Zeolitic Particles with Nanometer Dimensions and Methods for Their Preparation

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The invention relates to nanometer-sized zeolitic particles and an efficient, eco-friendly manufacturing process for producing them. These particles are predominantly spherical, highly crystalline, and can be made from either traditional zeolite materials (based on Si, O, and optionally Al) or zeolite-like materials incorporating other framework elements. The method involves templating in porous oxide particles and subsequent conversion by heat and steam, yielding non-aggregated, uniform nanoparticles suitable for various advanced applications.

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• Catalysts in petrochemical refining processes (e.g., hydrocracking, reforming, isomerization).
• Catalysts for hydrocarbon transformation reactions, including redox, rearrangement, and condensation.
• Use in sorption and separation processes, such as molecular sieving, purifying gases, or liquids.
• Support structures for immobilizing macromolecules like enzymes or dyes, useful in biotechnology or sensing.
• Material for fabrication of thin membranes or composite materials with advanced functionality.
• Carrier for incorporating metal nanoparticles (e.g., Pt, Pd, Au) used in catalysis or sensors.
• Development of sensors or sensor components utilizing the unique properties of nano-zeolites.
• Potential use in biomass transformation or breakdown of large organic molecules.

BenefitsContent extracted from patent full text and abstract with AI.

• Faster molecular transport due to reduced diffusion path lengths, enhancing catalytic efficiency.
• Significantly improved resistance to coke formation, boosting catalyst lifetime.
• Enables processing of larger molecules that cannot enter traditional microporous zeolites, expanding application scope.
• Simple and eco-friendly synthesis, requiring minimal template quantities and producing less waste.
• High yield (over 80 wt%) and easy separation/washing, making the process industrially viable.
• Production of highly uniform, non-aggregated, nanometer-scale spheres with controlled size.
• Can be functionalized with metals or organic molecules for specialized applications.
• Reduces synthesis costs and environmental impact compared to conventional nanozeolite processes.

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Patent Abstract

Disclosed are a particulate material and a method for the production thereof, said particulate material comprising zeolitic particles which have a crystalline structure and contain, as the principal component, a zeolite material having a zeolitic framework structure formed by Si, O and optionally Al and/or a zeolite-like material having a zeolitic framework structure not exclusively formed by Si, O and optionally Al, the zeolitic particles being substantially spherical nanometer-size particles.