Abstract:
ISOPARAFFIN-OLEFIN ALKYLATION PROVIDES FOR C3-C5 OLEFIN ABSORPTION WITH USE SULFURIC ACID. A HYDROCARBON PHASE CONTAINING A MINOR PORTION OF DIALKYL SULFATES IS SEPARATED, GASEOUS COMPONENTS ARE REMOVED, AND THE DEGASSES HYDROCARBON PHASE IS PASSED TO THE ALKYLATION REACTION. THE ACID PHASE CONTAINING A MAJOR PORTION OF DIALKYL SULFATES IS EXTRACTED WITH AN ISOPARAFFIN HYDROCARBON SOLVENT; THE EXTRACT IS TREATED WITH CONCENTRATED SULFURIC ACID; THE ACID-TREATED EXTRACT IS PASSED TO THE ALYLATION REACTION, AND THE TREATING ACID IS PASSED TO THE ABSORPTION REACTION. THE DIALKYL SULFATES ARE ALKYLATED WITH IOSPARAFFIN IN THE PRESENCE OF AN ALKYLATION ACID, WHICH IS FORMED IN THE REACTION OF SAID DIALKYL SULFATES WITH SAID ISOPARAFFIN.