Abstract: Mesoporous compositions and methods for preparing mesoporous and/or mesostructured materials from inorganic materials are provided. Various embodiments described herein relate to the preparation of mesoporous and/or mesostructured zeolites via a dehydroxylation pretreatment followed by a mesopore introduction step.
Abstract: Compositions and methods for preparing mesoporous and/or mesostructured materials from low Si/Al zeolites. Various embodiments described herein relate to preparation of mesoporous and/or mesostructured zeolites via a framework modification step followed by a mesopore introduction step.
Type:
Application
Filed:
April 5, 2012
Publication date:
October 11, 2012
Applicant:
RIVE TECHNOLOGY, INC.
Inventors:
Javier Garcia Martinez, Ernest Senderov, Richard Hinchey
Abstract: The invention provides methods of recovering a pore-forming agent from an inorganic material that defines a plurality of mesopores having a controlled cross sectional area to form a mesostructure having long-range crystallinity and also to methods of making one or more mesostructures that features removal, recovery, and/or reuse of the pore-forming agent. Suitable pore-forming agents include, for example, surfactants.
Type:
Grant
Filed:
January 23, 2008
Date of Patent:
June 26, 2012
Assignee:
Rive Technology, Inc.
Inventors:
Javier Garcia-Martinez, Marvin M. Johnson
Abstract: Compositions and methods for making stabilized mesoporous materials. Surfactant-treated mesoporous precursor materials can be heat-treated in the presence of steam and/or ammonia in a heat-treating environment. The steam and/or ammonia can be introduced into the heat-treating environment via in situ and/or ex situ sources. Such stabilized mesoporous materials can have increased structural stability.
Type:
Application
Filed:
January 7, 2011
Publication date:
July 14, 2011
Applicant:
RIVE TECHNOLOGY, INC.
Inventors:
Ernest Senderov, Javier Garcia Martinez, Marvin Johnson
Abstract: Methods for enhancing the mesoporosity of a zeolite-containing material. Such methods may comprise contacting a composite shaped article containing at least one zeolite and at least one non-zeolitic material with at least one pH controlling agent and at least one surfactant. Such methods may be performed under conditions sufficient to increase the pore volume of at least one 10 angstrom subset of mesoporosity.
Type:
Application
Filed:
October 19, 2010
Publication date:
May 19, 2011
Applicant:
RIVE TECHNOLOGY, INC.
Inventors:
Javier Garcia-Martinez, Lawrence B. Dight, Barry K. Speronello
Abstract: A quantity of solution sufficient to dissolve a pH controlling substance and/or substantially dissolve a surfactant without substantial excess solution is controlled under a set of time and temperature conditions to transform an inorganic material having long-range crystallinity to a mesostructure having long-range crystallinity. The method employs concentrated conditions that have a consistency similar to a thick slurry. The economic viability of scaling up such thick slurry methods is improved relative to prior more dilute methods of transforming an inorganic material to a mesostructure.
Abstract: Compositions and methods for preparing mesoporous materials from low Si/Al ratio zeolites. Such compositions can be prepared by acid wash and/or isomorphic substitution pretreatment of low Si/Al ratio zeolites prior to introduction of mesoporosity.
Type:
Application
Filed:
January 18, 2010
Publication date:
August 5, 2010
Applicant:
RIVE TECHNOLOGIES, INC.
Inventors:
Javier Garcia-Martinez, Marvin M. Johnson, Ioulia Valla
Abstract: Compositions and methods for preparing mesostructured zeolites having improved hydrothermal stability. Such mesostructured zeolites can be prepared by subjecting a zeolite to rare earth ion exchange prior to and/or subsequent to introducing mesoporosity into the zeolite.
Type:
Application
Filed:
January 8, 2010
Publication date:
July 29, 2010
Applicant:
RIVE TECHNOLOGY, INC.
Inventors:
Lawrence B. Dight, Javier Garcia Garcia-Martinez, Ioulia Valla, Marvin M. Johnson
Abstract: The invention provides methods of recovering a pore-forming agent from an inorganic material that defines a plurality of mesopores having a controlled cross sectional area to form a mesostructure having long-range crystallinity and also to methods of making one or more mesostructures that features removal, recovery, and/or reuse of the pore-forming agent. Suitable pore-forming agents include, for example, surfactants.
Type:
Application
Filed:
January 23, 2008
Publication date:
April 30, 2009
Applicant:
Rive Technology, Inc.
Inventors:
Javier Garcia-Martinez, Marvin M. Johnson
Abstract: A quantity of solution sufficient to dissolve a pH controlling substance and/or substantially dissolve a surfactant without substantial excess solution is controlled under a set of time and temperature conditions to transform an inorganic material having long-range crystallinity to a mesostructure having long-range crystallinity. The method employs concentrated conditions that have a consistency similar to a thick slurry. The economic viability of scaling up such thick slurry methods is improved relative to prior more dilute methods of transforming an inorganic material to a mesostructure.
Abstract: One aspect of the present invention relates to mesostructured zeolites. The invention also relates to a method of preparing mesostructured zeolites, as well as using them as cracking catalysts for organic compounds and degradation catalysts for polymers.
Type:
Application
Filed:
April 25, 2005
Publication date:
October 4, 2007
Applicants:
MASSACHUSETTS INSTITUTE OF TECHNOLOGY, RIVE TECHNOLOGY, INC.