Alexei V Iretski

US Patent:

6433236, Aug 13, 2002

Filed:

Mar 21, 2000

Appl. No.:

09/531248

Inventors:

David Anthony Schiraldi - Charlotte NC
Alexei Viktorovich Iretski - Atlanta GA
Sheldon Christopher Sherman - Snellville GA
Laren Malcolm Tolbert - Marietta GA
Mark Gilmore White - Woodstock GA

Assignee:

Arteva North America S.A.R.L. - Zurich

International Classification:

C07C 522

US Classification:

585477, 585 25, 585 27, 568722, 568723, 568729, 568730, 568783

Abstract:

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 -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.

US Patent:

7442232, Oct 28, 2008

Filed:

Jun 19, 2003

Appl. No.:

10/518188

Inventors:

Mark G. White - Woodstock GA, US
Alexei V Iretski - Sault Sainte Marie MI, US
Scott Jeffrey Weigel - Allentown PA, US
Robert Ling Chiang - Basking Ridge NJ, US
Jeffrey Richard Brzozowski - Kunkletown PA, US

Assignee:

Georgia Tech Research Corporation - Atlanta GA

International Classification:

B01D 53/04

US Classification:

95 96, 95139, 95900, 423230, 502 56, 502103

Abstract:

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 C. to 450 C. , an the adsorbent having an adsorption capacity of at least 0. 8 millimoles of COadsorbed per gram of adsorbent is formed.

US Patent:

20110065814, Mar 17, 2011

Filed:

Sep 17, 2010

Appl. No.:

12/885397

Inventors:

Theodore D. Matson - Goleta CA, US
Peter C. Ford - Santa Barbara CA, US
Gerald Macala - Santa Barbara CA, US
Alexei Iretski - Sault Sainte Marie MI, US

International Classification:

C10J 3/46
C07C 27/06

US Classification:

518702, 252373

Abstract:

A method of catalytically preparing a fluid product from solid carbonaceous material is described. In the method, at least one of the following equilibria is established by one or more catalysts: a) CHOH═CO+2H, b) CO+HO═CO+H. In some embodiments, the solid carbonaceous material is woody biomass. Components of the fluid product can include one or a combination of C-Calcohols. In certain embodiments, the method can be practiced with substantially all of the carbon in the carbonaceous material being converted to the fluid product. Also, in some embodiments, the fluid product can be prepared with substantially no char formation. The fluid product of various embodiments can be used directly as fuel or as a reagent for preparing commodity chemicals without the need for separating the fluid product components.

US Patent:

6281382, Aug 28, 2001

Filed:

Jun 1, 2000

Appl. No.:

9/585458

Inventors:

Mark G. White - Woodstock GA
Alexei V. Iretski - Atlanta GA

Assignee:

Georgia Tech Research Corp. - Atlanta GA

International Classification:

C07C 51265
C07C 69773
C07C 4536
C07C 2710

US Classification:

562412

Abstract:

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: ##STR1## wherein R. sub. 1 is selected from the group consisting of alkyl groups of from 1 to 3 carbon atoms, OH, and NO. sub. 2 groups and halogen and hydrogen atoms with at least six of the R. sub. 1 groups being hydrogen atoms in the ligand.

US Patent:

20140343174, Nov 20, 2014

Filed:

Jul 3, 2014

Appl. No.:

14/323264

Inventors:

- Oakland CA, US
Peter C. Ford - Santa Barbara CA, US
Gerald Macala - Santa Barbara CA, US
Alexei Iretski - Sault Sainte Marie MI, US

Assignee:

The Regents of the University of California - Oakland CA

International Classification:

C07C 29/151

US Classification:

518704

Abstract:

A method of catalytically preparing a fluid product from solid carbonaceous material is described. In the method, at least one of the following equilibria is established by one or more catalysts: a) CHOH═CO+2H, b) CO+HO═CO+H. In some versions, the solid carbonaceous material is woody biomass. Components of the fluid product can include one or a combination of C-Calcohols, In certain versions, the method can he practiced with substantially all of the carbon in the carbonaceous material being converted to the fluid product. Also, in some versions, the fluid product can be prepared with substantially no char formation. The fluid product of various versions can be used directly as fuel or as a reagent for preparing commodity chemicals without the need for separating the fluid product components.