Double-bond isomerization process using basic zeolite catalysts

A process for the double bond isomerization of an olefin which comprises contacting said olefin with a catalyst comprising a fully metal cation-exchanged zeolite and an alkali(ne earth) metal compound.

A process for the double bond isomerization of an olefin which comprises contacting said olefin with a catalyst prepared by impregnating a zeolite with a solution of an alkali(ne earth) metal salt wherein the sum of said alkali(ne earth) metal impregnated into the zeolite and any metal cation exchanged into the zeolite is in excess of that required to provide a fully metal cation-exchanged zeolite.

A process for the double bond isomerization of an olefin which comprises contacting said olefin with a catalyst prepared by impregnating a zeolite with a molten or vaporous alkali(ne earth) metal salt which is thermally decomposable upon calcination in the presence of said zeolite and wherein the sum of said alkali(ne earth) metal impregnated into the zeolite and any metal cation exchanged into the zeolite is in excess of that required to provide a fully metal cation-exchanged zeolite and calcining the zeolite at a temperature in excess of the temperature at which the alkali(ne earth) metal salt thermally decomposes.