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    Continuous process for sulfurizing polybutenes
    1.
    发明授权
    Continuous process for sulfurizing polybutenes 失效
    用于硫化聚氨酯的连续方法

    公开(公告)号：US3631019A

    公开(公告)日：1971-12-28

    申请号：US3631019D

    申请日：1968-10-17

    Applicant: STANDARD OIL CO

    Inventor： HERDER MARVIN J DEN ,  BORG ARTHUR C

    IPC: B01J10/00 ,  C08F8/34 ,  C07G17/00

    CPC classification number: B01J10/005 ,  C08F8/34 ,  C08F110/08

    Abstract: A CONTINUOUS PROCESS FOR SULFURIZING POLYBUTENES FOR USE IN METAL WORKING LUBRICANTS, AND A REACTOR FOR USE IN CARRYING OUT THE CONTINUOUS PROCESS, INCLUDING INTRODUCING MOLTEN SULFUR AND POLYBUTENES INTO AND ENCLOSED CHAMBER WHERE FLOW THERETHROUGH IS INTERCEPTED TO PROVIDE A SERIES OF REACTION ZONES, MIXING TO PROVIDE INTIMATE CONTACT IN AT LEAST EACH ZONE SITUATED IN THE INITIAL ONE THIRD OF THE CHAMBER VOLUME, RECYCLING SULFUR COLLECTING ON THE BOTTOM OF AT LEAST THE ZONES IN THE INITIAL ONE THIRD OF THE VOLUME, ALLOWING FLOW FROM ONE ZONE TO ANOTHER, MAINTAINING THE CHAMBER AT FROM 300*F. TO 400*F. AND COORDINATING THE VARIOUS FLOW RATES AND THE CHAMBER VOLUME WITH THE REACTION TEMPERATURE TO PROVIDE A PREDETERMINED CHAMBER RESIDENCE TIME.

    Process for enhancing the sulfur retention of sulfurized polybutenes
    7.
    发明授权
    Process for enhancing the sulfur retention of sulfurized polybutenes 失效
    提高磺化聚氨酯硫磺​​保持性的方法

    公开(公告)号：US3595820A

    公开(公告)日：1971-07-27

    申请号：US3595820D

    申请日：1968-10-14

    Applicant: STANDARD OIL CO

    Inventor： HERDER MARVIN J DEN ,  BORG ARTHUR C ,  VIENNA PAUL C

    IPC: C08F8/34 ,  C08F47/00

    CPC classification number: C08F8/34 ,  C08F110/08

    Abstract: IN A PROCESS FOR FORMING SULFURIZED POLYBUTENES FOR USE IN METAL WORKING OILS INCLUDING REACTING MOLTEN SULFUR WITH LOW MOLECULAR WEIGHT POLYBUTENES, STRIPPING TO REMOVE LIGHT UNDERIRABLE COMPONENTS SUCH AS HYDROGEN SULFIDE, VARIOUS MERCAPTANS AND UNREACTED POLYBUTENES, REMOVING ENTRAINED SULFUR AND COOLING TO AMBIENT CONDITIONS, THE IMPROVEMENT WHICH COMPRISES ENHANCING THE RETENTION OF CHEMICALLY COMBINED SULFUR IN SUCH POLYBUTENES BY MAINTAINING THE PH IN THE RANGE OF ABOUT 2.0 TO 5.5 FOR A PERIOD OF TIME SUFFICIENT TO SUBSTANTIALLY STABILIZE THE CHEMICALLY COMBINED SULFUR CONTENT OF THE SULFURIZED POLYBUTENES. SUITABLY, THE PH IS MAINTAINED WITHIN THE RANGE SET FORTH FROM AFTER THE STRIPPING STEP UNTIL AT LEAST THE AMBIENT CONDITIONS ARE REACHED. CONTINUED MAINTENANCE OF THE PH DURING STORAGE IS ALSO DESIRABLE.

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