abstract |
TO PREPARE AROMATIC HYDROCARBON SULPHONATES, IN ACCORDANCE WITH THE INVENTION, SULFURIC ANHYDRIDE IS REACTED WITH HYDROCARBON, ON DECANTED, THE UPPER PHASE OBTAINED BY DECANTATION IS NEUTRALIZED, AND THERE IS SEPARATED FROM THIS, FROM THIS. NEUTRALIZED PHASE, A PRODUCT CONSTITUTES ESSENTIAL MONOSULPHONATES. THESE SULPHONATES ARE SUITABLE FOR THE ASSISTED RECOVERY OF CRUDE OIL. |