Iowa State University Research Foundation, Inc.

Claytec, Inc.

Pinnavaia, Thomas

Victor Shang-Yi Lin

Brian G Trewyn

Igor Ivan Slowing

Srdija Jeftinija

Hung-Ting Chen

Jennifer A Nieweg

Cheng-Yu Lai

Dusan M Jeftinija

Carla Kern

John G Verkade

Joel I Dulebohn

Marek Pruski

Kan Wang

Kapil Kandel

Takeshi Kobayashi

Daniela Rodica Radu

Chinta Reddy Venkat Reddy

Po-Wen Chung

Yang Cai

Supratim Giri

Francois Jean George Torney

Chih-Hsiang Tsai

The present invention provides bifunctional silica mesoporous materials, including mesoporous silica nanoparticles ('MSN'), having pores modified with diarylammonium triflate and perfluoroaryl moieties, that are useful for the acid-catalyzed esterification of organic acids with organic alcohols.

Multifunctional mesoporous silica catalyst

The present invention provides a magnetic mesoporous nanoparticle that includes a mesoporous silicate nanoparticle and iron oxide. The present invention also provides a method of using magnetic mesoporous nanoparticles to sequester microorganisms from a media.

Magnetic mesoporous material for the sequestration of algae

The invention provides an article having a mesoporous silicate matrix, such as a particle, having one or more pores; and one or more releasable caps obstructing one or more of the pores for delivery of one or more agents to plant cells or other chlorophyll containing cells, or fungi.

Methods of using capped mesoporous silicates

The invention provides novel mesoporous particles and methods for the selective sequestration of organic compounds from microorganisms, such as from various genera and species of algae that produce important organic compounds. The organic compounds can be selectively sequestered, for example, in favor of biodiesel impurities such as sterols and chlorophyll, to provide substantially pure free fatty acids. The free fatty acids can then be esterified to provide pure biodiesel.

Sequestration of compounds from microorganisms

The invention provides an article comprising, a mesoporous silicate matrix, such as a particle, having one or more pores; and one or more releasable caps obstructing one or more of the pores. The articles are useful as delivery vehicles for encapsulated agents such as therapeutic agents, polynucleotides, polypeptides and the like.

Capped mesoporous silicates

The invention provides efficient, inexpensive, and environmental friendly catalysts and catalyst systems. The catalysts can be used to catalyze esterification and/or transesterification reactions, for example, for the preparation of biodiesel. Kiln dust, such as cement kiln dust (CKD) or lime kiln dust (LKD) can be used to convert a variety of feedstock acids and/or esters to biodiesel in high yield under mild conditions. The CKD and LKD catalyst systems are recyclable esterification or transesterification catalysts that can be used to prepare biodiesel, such as methyl soyate, from various feedstocks, including vegetable oils and animal fats.

Solid catalyst system for biodiesel production

A recyclable esterification or transesterification catalyst and methods for making and using the same are provided herein. The catalyst can be used to prepare biodiesel or methyl soyate from various feedstocks, including vegetable oils and animal fats. The catalyst can both esterify free fatty acids and transesterify mono-, di-, and triglycerides. The catalyst can also be combined with a metal oxide, and optionally calcined, prior to carrying out a catalytic reaction.

Porous silica and metal oxide composite-based catalysts for conversion of fatty acids and oils to biodiesel

The invention provides a method to prepare 1,3-propanediol from glycerol. The glycerol is contacted with porous silicon in the presence of an acid to provide the resulting 1,3-propanediol. The porous silicon can have at least one of three types of silicon hydride moieties of the formula Si&#x2014;H, wherein x is 1, 2 or 3. The pores of the porous silicon can be about 1 nm in diameter to about 1 micrometer, and the surface area of the porous silicon can be about 200 to about 800 m/g.

Selective reduction of glycerol by porous silicon

The present invention provides a method to prepare a fatty acid lower alkyl esters from a feedstock, such as a vegetable or an animal oil, comprising one or more fatty acid glycerol esters such as mono-, di- or tri-glycerides, and free fatty acids, comprising combining the feedstock, a lower alcohol and an acidic mesoporous silicate under conditions wherein the mesoporous silicate catalyzes the formation of the corresponding fatty acid lower alkyl ester of the free fatty acids an optionally glycerol.

Growing community of inventors

Ames, IA, United States of America

Victor Shang-Yi Lin