Amoco Corporation

Standard Oil Company (indiana)

April J Evans

Albert L Hensley, Jr

William I Beaton

Cavit Akin

William D Prevatt

A composition and method for obtaining an improved stable composition of naturally occurring pyrethroid substances which naturally contain polyacetylenic substances includes inactivating the polyacetylenic substances by selective hydrogenation or removal of the polyacetylenic substances by extraction.

Pyrethrum stabilization by inactivation of natural acetylenic impurities

Disclosed is an improved catalyst suitable for use in an ebullated bed process for the hydrodemetallation, hydrodesulfurization, and hydrocracking of heavy hydrocarbon feedstocks containing asphaltenes, metals, and sulfur compounds. The disclosed catalyst comprises a relatively small amount of cobalt, i.e., 0.4 to 0.8 wt. % incorporated with a high macropore volume Group VIB metal containing catalyst.

Catalyst for demetallation and desulfurization of heavy hydrocarbons

Disclosed is an improved multi-stage process for the hydroconversion of heavy hydrocarbon feedstocks containing asphaltenes, metals and sulfur compounds. The process is characterized by the use of a relatively inexpensive demetallation catalyst in a first reaction zone comprising a Group VIB and/or a Group VIII metal deposed on a high macropore volume inorganic support followed by the use of a desulfurization catalyst in a second reaction zone comprising a Group VIB and a Group VIII metal on a high macropore volume inorganic oxide support.

Process for demetallation and desulfurization of heavy hydrocarbons

Disclosed is an improved ebullated bed process for the hydroconversion of heavy hydrocarbon feedstocks containing asphaltenes, metals, and sulfur compounds. The disclosed process is characterized by the use of a catalyst comprising a relatively small amount of cobalt, i.e., 0.4 to 0.8 wt. % incorporated with a high macropore volume Group VIB metal containing catalyst.

A process for producing aromatic compound having at least one cyano group and one amide group or carboxyl group which process comprises subjecting aromatic polynitrile compound containing no carboxyl groups in a simple medium to the action of one or more microorganisms which have a nitrilase system capable of selectively hydrolyzing one cyano group of the polynitrile.

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Naperville, IL, United States of America

April J Evans