Atlantic Richfield Company

Exxonmobil Research and Engineering Company

Norman H Sweed

Willibald Serrand

Mitchell Jacobson

Udo Zentner

Ingo Dreher

Amos Yudovich

Hans J M Weiss

Jorg H Schmalfeld

An improved process for deasphalting a residua feedstock by use of a short vapor residence time process unit comprised of a horizontal moving bed of fluidized and/or stirred hot particles. The vapor phase product stream from said process unit is passed to a soaker drum where a high boiling fraction is separated and recycled to the process unit after undergoing reactions causing molecular weight growth. This reactive recycle using the soaker drum results in substantially improved qualities of the liquid products compared with what is achieved by once-through residua deasphalting process alternatives.

Process for deasphalting residua by reactive recycle of high boiling material

A process for recovering molybdenum values from a spent catalyst solution obtained from a crude reaction product of a molybdenum catalyzed epoxidation of an olefin with an organic hydroperoxide from which crude reaction product epoxide and alcohol corresponding to the hydroperoxide is removed, which process comprises vacuum evaporation without suppressed vaporization of the spent catalyst solution feed.

Molybdenum epoxidation catalyst recovery

A process for removing water from butylene oxides which comprises liquid extraction of crude butylene oxides with a solvent comprising acyclic, paraffinic hydrocarbons having from 7 to 9 carbon atoms per molecule.

Water removal from butylene oxides by liquid extraction with selected

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Berkeley Heights, NJ, United States of America

Norman H Sweed