US 4,400,564 A · Separation of monoolefins from diolefins

Abstract

A process and apparatus for separating monoolefins from diolefins comprising contacting a mixture of monoolefins and diolefins with a complexing agent selected from the group consisting of copper(I) salts of sulfonic acids and copper(I) salts of dialkylphosphates and a suitable hydrocarbon solvent for the complexing agent under such conditions that the monoolefins and diolefins form complexes with the complexing agent. The monoolefin complex can be separated from the diolefin complex based either on the relative solubilities of the two complexes in the hydrocarbon solvent for the complexing agent or based on the relative strengths of the two complexes.

Claims19

Dependent claims

A process for at least partially separating at least one monoolefin from admixture with at least one diolefin comprising the steps of:

contacting the mixture of at least one monoolefin and at least one diolefin with a complexing agent selected from the group consisting of copper(I) salts of sulfonic acids and copper(I) salts of dialkyl phosphates and a suitable hydrocarbon solvent for said complexing agent under such conditions that the at least one monoolefin forms a substantially soluble complex, in said suitable hydrocarbon solvent, with said complexing agent and the at least one diolefin forms a substantially insoluble complex, in said suitable hydrocarbon solvent, with said complexing agent;
and
separating said substantially insoluble complex from the solution of said suitable hydrocarbon solvent which contains said substantially soluble complex to thereby effectively separate said at least one monoolefin from said at least one diolefin.

Dependencies are inferred from the claim text.

Separation of monoolefins from diolefins

Life of this patent

Separation of monoolefins from diolefins

Life of this patent

Abstract

Claims19