SULFURIC ACID ALKYLATION WITH P-PHENYLENEDIAMINE

摘要

An improvement for a conventional alkylation process is disclosed in which a low molecular weight olefin and an isoparaffin are mixed in contact with an acid catalyst at controlled temperatures. The improvement comprises the addition of small concentrations of N-N1-diisopropyl p-phenylenediamine or p-phenylene diamine to the alkylation catalyst to improve the quality and yield of the desired branched chain paraffinic isomers or alkylate produced in the gasoline boiling range.