Eastman Chemical Company

Grupo Petrotemex S.a. De C.v.

Timothy Alan Upshaw

Ronald Buford Sheppard

Alan George Wonders

Raymond Elbert Fogle, Iii

Kenny Randolph Parker

Robert Lin

Duane Alan Hall

Max Allen Weaver

Mesfin Ejerssa Janka

Scott Donald Barnicki

Robert Thomas Hembre

Jason Clay Pearson

Gerry Foust Rhodes

Marc Alan Strand

Robert Scott Huss

Xiaopeng Shan

Crystal Leigh Kendrick

Stephanie Rollins Testerman

Dewey Wayne Fuller, Jr

Gertrude Williams

Iii Fogle Raymond Elbert

Raymond Elbert Iii Fogle

A transfer-hydrogenation process for preparing a carbonyl compound and an alcohol compound comprises the steps of (a) contacting a first carbonyl compound with a first alcohol compound in the presence of a transfer-hydrogenation catalyst in a first reaction zone at conditions effective to form a second carbonyl compound from the first alcohol compound and a second alcohol compound from the first carbonyl compound, and (b) removing the second carbonyl compound from the first reaction zone during step (a). The first carbonyl compound is a saturated aldehyde or ketone, or an &#x3b1;,&#x3b2;-unsaturated aldehyde or ketone. The first alcohol compound is a primary or secondary alcohol. The second alcohol compound is &#x3b1;,&#x3b2;-saturated. The transfer-hydrogenation catalyst includes a Group 8 to 11 metal. This process is useful for preparing and higher value alcohols, such as butanol or 2-ethylhexanol, from the corresponding carbonyl compounds by engaging lower alcohol (C-C) feedstocks instead of hydrogen (H).

Transfer-hydrogenation process

The invention provides improved energy content in and shaft power recovery from off-gas from xylene oxidation reactions while at the same time minimizing wastewater treatment cost. More shaft power is produced using off-gas than is required to drive the main air compressor, even with preferred, relatively low oxidation temperatures. Simultaneously, an amount of wastewater greater than byproduct water from oxidation of xylene is kept in vapor form and treated along with off-gas pollutants in a self-sustaining (self-fueling) gas-phase thermal oxidative destruction unit. Optionally, off-gas is combined from multiple xylene oxidation reactors, comprising primary and/or secondary oxidation reactors and forming TPA and/or IPA. Optionally, air compressor condensate and caustic scrubber blowdown are used in a TPA process or as utility water, effectively eliminating normal flow of liquid wastewater effluent from a TPA plant. Optionally, PET off-gas containing the water of PET formation is treated in a shared thermal oxidative destruction unit, effectively eliminating normal flow of liquid wastewater effluent from a combined pX-to-TPA-to-PET plant.

Dicarboxylic acid production with self-fuel oxidative destruction

Dicarboxylic acid production with direct fired off-gas heating

Dicarboxylic acid production with enhanced energy recovery

Dicarboxylic acid production with minimal wastewater generation

The invention provides improved energy content in and shaft power recovery from off-gas from xylene oxidation reactions while at the same time minimizing wastewater treatment cost. More shaft power is produced using off-gas than is required to drive the main air compressor, even with preferred, relatively low oxidation temperatures. Simultaneously, an amount of wastewater greater than byproduct water from oxidation of xylene is kept in vapor form and treated along with off-gas pollutants in a self-sustaining (self-fueling) gas-phase thermal oxidative destruction unit. Optionally, off-gas is combined from multiple xylene oxidation reactors, comprising primary and/or secondary oxidation reactors and forming TPA and/or IPA.

Integrated co-production of dicarboxylic acids

This invention relates to a process for the manufacture of aromatic carboxylic acids by exothermic liquid phase oxidation of an aromatic feedstock. More particularly, this invention relates to the efficient energy recovery of the exotherm produced by the liquid phase oxidation of an aromatic feedstock. Also, this invention relates to the efficient energy recovery of the exotherm produced by the liquid phase oxidation of an aromatic feedstock while also utilizing the heat from the energy of oxidation to efficiently remove water resulting from the exothermic oxidation reaction.

Process for energy recovery and water removal in the preparation of aromatic carboxylic acids

The present invention relates to a process by which a carboxylic acid/diol mixture is obtained from a carboxylic acid/solvent slurry without isolation of a substantially dry carboxylic acid solid. More specifically, the present invention relates to a process by which a terephthalic acid/ethylene glycol mixture is obtained from a terephthalic acid/solvent slurry without isolation of a substantially dry terephthalic acid solid.

Process for production of a carboxylic acid/diol mixture suitable for use in polyester production

This application discloses amber colored polyesters suitable for packaging food and beverages. The amber polyester compositions provide excellent blockage of UV and visible light over the wavelength ranges of from about 320-550 nm, rendering them suitable for packaging materials sensitive to ultraviolet and visible light over this wavelength range, particularly beer.

Amber polyester compositions and container articles produced therefrom

Growing community of inventors

Kingsport, TN, United States of America

Timothy Alan Upshaw