Sasol Technology Proprietary Limited

Alta Spamer

Jan Mattheus Botha

Muzikayise Mthokozisi Justice Mbatha

Joan Swart

Bongani Simon Nkosi

The invention provides a process for the production of propylene by butene metathesis. The process includes contacting a feedstock, which contains butene selected from 1-butene, 2-butene and mixtures thereof, with a catalyst which includes a catalytic amount of at least one metal oxide selected from oxides of the transition metals. The contacting is under reaction conditions which include a temperature of 300-600 &oslash;C. and a pressure of 1 20 atmospheres, and converts the butene to propylene, thereby to produce a reaction product containing propylene. C &mdash; and higher hydrocarbons produced by the metathesis are separated from the reaction product and are recycled to the reaction where they are contacted with the catalyst.

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Vanderbijlpark, South Africa

Alta Spamer