Eastman Chemical Company

Eastman-kodak Company

Other

Shane Kipley Kirk

Kenny Randolph Parker

Mesfin Ejerssa Janka

Charles Edwan Sumner, Jr

Scott Donald Barnicki

Ashfaq Shahanawaz Shaikh

Robert Thomas Hembre

Lee R Partin

Sumit Chakraborty

Elaine Beatrice Mackenzie

Larry Wayne Blair

Michael Richard Laningham

E Phillip Smith

Joy Lynn Laningham

Venkateswarlu Bhamidi

Guoxiong Hua

John Derek Woollins

Stephen H Wu

Kevin John Fontenot

Venkata Bharat Ram Boppana

Robert Richard Dykstra

Michael E Burns

Robert Lin

Jeffrey Scott Dupont

Waylon Lewellyn Jenkins

Ruairi Seosamh O'Meadhra

Craig Alan Hoyme

George Chester Zima

Michael Charles Morrow

Bradford Russell Bowers

Yeong-Ho Chang

Paula Moody

Robert Lee Eagan

Bhaskar Krishna Arumugam

Carol J Greene

David S Kashdan

Brian David McMurray

Thomas Hugh Williams

Kimberly T Peters

Gary Paul Lutz

Jarvey Eugene Felty, Jr

John R Gossett, Jr

Eddie Joseph Eckart

Tony Lee Sander

Jeffrey William Green

Dimmick Lee Bymaster

Mark A Thrasher

Amy E Castle

Leo Paul Voegtli

Kenneth P Perry

Lee Reynolds Partin

Charles Edwan Summer

Mesfin Ejerssa Janke

The present invention relates to a method for the manufacture of cyclododecasulfur, a cyclic sulfur allotrope wherein the number of sulfur (S) atoms in the allotrope's homocyclic ring is 12. The method includes reacting a metallasulfur derivative with an oxidizing agent in a reaction zone to form a cyclododecasulfur-containing reaction mixture.

Method for the manufacture of cyclododecasulfur

Disclosed is an oxidation process to produce a crude carboxylic acid product carboxylic acid product. The process comprises oxidizing a feed stream comprising at least one oxidizable compound to generate a crude carboxylic acid slurry comprising furan-2,5-dicarboxylic acid (FDCA) and compositions thereof. Also disclosed is a process to produce a dry purified carboxylic acid product by utilizing various purification methods on the crude carboxylic acid.

Furan-2,5-dicarboxylic acid purge process

A process for purifying a crude furan 2,5-dicarboxylic acid composition (cFDCA) by hydrogenation of a FDCA composition dissolved in a hydrogenation solvent such as water, and hydrogenating under mild conditions, such as at a temperature within a range of 130&#xb0; C. to 225&#xb0; C. by contacting the solvated FDCA composition with hydrogen in the presence of a hydrogenation catalyst under a hydrogen partial pressure within a range of 10 psi to 900 psi.

Purifying crude furan 2,5-dicarboxylic acid by hydrogenation and a purge zone

A process for purifying a crude furan 2,5-dicarboxylic acid composition (cFDCA) by hydrogenation of a FDCA composition dissolved in a hydrogenation solvent such as water, and hydrogenating under mild conditions, such as at a temperature within a range of 130&#xb0; C. to 225&#xb0; C. by contacting the solvated FDCA composition with hydrogen in the presence of a hydrogenation catalyst under a hydrogen partial pressure within a range of 10 psi to 900 psi. A product FDCA composition is produced having a low amount of tetrahydrofuran dicarboxylic acid, a low b*, and a low amount of 5-formyl furan-2-carboxylic acid (FFCA).

A process for recovering a concentrated sulfopolyester dispersion is provided comprising routing an aqueous dispersion comprising a water-dispersible sulfopolyester to a sulfopolyester concentration zone to remove water from the aqueous dispersion to produce the concentrated sulfopolyester dispersion and a recovered water stream; wherein the sulfopolyester concentration zone comprises at least one ultrafiltration membrane.

Ultrafiltration process for the recovery of concentrated sulfopolyester dispersion

A process for recovering a primary polymer concentrate stream is provided. The process comprises routing a second mother liquor stream to a primary concentration zone to remove water from the second mother liquor stream to produce the primary polymer concentrate stream; wherein the primary concentration zone comprises at least one ultrafiltration membrane. A process is also provided to recover sulfopolyester from the primary polymer concentrate stream and to produce articles therefrom.

Ultrafiltration process for producing a sulfopolyester concentrate

This invention relates to hydrogenation processes for making cyclohexane compounds. More specifically, this invention relates to hydrogenation processes in the presence of tertiary amide solvent compounds, as well as compositions that can result from such processes. The invention thus provides processes for making cyclohexanecarboxylic acid compounds and processes for making hydroxymethylcyclohexane compounds.

Processes for making cyclohexane compounds

This invention relates to hydrogenation processes for making hydroxymethylbenzoic acid compounds. More specifically, this invention relates to hydrogenation processes in the presence of tertiary amide solvent compounds, as well as compositions that can result from such processes. The invention thus provides processes for making hydroxymethylbenzoic acid compounds.

Processes for making hydroxymethylbenzoic acid compounds

Purifying crude furan 2,5-dicarboxylic acid by hydrogenation

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

Disclosed is a method for the recovery of crystalline terephthalic acid containing less than about 150 ppmw p-toluic acid by subjecting a solution of terephthalic acid containing minor amounts of p-toluic acid to crystallization in a crystallization zone comprising a plurality of series-connected crystallizers wherein the solution is subjected to rate-controlled evaporative cooling by sequential reduction in pressure and temperature to cause crystallization of terephthalic acid, wherein the pressure of the solution at the end of the crystallization zone is about ambient pressure or less. Solvent which is evaporated from the crystallizers is collected and condensed and the condensed solvent is returned to the crystallization zone at a point subsequent to the crystallizer from which it was obtained.

Crystallization method for production of purified aromatic dicarboxylic acids

The invention relates to a process for purifying and decolorizing a phenyl ester salt. The process combines a phenyl ester salt with a solvent to form a mixture and then stirs the mixture to form a slurry. The phenyl ester salt is substantially insoluble in this solvent. The process then collects the phenyl ester salt from the slurry. The collected phenyl ester salt may then be optionally dried or recrystallized. The collected phenyl ester salt is dissolved in a solvent to form a solution. The solution is decolorized and then spray dried to form a powder of the phenyl ester salt. As a result of the process the phenyl ester salt powder has a higher purity and an improved color as compared to the starting phenyl ester salt.

Purification of phenyl ester salts

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Church Hill, TN, United States of America

Shane Kipley Kirk