Ethyl Corporation

Wayne D Jensen

James T Kao

This invention relates to an improvement in a process for centrifuging a polyhalogenated product, the improvement comprising enhancing the porosity of a centrifuge filter cloth subsequent to one or more centrifugation cycles by effectively treating the centrifuge filter cloth with an amount of filter cloth treatment solution and at a temperature which are sufficient to enhance the centrifuge filter cloth porosity.

Centrifugation process for separating polyhalogenated product from

A process for obtaining a substantially dry alcohol from a mixture comprising alcohol and water in a non-azeotropic amount by utilizing at least a portion of the alcohol in the mixture as the stripping medium.

Stripping process for water removal from alcohol

A process for preparing 5-aroylpyrrole compounds and recovering them from crude solutions by extracting with a mixed organic extractant such as an aromatic hydrocarbon-alkanol mixture followed by aqueous extraction with a base, decolorizing, and recovering the 5-aroylpyrrole compound for final purification.

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Magnolia, AR, United States of America

Wayne D Jensen