The United States of America As Represented by the United States

Edward P Ladner

Malvina Farcasiu

Phillip B Kaufman

Richard R Anderson

Patricia A Eldredge

A method for preparing olefins and halogenated olefins is provided comprising contacting halogenated compounds with diamonds for a sufficient time and at a sufficient temperature to convert the halogenated compounds to olefins and halogenated olefins via elimination reactions.

Method of dehalogenation using diamonds

A method of preparing a fine particle iron based hydrocracking catalyst and the catalyst prepared thereby. An iron (III) oxide powder and elemental sulfur are reacted with a liquid hydrogen donor having a hydroaromatic structure present in the range of from about 5 to about 50 times the weight of iron (III) oxide at a temperature in the range of from about 180.degree. C. to about 240.degree. C. for a time in the range of from about 0 to about 8 hours. Various specific hydrogen donors are disclosed. The catalysts are active at low temperature (&lt;350.degree. C.) and low pressure.

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Pittsburgh, PA, United States of America

Edward P Ladner