US2016304807A1PendingUtilityA1
Low interfacial tension surfactants for petroleum applications
Est. expiryDec 10, 2029(~3.4 yrs left)· nominal 20-yr term from priority
C07C 235/74C09K 8/524C07C 235/76C07C 217/42C11D 1/72C09K 8/584C07C 69/73C09K 8/604C07C 69/593C10G 31/08C10G 21/16C10G 2300/206C02F 1/00C10G 1/04C10G 1/047
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Claims
Abstract
The invention relates to a class of novel surfactants that have utility in the recovery and/or extraction of oil.
Claims
exact text as granted — not AI-modified1 . A compound having the Formula (I):
wherein A is an alkyl, alkenyl, alkadienyl, alkynyl, cycloalkyl, or cycloalkenyl, each optionally substituted;
p is 1 or 2;
each m and n are independently 0, 1, 2, 3, 4, or 5;
each of G 1 and G 2 are independently absent, O, S, NR 2 , C(O)O, OC(O), C(O), C(O)NR 2 , or NR 2 C(O), wherein at least one of G 1 and G 2 is present;
each R 2 is independently H or a lower alkyl;
G 3 is absent, (CH 2 ) q or G 1 ;
each q is independently 1, 2, 3, 4 or 5;
R is a hydrophilic group; and
R 1 is a saturated or unsaturated hydrophobic aliphatic group.
2 . The compound of claim 1 , wherein G 1 is selected from the group consisting of O, S, NR 2 , C(O)O, OC(O), C(O), C(O)NR 2 , and NR 2 C(O).
3 . The compound of claim 1 , wherein A is an alkyl or cycloalkyl, each optionally substituted.
4 . The compound claim 3 , wherein A is an optionally substituted C 3 -C 8 alkyl, optionally substituted cyclopentyl or optionally substituted cyclohexyl.
5 . (canceled)
6 . (canceled)
7 . The compound of claim 1 , wherein m is 1 or 2.
8 . The compound of claim 1 , wherein n is 0 or 1.
9 . (canceled)
10 . The compound of claim 1 , wherein G 1 is selected from the group consisting of OC(O), C(O)O, C(O), C(O)NR 2 and NR 2 CO.
11 . (canceled)
12 . The compound of claim 1 , wherein R is C(O)OH.
13 . The compound of claim 1 , wherein R 1 is selected from the group consisting of C 5 -C 20 alkyl, C 5 -C 20 alkenyl, and C 5 -C 20 alkadienyl.
14 . The compound of claim 1 having the Formula (Ia):
wherein t is 0 or 1; and
G 4 is O or NH.
15 . A compound of Formula (II):
wherein D is an aliphatic polymer;
p is 1 or 2;
each m and n are independently 0, 1, 2, 3, 4, or 5;
each of G 1 and G 2 are independently absent, O, S, NR 2 , C(O)O, OC(O), CO, C(O)NR 2 , or NR 2 C(O);
each R 2 is independently H or a lower alkyl;
G 3 is independently absent, (CH 2 ) q or G 1 ;
each q is 1, 2, 3, 4 or 5;
R is a hydrophilic group; and
R 1 is a saturated or unsaturated hydrophobic aliphatic group.
16 . The compound of claim 15 , wherein D is selected from the group consisting of polyethylene glycol, polypropylene glycol, polyethylene glycol methyl ether, polyetheramine and ethylene oxide/propylene oxide block copolymer.
17 . The compound of claim 15 , wherein p is 1.
18 . The compound of claim 15 , wherein p is 2.
19 . The compound of claim 15 , wherein each G 1 is independently selected from the group consisting of OC(O), C(O)O, C(O), C(O)NR 2 and NR 2 C(O).
20 . The compound of claim 15 , wherein G 2 is absent.
21 . The compound of claim 15 , wherein R is C(O)OH.
22 . The compound of claim 15 , wherein R 1 is selected from the group consisting of C 5 -C 20 alkyl, C 5 -C 20 alkenyl, and C 5 -C 20 alkadienyl.
23 . The compound of claim 15 , having the Formula (IIa):
wherein t is 0 or 1; and
G 4 is O or NH.
24 - 33 . (canceled)
34 . A method for extracting oil from an oil mixture comprising:
(a) adding a compound of claim 1 , to an oil mixture, and (b) collecting the oil.
35 . A method for extracting oil from an oil mixture comprising:
(a) adding a compound of claim 15 , to an oil mixture, and (b) collecting the oil.
36 . The compound of claim 23 , wherein D is polyethylene glycol.
37 . The compound of claim 23 , wherein R 1 is selected from the group consisting of C 5 -C 22 alkyl, C 5 -C 22 alkenyl, and C 5 -C 22 alkadienyl.
38 . (canceled)
39 . The compound of claim 38 , wherein R 1 is a C 5 -C 22 alkenyl.
40 . The compound of claim 39 having the Formula (IIb):
41 . The compound of claim 40 , wherein the compound is:
42 . A surfactant composition comprising a compound of claim 23 in an aqueous solution having a pH greater than 8.
43 . The surfactant composition comprising a compound of claim 40 in an aqueous solution having a pH greater than 8.
44 . The surfactant composition of claim 42 , wherein the solution comprises sodium hydroxide.
45 . The surfactant composition of claim 42 , wherein the solution comprises sodium hydroxide.Cited by (0)
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