会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 7. 发明授权
    • Sulfonic acid purification
    • 硫酸净化
    • US3842095A
    • 1974-10-15
    • US31684172
    • 1972-12-20
    • STANDARD OIL CO
    • HEFFERN EPETRILLE DKARLL R
    • C07C309/04C08F8/34C07D89/06
    • C07C303/42C08F8/44C08F8/36C08F110/08
    • 1. THE PROCESS FOR SEPARATING A MIXTURE OF (A) OILSOLUBLE ALKENYL SULFONIC ACIDS WHEREIN THE ALKENYL MOIETY IS A PROPENE OR BUTENE POLYMER HAVING A NUMBER AVERAGE MOLECULAR WEIGHT OF ABOUT 250 TO ABOUT 500 AND (B) OILSOLUBLE SULTONES OF SAID POLYMER FROM A SULFONATION PRODUCT MIXTURE OBTAINED BY CONTINUOUSLY TREATING A VISCOUS LIQUID PROPENE OR BUTENE POLYMER HAVING NUMBER AVERAGE MOLECULAR WEIGHT OF ABOUT 250 TO ABOUT 500 WITH GASEOUS SULFUR TRIXIDE IN A FALLING-FILM REACTOR OR IN A STATIC REACTOR HAVING INTERFACIAL SURFACE GENERATING MEANS, WHICH PROCESS COMPRISES: ADMIXING SAID SULFONATION PRODUCT MIXTURE WITH ABOUT 0.25 TO ABOUT 1.25 VOLUMES OF A WATER-IMMISCIBLE INERT LIQUID HYDROCARBON SOLVENT PER VOLUME OF SAID PRODUCT MIXTURE AND ABOUT 3 TO ABOUT 20 WEIGHT PERCENT OF WATER BASED ON SAID PRODUCT MIXTURE AND HOLDING WITH AGITATION THE AQUEOUS MIXTURE AT A TEMPERATURE OF ABOUT 70* TO 175*F. FOR ABOUT 0.25 TO ABOUT 2 HOURS; THEREAFTER SEPARATING THE AQUEOUS AND HYDROCARBON SOLVENT PHASE, AND RECOVERING THE HYDROCARBON SOLVENT PHASE CONTAINING SAID MIXTURE OF OIL-SOLUBLE SULFONIC ACID AND POLYMER SULTONES.