Eastman Chemical Company

Eastman Specialties Holdings Corporation

Craig Alan Hoyme

Kenny Randolph Parker

Robert Scott Huss

Phillip Michael Cook

Jerome Leonard Stavinoha, Jr

Terry A Oldfield

George Chester Zima

Suzanne Winegar Dobbs

Charles Everette Kelly

Carey Dan Ashcroft

Kelmara Khadene Kelly

Joseph Jerome Puhr

Mary Caraway Crow

Shane Kipley Kirk

Robert Sterling Kline

Edwin Franklin Holcombe, Iii

The present disclosure relates to a process for producing high-purity acrylic acid using a dividing wall distillation column and in some instances using water as an entrainer and azeotroping agent. This disclosure provides a process for separating acrylic acid from recovered feed streams which comprise saturated organic acids including propionic acid. The resulting acrylic acid product is of sufficient purity to produce acrylate esters and high molecular weight acrylic acid polymers.

Acrylic acid purification via dividing wall columns

The present disclosure relates to a process for producing high-purity acrylic acid using azeotropic distillation and using water as an entrainer. This disclosure provides a process for separating acrylic acid from recovered feed streams which comprise acrylic acid and saturated organic acids including propionic acid. The resulting acrylic acid product is of sufficient purity to produce acrylate esters and high molecular weight acrylic acid polymers.

Separation of propionic acid from acrylic acid via azeotropic distillation

Processes and systems for separating a mixture of three or more chemical components into multiple product streams each enriched in one of the components are provided herein. In some aspects, the present invention relates to processes for the separation of a chemical mixture including at least a heavy key component, an intermediate key component, and a light key component to form a product stream enriched in the light key component, a product stream enriched in the intermediate key component, and a product stream enriched in the heavy key component. Systems described herein may include one or more thermally coupled distillation columns including, for example, a dividing wall column, or a plurality of distillation columns arranged in a thermally integrated configuration.

Thermally integrated distillation systems and processes using the same

This invention is generally directed to a batch process for the preparation of cis-2,2,4,4-tetramethylcyclobutane-1,3-diol comprising:

Batch process for the preparation of cis-2,2,4,4-tetramethylcyclobutane-1,3-diol

This invention is generally directed to a process for the preparation of cis-2,2,4,4-tetramethylcyclobutane-1,3-diol comprising:

Process for the preparation of cis-2,2,4,4-tetramethylcyclobutane-1,3-diol

A method for isolating 2,2,4,4-tetramethyl-1,3-cyclobutanediol (TMCD) solids from an isolated feed slurry formed in a TMCD process comprising TMCD, a liquid phase, and impurities by (a) treating the isolated feed slurry in a product isolation zone to produce an isolated TMCD product wet cake, a mother liquor, and impurities; wherein the product isolation zone can comprise at least one rotary pressure drum filter.

Process for isolating crystallized 2,2,4,4-tetramethyl-1,3-cyclobutanediol (TMCD) particles utilizing pressure filtration

A process for isolating 2,2,4,4-tetramethyl-1,3-cyclobutanediol (TMCD) by (a) crystallizing TMCD in a crystallization zone to generate a slurry comprising TMCD solids and (b) isolating the TMCD solids in a solid liquid separation zone to generate a wet cake and a mother liquor stream.

Process for 2,2,4,4-tetramethylcyclobutane-1,3-diol crystallization

Process for isolating crystallized 2,2,4,4 tetramethyl-1,3-cyclobutanediol (TMCD) particles utilizing pressure filtration

Disclosed is a process for the recovery of a phytolipid composition from a vegetable oil by-product. The phytolipid composition produced comprises squalene, phytosterols, mixed tocopherols and tocotrieneols, and vegetable wax and is useful as an emollient. The phytochemical composition may be applied directly to the skin to provide emolliency. Alternatively, the phytolipid composition may be formulated in various aqueous or anhydrous cosmetic compositions such as creams, lotions, gels, ointments, lip balms, sticks, or pencils for treatment of the skin and lips. The phytolipid composition also may be incorporated into foods, beverages, and nutraceuticals to provide health benefits.

Process for the recovery of a phytolipid composition

A process for hydrolyzing an alkyl ester to produce a carboxylic acid product and an ether product, the process includes the steps of introducing into a reaction zone of a reactive distillation column a feed containing the alkyl ester wherein the reaction zone is at a temperature and pressure to preferentially produce an ether from the ester; and recovering the ether and the carboxylic acid.

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Fall Branch, TN, United States of America

Craig Alan Hoyme