公开(公告)号：US3660471A

公开(公告)日：1972-05-02

申请号：US3660471D

申请日：1968-10-28

申请人： NIPPON CATALYTIC CHEM IND

发明人： SAWANO TOSHIMI ,  KOIKE HIROSHI ,  KURATA NAOJI ,  OKUDA YUKIO

IPC分类号： C07C303/14 ,  C07C309/04 ,  C07C143/02

CPC分类号： C07C309/00

摘要： A PROCESS FOR PREPARATION OF MONOSULPHONIC ACIDS AT HIGH SELECTIVITY WHICH COMPRISES REACTING STRAIGHT-CHAIN PARAFFINIC HYDROCARBONS HAVING 10 TO 30 CARBON ATOMS WITH SULPHUR DIOXIDE AND OXYGEN TO PRODUCE THE CORRESPONDING SULPHONIC ACIDS, CHARACTERISED IN THAT THE REACTION IS CARRIED OUT UNDER SUCH CONDITIONS AS TO BRING ABOUT A HOMOGENEOUS REACTION LIQUID PHASE, I.E., THE CONCENTRATION OF SULPHUR DIOXIDE IN THE REACTION LIQUID PHASE BEING 7 TO 23% BY WEIGHT, THE REACTION TEMPERATURE BEING 17 TO 37*C., AND THE CONVERSION OF THE STRAIGHT-CHAIN PARAFFINIC HYDROCARBON BEING 1 TO 7%.