Zeolitic Materials with Pronounced Macroporosity in Single Crystals and Methods for Their Preparation

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This invention relates to a new type of zeolitic material consisting of monocrystalline zeolite crystals that feature both micropores and interconnected macropores within a single crystal. The macropores significantly enhance the diffusion properties of the zeolite. The patent also covers a simplified, efficient method for making these materials by transforming porous oxide particles into the zeolitic crystal in the presence of an organic template and steam, without requiring complex templating or multi-step processes.

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• Catalyst in petroleum refining (cracking, hydrocracking, reforming)
• Catalyst for transformation of hydrocarbons and biomass (e.g., redox reactions, rearrangements, condensation)
• Sorbent for chemical separations and purification processes
• Component in membrane production for filtration or separation applications
• Carrier for immobilization of macromolecules such as enzymes or dyes
• Material for development of composite materials in chemistry and materials science

BenefitsContent extracted from patent full text and abstract with AI.

• Significantly improved mass transport within the zeolite due to the connected macropores, overcoming limitations of conventional microporous zeolites
• Longer catalyst life and greater resistance to coke formation, leading to less deactivation during catalytic use
• Enhanced capability for reactions involving larger molecules or requiring faster diffusion
• Simplified, faster, and more efficient production method, avoiding the need for extra template removal or seed crystal preparation steps
• Flexibility to create zeolites with customizable pore structures for a variety of industrial and research applications
• Potential for use in advanced applications requiring high mechanical stability and durability at the single-crystal level

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Patent Abstract

The invention relates to a zeolitic material comprising zeolitic monocrystals, each of which has a pore system encompassing at least one micropore system and at least one macropore system, and to a method for producing a zeolitic material of said type. In said method, porous oxide particles are converted into the zeolitic material in the presence of an organic template and steam.