CA1164889A - Alkylated biphenyl disulfonates - Google Patents
Alkylated biphenyl disulfonatesInfo
- Publication number
- CA1164889A CA1164889A CA000368371A CA368371A CA1164889A CA 1164889 A CA1164889 A CA 1164889A CA 000368371 A CA000368371 A CA 000368371A CA 368371 A CA368371 A CA 368371A CA 1164889 A CA1164889 A CA 1164889A
- Authority
- CA
- Canada
- Prior art keywords
- composition
- alkylated biphenyl
- carbon atoms
- epsilon
- alkylated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Abstract
ABSTRACT
Alkylated biphenyl disulfonated of the formula wherein R is an alkyl radical of at least 6 carbon atoms and each R can be the same or different.
M? is hydrogen, alkali metal ion, alkaline earth metal ion or ammonium ion radical and each M? can be the same or different; and x and y are individually integers of 0-2 with the proviso that 1(x+y)?1.
Alkylated biphenyl disulfonated of the formula wherein R is an alkyl radical of at least 6 carbon atoms and each R can be the same or different.
M? is hydrogen, alkali metal ion, alkaline earth metal ion or ammonium ion radical and each M? can be the same or different; and x and y are individually integers of 0-2 with the proviso that 1(x+y)?1.
Claims (13)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. An alkylated biphenyl disulfonate surfac-tant composition comprising a biphenyl disulfonate of the formula wherein R is an alkyl radical of at least 6 carbon atoms and each R can be the same or different;
M? is hydrogen, alkali metal ion, alkaline earth metal ion or ammonium ion radical and each M? can be the same or different;
and x and y are individually integers of 0-2 with the proviso that .epsilon.(x+y) ? 1, wherein at least 90 weight percent of the alkylated biphenyl radicals in said composition are disulfonated and between 0 and 10 weight percent of the alkylated biphenyl radicals are monosulfonated.
27,055-F 20
M? is hydrogen, alkali metal ion, alkaline earth metal ion or ammonium ion radical and each M? can be the same or different;
and x and y are individually integers of 0-2 with the proviso that .epsilon.(x+y) ? 1, wherein at least 90 weight percent of the alkylated biphenyl radicals in said composition are disulfonated and between 0 and 10 weight percent of the alkylated biphenyl radicals are monosulfonated.
27,055-F 20
2. The composition of Claim 1 wherein R
is a linear or branched alkyl radical of between 8 and 18 carbon atoms.
is a linear or branched alkyl radical of between 8 and 18 carbon atoms.
3. The composition of Claim 2 where M? is an alkali metal ion.
4. The composition of Claim 3 where .epsilon.(x+y) is 1 or 2.
5. The composition of Claim 1 where R is a linear or branched alkyl radical of between 10 and 18 carbon atoms, M? is an ion of sodium or potassium, and .epsilon.(X+y) is 1 or 2.
6. An aqueous anionic surfactant system having a relatively high tolerance to multivalent cations, the system comprising:
(a) a substantially homogenous aqueous liquid system containing at least one dissolved or dispersed petroleum sulfonate surfactant; and (b) at least one said alkylated biphenyl disulfonate surfactant composition of Claim 1.
(a) a substantially homogenous aqueous liquid system containing at least one dissolved or dispersed petroleum sulfonate surfactant; and (b) at least one said alkylated biphenyl disulfonate surfactant composition of Claim 1.
7. A process for displacing oil from a porous, subterranean rock reservior, the process com-prising injecting into the reservoir an active aqueous anionic surfactant system containing a sufficient amount of an alkylated biphenyl disulfonate surfactant composition to improve the system's multivalent cation tolerance without significantly reducing the interfacial 27,055-F 21 tension-lowering activity of the system, wherein said surfactant composition is the composition of Claim 1.
8. A method of preparing an alkylated biphenyl disulfonate composition comprising a biphenyl disulfonate of the formula wherein R is an alkyl radical of at least 6 carbon atoms and each R can be the same or different;
M? is hydrogen, alkali metal ion, alkaline earth metal ion or ammonium ion radical and each M? can be the same or different;
and x and y are individually integers of 0-2 with the proviso that .epsilon.(x+y) ? 1 wherein at least 90 weight percent of the alkylated biphenyl radicals in said composition are disulfonated and between 0 and 10 weight percent of the alkylated biphenyl radicals are monosulfonated, comprising the steps of:
contacting an alkylated biphenyl of the formula 27,055-F
wherein R, x and y are as herein defined with sulfur trioxide dissolved in refluxing sulfur dioxide, the sulfur trioxide and alkylated biphenyl contacted at a sulfur trioxide:alkylated biphenyl mole ratio of at least about 2; and, optionally, contacting the result-ing alkylated biphenyl disulfonic acid with a neutral-izing solution comprising ions or ion radicals of M?
as defined in Claim 1.
M? is hydrogen, alkali metal ion, alkaline earth metal ion or ammonium ion radical and each M? can be the same or different;
and x and y are individually integers of 0-2 with the proviso that .epsilon.(x+y) ? 1 wherein at least 90 weight percent of the alkylated biphenyl radicals in said composition are disulfonated and between 0 and 10 weight percent of the alkylated biphenyl radicals are monosulfonated, comprising the steps of:
contacting an alkylated biphenyl of the formula 27,055-F
wherein R, x and y are as herein defined with sulfur trioxide dissolved in refluxing sulfur dioxide, the sulfur trioxide and alkylated biphenyl contacted at a sulfur trioxide:alkylated biphenyl mole ratio of at least about 2; and, optionally, contacting the result-ing alkylated biphenyl disulfonic acid with a neutral-izing solution comprising ions or ion radicals of M?
as defined in Claim 1.
9. The method of Claim 8 where R is a linear or branched alkyl radical of 8 to 18 carbon atoms.
10. The method of Claim 9 where M? is an alkali metal ion.
11. The method of Claim 10 where .epsilon.(x+y) is 1 or 2.
12. The method of Claim 8 where R is a linear or branched alkyl radical of 10 to 18 carbon atoms, M? is an ion or sodium or potassium and .epsilon.(x+y) is 1 or 2.
13. A surfactant composition comprising at least one alkylated biphenyl disulfonate of Claim 1.
27,055-F 23
27,055-F 23
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA000368371A CA1164889A (en) | 1981-01-13 | 1981-01-13 | Alkylated biphenyl disulfonates |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA000368371A CA1164889A (en) | 1981-01-13 | 1981-01-13 | Alkylated biphenyl disulfonates |
Publications (1)
Publication Number | Publication Date |
---|---|
CA1164889A true CA1164889A (en) | 1984-04-03 |
Family
ID=4118901
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA000368371A Expired CA1164889A (en) | 1981-01-13 | 1981-01-13 | Alkylated biphenyl disulfonates |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA1164889A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4699214A (en) * | 1986-09-30 | 1987-10-13 | Sun Refining And Marketing Company | Salt-tolerant alkyl aryl sulfonate compositions for use in enhanced oil recovery processes |
US4957646A (en) * | 1987-08-26 | 1990-09-18 | Shell Oil Company | Steam foam surfactants enriched in alpha olefin disulfonates for enhanced oil recovery |
US4959490A (en) * | 1988-11-14 | 1990-09-25 | Exxon Production Research Company | Process for manufacturing disulfonate surfactants |
-
1981
- 1981-01-13 CA CA000368371A patent/CA1164889A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4699214A (en) * | 1986-09-30 | 1987-10-13 | Sun Refining And Marketing Company | Salt-tolerant alkyl aryl sulfonate compositions for use in enhanced oil recovery processes |
US4957646A (en) * | 1987-08-26 | 1990-09-18 | Shell Oil Company | Steam foam surfactants enriched in alpha olefin disulfonates for enhanced oil recovery |
US4959490A (en) * | 1988-11-14 | 1990-09-25 | Exxon Production Research Company | Process for manufacturing disulfonate surfactants |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MKEX | Expiry |