RIVE TECHNOLOGY, INC. Patent applications |
Patent application number | Title | Published |
20150182953 | INTRODUCING MESOPOROSITY INTO ZEOLITE MATERIALS WITH A MODIFIED ACID PRE-TREATMENT STEP - Methods for introducing mesoporosity into zeolite materials that employ an acid pretreatment step are provided. By utilizing a non-acidic chelating agent during the acid treatment step, the zeolite material can be pretreated with a strong acid, often in higher concentrations or over shorter contact times, than had previously been contemplated. The resulting acid-treated mesoporous materials retain desirable properties, including Si/Al, UCS, and total mesopore and micropore volume. The ability to use a stronger acid without damaging the zeolite material results in a less expensive process capable of producing mesoporous zeolite materials suitable for a wide range of uses. | 07-02-2015 |
20140213432 | METHODS FOR ENHANCING THE MESOPOROSITY OF ZEOLITE-CONTAINING MATERIALS - 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. | 07-31-2014 |
20140128246 | MESOPOROUS ZEOLITE CATALYST SUPPORTS - Compositions and methods for preparing a catalyst composition containing mesoporous materials are described herein. In particular, various embodiments described herein relate to the preparation of catalytic compositions containing a mesoporous zeolite and one or more catalytic nanoparticles dispersed therein. In various embodiments described herein, such catalyst compositions can be used in various catalytic conversion processes, such as hydrocracking. | 05-08-2014 |
20130183231 | INTRODUCTION OF MESOPOROSITY INTO ZEOLITE MATERIALS WITH SEQUENTIAL ACID, SURFACTANT, AND BASE TREATMENT - Compositions and methods for introducing mesoporosity into zeolitic materials employing sequential acid, surfactant, and base treatments are disclosed herein. Mesopores can be introduced into zeolitic materials, such as zeolites, by treatment with an acid and surfactant followed by treatment with a base. The resulting mesoporous zeolitic materials can have a total 20 to 135 Å diameter mesopore volume of at least 0.05 cc/g. Additionally, the resulting mesoporous zeolitic materials can have a total 0 to 20 Å micropore volume of at least 0.10 cc/g. | 07-18-2013 |
20130183230 | INTRODUCTION OF MESOPOROSITY INTO LOW SILICA ZEOLITES - Mesoporous X and A zeolites and methods for production thereof are disclosed herein. Such mesoporous zeolites can be prepared by contacting an initial zeolite with an acid in conjunction with a mesopore forming agent. The initial zeolite can have a framework silicon-to-aluminum content in the range of from about 1 to about 2.5. Additionally, such mesoporous zeolites can have a total 20 to 135 Å diameter mesopore volume of at least 0.05 cc/g. | 07-18-2013 |
20130183229 | INTRODUCTION OF MESOPOROSITY INTO INORGANIC MATERIALS IN THE PRESENCE OF A NON-IONIC SURFACTANT - Compositions and methods for introducing mesoporosity into inorganic materials in the presence of a non-ionic surfactant are disclosed herein. Mesopores can be introduced into inorganic materials, such as zeolites, by treating the inorganic materials with a non-ionic surfactant. The resulting mesoporous inorganic materials can have a total 20 to 135 Å diameter mesopore volume of at least 0.05 cc/g and a crystalline content of at least 20 weight percent as measured by X-ray diffraction. | 07-18-2013 |
20120275993 | DEHYDROXYLATION PRETREATMENT OF INORGANIC MATERIALS IN MESOPORE INTRODUCTION PROCESS - 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. | 11-01-2012 |
20120258852 | MESOPOROUS FRAMEWORK-MODIFIED ZEOLITES - 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. | 10-11-2012 |
20110171121 | COMPOSITIONS AND METHODS FOR MAKING STABILIZED MESOPOROUS MATERIALS - 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. | 07-14-2011 |
20110118107 | METHODS FOR ENHANCING THE MESOPOROSITY OF ZEOLITE-CONTAINING MATERIALS - 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. | 05-19-2011 |
20100190632 | COMPOSITIONS AND METHODS FOR IMPROVING THE HYDROTHERMAL STABILITY OF MESOSTRUCTURED ZEOLITES BY RARE EARTH ION EXCHANGE - 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. | 07-29-2010 |
20090110631 | Methods of recovery of pore-forming agents for mesostructured materials - 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. | 04-30-2009 |