Georgia Tech Research Corporation

Arteva North America S.a.r.l.

Texaco Inc.

Hoechst Celanese Corporation

Mark Gilmore White

David Anthony Schiraldi

Alexei Viktorovich Iretski

James L Gole

John D Stout

Dhiraj Sudesh Sood

Sheldon Christopher Sherman

David Alan Bruce

Scott Jeffrey Weigel

Pei-Shing E Dai

Randall Hughes Petty

Jeffrey Richard Brzozowski

Robert Ling Chiang

Mario Lorenzo Occelli

Joseph Aaron Bertrand

Laren Malcolm Tolbert

Cindy Elyse Sullivan

A nanowire, nanosphere, metallized nanosphere, and methods for their fabrication are outlined. The method of fabricating nanowires includes fabricating the nanowire under thermal and non-catalytic conditions. The nanowires can at least be fabricated from metals, metal oxides, metalloids, and metalloid oxides. In addition, the method of fabricating nanospheres includes fabricating nanospheres that are substantially monodisperse. Further, the nanospheres are fabricated under thermal and non-catalytic conditions. Like the nanowires, the nanospheres can at least be fabricated from metals, metal oxides, metalloids, and metalloid oxides. In addition, the nanospheres can be metallized to form metallized nanospheres that are capable as acting as a catalyst.

Silicon based nanospheres and nanowires

Adsorbents and methods of use thereof are provided. One representative, among others, includes an adsorbent having an alkali metal promoted, mixed trivalent layered double hydroxide (LDH) composition. When the mixed trivalent layered double hydroxide (LDH) composition is heated to a temperature ranging from about 300&#xb0; C. to 450&#xb0; C., an the adsorbent having an adsorption capacity of at least 0.8 millimoles of COadsorbed per gram of adsorbent is formed.

Adsorbents, methods of preparation, and methods of use thereof

A substituted diaryl compound or a mixture of substituted diaryl compounds, such as dimethylbiaryl compounds are isomerized by treatment with a strong acid or mixtures of strong acids in the absence of any additional catalyst. The strong acid or mixture of acids has a Hammett acidity of less than about &minus;12.6. The isomerization reaction conditions such as reaction temperature, amount of acid, and amount of solvent can be adjusted to selectively produce desired isomers in high yields. One or more desired isomers may be produced in high yields by isomerization of substituted diaryl compounds and selectively removing one or more desired isomers from the resulting equilibrium mixture of isomers. The isomer mixture may be re-isomerized subsequent to selective removal of the desired isomer to produce additional amounts of desired isomer. The isomerization may be employed to substantially reduce the amount of at least one isomer substituted in the 2-position or to substantially increase the amount of at least one isomer substituted in at least the 3-position, the 4-position or the 4-position for the production of at least substantially linear or crystalline polymers.

Acid catalyzed isomerization of substituted diaryls

The method of oxidizing the alkyl groups of alkylbenzenes using palladium phenanthroline acetate or a palladium acetate with modified phenanthroline ligand catalyst. The palladium acetate catalyst with modified phenanthroline has the following formula:

Palladium phenanthroline acetate catalyst and a method of oxidizing side-chains of alkylbenzenes with catalyst

A catalytic process for production of biphenyl and its derivatives by coupling of substituted or unsubstituted monoaryl compounds in the presence of a catalytic system comprising at least one Pd (II) compound and a strong acid or a mixture of acids. The process provides high conversions and high selectivity under mild temperature conditions and short reaction times. The strong acid or mixture of acids has a Hammett acidity of less than about -10, and contains a predominant amount of counterions which form a weak ligand complex with palladium (II). The method is highly selective to formation of desired biaryl isomers, such as 4,4'-isomers, and allows control of the relative amounts of isomers of biaryl compounds and substituted monoaryl compounds in the final product.

Catalytic system and method for coupling of aromatic compounds

Disclosed is a novel process for the synthesis of a metal-containing aluminophosphate having a layered structure and novel optically active metal-containing aluminophosphates useful as enantio-selective catalysts, which comprises:

Synthesis of metal--containing aluminophosphates with layered structure

The present invention is directed to a process for the carbonylation of an arylene to an arylaldehyde (e.g., toluene to tolualdehyde) in the presence of a solid acid catalyst. The process for making tolualdehyde comprises carbonylating toluene in the presence of either carbon monoxide or a source of carbon monoxide and in contact with a solid acid catalyst. The reaction is carried out at a temperature ranging from -40.degree. to 200.degree. C., and at a pressure ranging from 20-4000 psig.

Carbonylation via solid acid catalysis

Growing community of inventors

Woodstock, GA, United States of America

Mark Gilmore White