack properties. The disclosure also provides methods of making and using the composition, for example, as a catalyst carrier.

Abstract: Cordierite ceramic articles with high volume percent porosities of at least 64% but less than 80% have controlled median pore sizes and mean coefficients of thermal expansion that impart substantially improved modulus of rupture strengths (MOR) and thermal shock resistance (TSR) to the ceramic articles.