art batch reactors such as autoclaves are also suitable for example isomerized product from the isomerization reaction and catalyst are charged to an autoclave which is then pressured with ethylene and heated to the reaction temperature to allow the reaction to be carried out alternatively isomerized product from the isomerization reaction and catalyst are charged to a stirred tank reactor and ethylene is bubbled through the reaction at reaction temperature in order to carry out the reaction after reaction is complete the reaction mixture can be treated to remove any remaining catalyst by well known means such as filtration or centrifugation at this point styrene and 1 pentene can be separated from the reaction mixture by traditional means for example flash distillation can be used to remove the 1 pentene and ethylene followed by further distillation to separate pentene and ethylene and fractional distillation can be used separate out the styrene inert solvents such as alkanes e g cyclohexane dodecane hexadecane octane nonane etc can be utilized in either or all of the butenylation isomerization or ethenolysis steps the ranges and limitations provided in the instant specification and claims are those which are believed to particularly point out and distinctly claim the instant invention it is however understood that other ranges and limitations that perform substantially the same function in substantially the same way to obtain the same or substantially the same result are intended to be within the scope of the instant invention as defined by the instant specification and claims the invention will be described by the following examples which are provided for illustrative purposes and are not to be construed as limiting the invention finely powdered calcium oxide was heated in a quartz tube to 575 u00b0.