Process for removal of rhodium compounds from process streams
AssigneeE. I. Du Pont de Nemours and Company
InventorJoel David Citron
Life of this patent
Estimating the term…
Abstract
Dissolved rhodium compounds are removed from liquid, organic process streams in the manufacture of 1,4-hexadiene from 1,3-butadiene and ethylene by contacting the organic process streams with activated carbon of decolorizing grade for at least about 0.1 hour at about -20.degree. to +120.degree.C. The adsorbed rhodium can be recovered at a reasonable cost and reused. This invention thus provides an economic incentive.
Claims11
In a process for making 1,4-hexadiene from ethylene and 1,3-butadiene in the presence of a rhodium catalyst and of an organic liquid, the improvement of removing dissolved rhodium compounds from the organic, liquid process effluent by first contacting said effluent for at least about 0.1 hour with activated carbon of decolorizing grade, then separating it from the activated carbon.
Dependencies are inferred from the claim text.