PROCESS FOR THE MANUFACTURE OF ALDEHYDES

摘要

An improvement in the process for the continuous manufacture of an aldehyde by reaction of an olefin with carbon monoxide and hydrogen in the presence of a rhodium catalyst at an elevated temperature and pressure followed by distillative separation of the non-converted feedstocks and low boiling components of the reaction mixture, the improvement residing in emplying a carbon monoxide/hydrogen mixture containing 2-20 ppm sulfur and recycling residual rhodium compounds, both dissolved and suspended in the distillation residue, to the reaction zone.