Surface-active compounds of the sulfobetaines family, their manufacture
and use, particularly for enhanced oil recovery
    41.
    发明授权
    Surface-active compounds of the sulfobetaines family, their manufacture and use, particularly for enhanced oil recovery 失效
    磺基甜菜碱家族的表面活性化合物,其制备和用途,特别是用于提高采收率

    公开(公告)号:US4704229A

    公开(公告)日:1987-11-03

    申请号:US767402

    申请日:1985-08-20

    摘要: New surface-active compounds of the sulfobetaines group are manufactured. They comply with the general formula: ##STR1## wherein each of R.sub.1, R.sub.2 and R.sub.3 is substantially a hydrocarbon radical, each of R.sub.4 and R.sub.5 is a hydrogen atom or substantially a hydrocarbon radical and R.sub.6 is a hydrogen atom or a hydrocarbon radical, R.sub.1 to R.sub.6 radicals containing together from 12 to 30 carbon atoms, n is an integer equal to 2 to 3, Z may be a CH.sub.3 radical or a hydroxy group, p may be 0 or 1 with, when Z is a hydroxy group and p is equal to 1, a value of 1 for m and for q; when Z is a methyl radical, with a value of 1 for p, a value of 2 for m and a value of 0 or 1 for q and, when p=0, a value of 2, 3 or 4 for the sum (m+q).These new surfactants are useful in enhanced oil recovery as micellar systems consisting of aqueous solutions and microemulsions.

    摘要翻译: 制备磺基甜菜碱基团的新的表面活性化合物。 它们符合以下通式:其中R 1,R 2和R 3各自基本上是烃基,R 4和R 5各自为氢原子或基本上烃基,R 6为氢原子或烃基,R 1 包含含有12至30个碳原子的R6基团,n是等于2至3的整数,Z可以是CH 3基或羟基,当Z是羟基时,p可以是0或1,p是 等于1,m和q的值为1; 当Z是甲基时,对于p,值为1,对于m,值为2,对于q,值为0或1,当p = 0时,对于和(m)为2,3或4 + q)。 这些新的表面活性剂可用于强化油回收,因为由水溶液和微乳液组成的胶束体系。