Eastman Chemical Company

Stanley John Okrasinski

Jeffrey Scott Kanel

John Robert Monnier

Steven Leroy Cook

Shaowo Liang

Timothy W Price

Dewey W Fuller, Jr

Patricia N Mercer

Regina Michelle Moncier

Disclosed is a process for the recovery of phosphorus and/or iodine containing catalyst components, present as an organophosphorus compound such as trihydrocarbylphosphine compounds and tetrahydrocarbylphosphonium compounds, from a solution of at least one such organophosphorus compound in an organic solvent by the steps comprising (1) converting the organophosphorus compound to an iodide complex of a organophosphonium compound which is insoluble in the organic solvent; and (2) separating the insoluble iodide complex of the organophosphonium compound from the solution. The process also results in the recovery of iodine values present in the solution.

Process for the recovery of phosphorus and iodine containing catalyst components

Disclosed is an improved liquid phase process for the preparation of an acetyl product comprising acetic acid, by the carbonylation of a carbonylatable reactant material comprising methanol, methyl acetate, dimethyl ether or a mixture thereof in the presence of a catalyst system comprising a nickel component and an iodide component. In the separation of the crude acetyl product mixture from a liquid containing the non-volatile catalyst components, precipitation of metals and other catalyst components is avoided or minimized by maintaining a hydrogen pressure of at least 0.34 bar absolute within the flash evaporator zone wherein the separation occurs.

Nickel-catalyzed carbonylation process

Disclosed is a process for the removal of organic chlorides from furan and hydrogenated furans by contacting a crude product stream comprising (i) furan, 2,3-DHF, 2,5-DHF, THF or a mixture thereof and (ii) one or more organic chlorides with a copper-containing scavenger material.

Process for the removal of organic chlorides from furan and hydrogenated

Disclosed is a process for the purification of carboxyl streams such as product streams comprising one or more carboxyl compounds selected from carboxylic acids, carboxylic anhydrides and alkylidene dicarboxylates. The process provides a means for the reduction of the iodine content of carboxyl compound product streams which are contaminated with one or more iodine compounds.

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Kingsport, TN, United States of America

Stanley John Okrasinski