- Active agents, surface-active compounds of the family of sulfobetaines, their preparation and their application in particular for the recovery of the assisted

摘要

Is described in the new compounds of the surfactant - the active group of sulfobetaines, their preparation and their use. / p & & p & the products studied meet has the general formula: & br / (see appended drawing in bopi) & br / in which r, r and r represent each a substantially hydrocarbon radical, r and r represent each one atom of 1996 radical or a substantially hydrocarbon and r denotes an atom of 1996, or a radical hydrocarbon, the assembly of the r radicals r containing from 12 to 30 carbon atoms, n is an integer equal to 2 or 3, z may be a radical ch or a hydroxyl group, p can be equal to 0 or 1, with, when z is a hydroxyl group, p being equal to 1, m is equal to 1 and q is equal to 1, when z is a methylene radical and p1, m is equal to 2 and q can take the value 0 or 1; and, if p 0, the sum (mq) is the same a 2, 3 or 4). / p & & p & a recovery assisted the oil, in the form of a micellar systems consisting of aqueous solutions and of microemulsions.