公开(公告)号：US3796661A

公开(公告)日：1974-03-12

申请号：US3796661D

申请日：1971-07-19

Applicant: TEXACO INC

Inventor： SURATWALA J ,  MAY J ,  ALLEN B

IPC: C07D339/04 ,  C07G99/00 ,  C10M135/04 ,  C10M169/00 ,  C10M1/38

CPC classification number: C10M135/04 ,  C07C325/02 ,  C07D339/04 ,  C07G17/004 ,  C10M2207/121 ,  C10M2207/122 ,  C10M2207/125 ,  C10M2207/129 ,  C10M2209/084 ,  C10M2215/04 ,  C10M2215/086 ,  C10M2215/26 ,  C10M2215/28 ,  C10M2217/024 ,  C10M2217/044 ,  C10M2217/045 ,  C10M2217/046 ,  C10M2217/06 ,  C10M2219/022 ,  C10M2219/082 ,  C10M2219/10 ,  C10M2219/102 ,  C10M2219/104 ,  C10M2219/106 ,  C10M2221/041 ,  C10M2223/04 ,  C10M2223/042 ,  C10M2229/02 ,  C10M2229/05 ,  C10N2240/02 ,  C10N2240/04 ,  C10N2240/042 ,  C10N2240/044 ,  C10N2240/046 ,  C10N2240/401

Abstract: SULFURIZED TRIISOBUTYLENE, LUBRICATING OIL COMPOSITIONS THEREOF HAVING IMPROVED EXTREME PRESSURE PROPERTIES AND REDUCED COPPER CORROSIVITY, AND METHOD OF MANUFACTURE OF SAID SULFURIZED TRIISOBUTYLENE COMPRISING THE SEQUENTIAL STEPS: (1) FORMING A MIXTURE OF TRIISOBUTYLENE AND SULFUR UTILIZING A MOLE RATIO OF TRIISOBUTYLENE TO SULFUR OF BETWEEN ABOUT 1:2.5 AND 1:5 AT BETWEEN ABOUT 50 AND 100* 100*F., (2) CONTINUOUSLY BLOWING THE RESULTANT MIXTURE WITH AN INERT GAS AT A RATE OF BETWEEN ABOUT 0.1 AND 1 S.C.F.G./GALLON MIXTURE AT A TEMPERATURE BETWEEN ABOUT 375 AND 465*F. UNDER A CONTINUOUS PRESSURE OF BETWEEN ABOUT 20 AND 100 P.S.I.G. UNTIL THE FREE SULFUR CONTENT IN SAID RESULTANT REACTION MIXTURE IS LESS THAN 0.3 WT. PERCENT; (3) STRIPPING THE BLOWN MIXTURE WITH INERT GAS AT A RATE OF BETWEEN ABOUT 0.1 AND 1 S.C.F.G./GALLON AT A TEMPERATURE OF BETWEEN ABOUT 320 AND 360*F. AT SUBATMOSPHERIC PRESSURE; AND (4) FILTERING THE STRIPPED PRODUCT.