Ether phosphonate surfactants having branched hydrophobic...

Details Ether phosphonate surfactants having branched hydrophobic... Ether phosphonate surfactants having branched hydrophobic...

C - Chemistry, Metallurgy

07

F

31/28, 260/458.2

C07F 9/40 (2006.01) C09K 8/584 (2006.01) E21B 43/22 (2006.01)

Patent

CA 1315285

A B S T R A C T Novel ether phosphonate surfactants having a branched hydrophobic tail are used in a process for enhanced oil recovery from a subterranean oil reservoir. They combine a high oil-mobilizing capacity with a good tolerance against divalent ions. The ether phosphonate surfactants are summarized by the formula Image where R1 and R2, being the same or different, are hydrocarbons containing 3-18 carbon atoms each and optionally containing functional groups such as ether and hydroxyl; X is an alkyleneoxy group derived from an alkylene oxide having 2-3 carbon atoms; Y is an alkylene group having 1-4 carbon atoms; R3 is an alkyl group having 1-4 carbon atoms; M+ is a monovalent cation; n1 and n2, being the same or different, are a number from 0 to 4; m1 and m2, being the same or different, are 0 or 1, both m1 and m2 not being 0 at the same time and ml being 1 when n1 is a number from 1 to 4 and m2 always being 1 when n2 is a number from 1 to 4; and p is a number from 0 to 10.

556294

Affiliated with

Also associated with

Rating

Ether phosphonate surfactants having branched hydrophobic... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Ether phosphonate surfactants having branched hydrophobic..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ether phosphonate surfactants having branched hydrophobic... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1287502