There is provided a zeolite which has excellent NOx purifying performance, particularly excellent NOx purifying performance after heat endurance. The zeolite has a CHA structure in which Cu and Ce are carried, and has a Cu/Al molar ratio of 0.25 to 0.48 and a Ce/Al molar ratio of 0.01 to 0.03.

A method of manufacturing a porous monolithic zeolite structure including the steps of; taking a porous monolithic substrate; forming one or more zeolites on the substrate; and substantially or completely removing the substrate.

A method of manufacturing a porous monolithic zeolite structure including the steps of; taking a porous monolithic substrate; forming one or more zeolites on the substrate; and substantially or completely removing the substrate.

Described is a preparation method for zeolite molecular sieves by means of solid-state reactions without the usage of organic templates. The method comprises the following steps: grinding and mixing the solid raw materials comprising the silicon source, the aluminum source and the alkali source, transferring the obtained mixture into an autoclave, conducting the crystallization for a period of 5 hours-20 days at a temperature of 50-200 C. After filtering and drying the crystallized products, molecular sieves in a powder form can be obtained. The method provides different molecular sieves, including ZSM-5 zeolite, Beta zeolite, FAU zeolite, MOR zeolite, LTA zeolite, and GIS zeolite, with a high crystallinity and an adjustable Si/Al ratio within a certain range. The obtained products exhibit a high crystallinity and a high purity, and the method does not require the use of organic templates and solvents, which avoids unnecessary consumptions during the production, simplifies the synthetic process, and also increases the yield from the autoclave reactor.

Described is a preparation method for zeolite molecular sieves by means of solid-state reactions without the usage of organic templates. The method comprises the following steps: grinding and mixing the solid raw materials comprising the silicon source, the aluminum source and the alkali source, transferring the obtained mixture into an autoclave, conducting the crystallization for a period of 5 hours-20 days at a temperature of 50-200 C. After filtering and drying the crystallized products, molecular sieves in a powder form can be obtained. The method provides different molecular sieves, including ZSM-5 zeolite, Beta zeolite, FAU zeolite, MOR zeolite, LTA zeolite, and GIS zeolite, with a high crystallinity and an adjustable Si/Al ratio within a certain range. The obtained products exhibit a high crystallinity and a high purity, and the method does not require the use of organic templates and solvents, which avoids unnecessary consumptions during the production, simplifies the synthetic process, and also increases the yield from the autoclave reactor.

The present invention concerns zeolites with hierarchical porosity having a molar ratio Si/Al of between 1 and 1.4, inclusive, of which the average diameter, as a number, is between 0.1 ?m and 20 ?m, having controlled and optimized crystallinity, and having mesoporosity such that the mesoporous outer surface area is between 40 m.sup.2.g.sup.?1 and 400 m.sup.2.g.sup.?1. The present invention also concerns the method for preparing said zeolites with hierarchical porosity.

This invention relates to a hydrogen spillover-based catalyst and use thereof, wherein a hydrogen activation metal cluster is dispersed in the form of being encapsulated in a crystalline or amorphous aluminosilicate matrix which is partially or fully structurally collapsed zeolite, thereby exhibiting high hydroprocessing or dehydrogenation activity and suppressed CC hydrogenolysis activity.

This invention relates to a hydrogen spillover-based catalyst and use thereof, wherein a hydrogen activation metal cluster is dispersed in the form of being encapsulated in a crystalline or amorphous aluminosilicate matrix which is partially or fully structurally collapsed zeolite, thereby exhibiting high hydroprocessing or dehydrogenation activity and suppressed CC hydrogenolysis activity.

The present invention relates to the use of a zeolite as a chemical agent with additional cytotoxic effects used in pleurodesis in the cases of liquid accumulation (pleural effusion) or air accumulation (pneumothorax) in the pleural cavity of lungs.

One form of the present disclosure provides a catalyst including: an LTA zeolite containing copper ions; and an additive, wherein a Si/Al molar ratio of the LTA zeolite is in a range of approximately 2 to 50.