DE2724442A1 - Mittel zur oelgewinnung und verfahren zu ihrer herstellung - Google Patents
Mittel zur oelgewinnung und verfahren zu ihrer herstellungInfo
- Publication number
- DE2724442A1 DE2724442A1 DE19772724442 DE2724442A DE2724442A1 DE 2724442 A1 DE2724442 A1 DE 2724442A1 DE 19772724442 DE19772724442 DE 19772724442 DE 2724442 A DE2724442 A DE 2724442A DE 2724442 A1 DE2724442 A1 DE 2724442A1
- Authority
- DE
- Germany
- Prior art keywords
- salt
- weight
- solution
- surfactant
- alkali metal
- 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.)
- Ceased
Links
- 238000000034 method Methods 0.000 title claims description 13
- 238000004519 manufacturing process Methods 0.000 title description 4
- 238000011084 recovery Methods 0.000 title 1
- 150000003839 salts Chemical class 0.000 claims description 44
- 230000015572 biosynthetic process Effects 0.000 claims description 17
- 238000002360 preparation method Methods 0.000 claims description 16
- 239000004094 surface-active agent Substances 0.000 claims description 16
- 125000004432 carbon atom Chemical group C* 0.000 claims description 15
- 239000003208 petroleum Substances 0.000 claims description 15
- 239000011734 sodium Substances 0.000 claims description 15
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims description 15
- 229910052783 alkali metal Inorganic materials 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 12
- -1 Alkali metal salt Chemical class 0.000 claims description 11
- 125000000217 alkyl group Chemical group 0.000 claims description 10
- 150000001875 compounds Chemical class 0.000 claims description 7
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 6
- 150000001340 alkali metals Chemical class 0.000 claims description 6
- 150000001412 amines Chemical class 0.000 claims description 6
- 229920001515 polyalkylene glycol Polymers 0.000 claims description 6
- 150000005215 alkyl ethers Chemical class 0.000 claims description 5
- GZMAAYIALGURDQ-UHFFFAOYSA-N 2-(2-hexoxyethoxy)ethanol Chemical compound CCCCCCOCCOCCO GZMAAYIALGURDQ-UHFFFAOYSA-N 0.000 claims description 4
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical group C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 3
- 229910052708 sodium Inorganic materials 0.000 claims description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 17
- 239000000243 solution Substances 0.000 description 16
- 238000005755 formation reaction Methods 0.000 description 15
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 14
- 239000003921 oil Substances 0.000 description 11
- 229910001424 calcium ion Inorganic materials 0.000 description 10
- 125000001273 sulfonato group Chemical class [O-]S(*)(=O)=O 0.000 description 10
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 9
- 150000001298 alcohols Chemical class 0.000 description 9
- 239000011780 sodium chloride Substances 0.000 description 9
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 6
- 239000007864 aqueous solution Substances 0.000 description 6
- 125000002947 alkylene group Chemical group 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 4
- 101100136648 Mus musculus Pign gene Proteins 0.000 description 4
- 239000011149 active material Substances 0.000 description 4
- ZSIAUFGUXNUGDI-UHFFFAOYSA-N hexan-1-ol Chemical compound CCCCCCO ZSIAUFGUXNUGDI-UHFFFAOYSA-N 0.000 description 4
- 239000012266 salt solution Substances 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- FSSPGSAQUIYDCN-UHFFFAOYSA-N 1,3-Propane sultone Chemical compound O=S1(=O)CCCO1 FSSPGSAQUIYDCN-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000010779 crude oil Substances 0.000 description 3
- 239000012043 crude product Substances 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical group OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 150000003138 primary alcohols Chemical class 0.000 description 3
- 235000017557 sodium bicarbonate Nutrition 0.000 description 3
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- WQDUMFSSJAZKTM-UHFFFAOYSA-N Sodium methoxide Chemical compound [Na+].[O-]C WQDUMFSSJAZKTM-UHFFFAOYSA-N 0.000 description 2
- 229910001508 alkali metal halide Inorganic materials 0.000 description 2
- 150000008045 alkali metal halides Chemical class 0.000 description 2
- 229910001420 alkaline earth metal ion Inorganic materials 0.000 description 2
- WKVSEJXEIVEFJT-UHFFFAOYSA-N bromo ethanesulfonate Chemical compound CCS(=O)(=O)OBr WKVSEJXEIVEFJT-UHFFFAOYSA-N 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- RSJKGSCJYJTIGS-UHFFFAOYSA-N undecane Chemical compound CCCCCCCCCCC RSJKGSCJYJTIGS-UHFFFAOYSA-N 0.000 description 2
- DNIAPMSPPWPWGF-GSVOUGTGSA-N (R)-(-)-Propylene glycol Chemical compound C[C@@H](O)CO DNIAPMSPPWPWGF-GSVOUGTGSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- 239000004606 Fillers/Extenders Substances 0.000 description 1
- 238000006424 Flood reaction Methods 0.000 description 1
- 240000008415 Lactuca sativa Species 0.000 description 1
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 1
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 1
- 125000003158 alcohol group Chemical group 0.000 description 1
- 230000001476 alcoholic effect Effects 0.000 description 1
- 229910001413 alkali metal ion Inorganic materials 0.000 description 1
- 229910000287 alkaline earth metal oxide Inorganic materials 0.000 description 1
- 150000001346 alkyl aryl ethers Chemical class 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000012736 aqueous medium Substances 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- 210000000941 bile Anatomy 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000011033 desalting Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- CCIVGXIOQKPBKL-UHFFFAOYSA-N ethanesulfonic acid Chemical class CCS(O)(=O)=O CCIVGXIOQKPBKL-UHFFFAOYSA-N 0.000 description 1
- 238000007046 ethoxylation reaction Methods 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 125000000816 ethylene group Chemical group [H]C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 150000004676 glycans Chemical class 0.000 description 1
- 125000003827 glycol group Chemical group 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000002198 insoluble material Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 229910001425 magnesium ion Inorganic materials 0.000 description 1
- 239000002609 medium Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- PSZYNBSKGUBXEH-UHFFFAOYSA-N naphthalene-1-sulfonic acid Chemical class C1=CC=C2C(S(=O)(=O)O)=CC=CC2=C1 PSZYNBSKGUBXEH-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 125000005429 oxyalkyl group Chemical group 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 229920001281 polyalkylene Polymers 0.000 description 1
- 229920001282 polysaccharide Polymers 0.000 description 1
- 239000005017 polysaccharide Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 235000012045 salad Nutrition 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 239000013026 undiluted sample Substances 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C309/00—Sulfonic acids; Halides, esters, or anhydrides thereof
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F1/00—Compounds containing elements of Groups 1 or 11 of the Periodic Table
- C07F1/005—Compounds containing elements of Groups 1 or 11 of the Periodic Table without C-Metal linkages
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/58—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids
- C09K8/584—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids characterised by the use of specific surfactants
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Lubricants (AREA)
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US69146776A | 1976-06-01 | 1976-06-01 | |
| US72862776A | 1976-10-01 | 1976-10-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2724442A1 true DE2724442A1 (de) | 1977-12-08 |
Family
ID=27104789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19772724442 Ceased DE2724442A1 (de) | 1976-06-01 | 1977-05-31 | Mittel zur oelgewinnung und verfahren zu ihrer herstellung |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS52147583A (es) |
| AR (1) | AR214077A1 (es) |
| CA (1) | CA1075453A (es) |
| DE (1) | DE2724442A1 (es) |
| FR (1) | FR2353527A1 (es) |
| GB (1) | GB1560346A (es) |
| MX (1) | MX146299A (es) |
| NL (1) | NL7705836A (es) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4612142A (en) * | 1984-09-13 | 1986-09-16 | Henkel Kommanditgesellschaft Auf Aktien | Ether sulfonates as low-foam wetting agents |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0064384B1 (en) * | 1981-04-30 | 1986-07-23 | Mobil Oil Corporation | Alkoxypolyethoxypropane sulfonates, process for their preparation and method for their use in enhanced oil recovery |
| US4468335A (en) * | 1981-04-30 | 1984-08-28 | Mobil Oil Corporation | Branched alkylpolyethoxypropane sulfonates and their use in enhanced oil recovery |
| DE3622439A1 (de) * | 1986-07-04 | 1988-01-07 | Henkel Kgaa | Haarbehandlungsmittel |
| EP0264867B1 (de) * | 1986-10-24 | 1990-12-27 | Hoechst Aktiengesellschaft | Styrylaryloxy-ethersulfonate, Verfahren zu deren Herstellung und deren Verwendung bei der Erdölförderung |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5441761B2 (es) * | 1972-06-15 | 1979-12-10 |
-
1977
- 1977-04-28 CA CA277,256A patent/CA1075453A/en not_active Expired
- 1977-05-26 NL NL7705836A patent/NL7705836A/xx not_active Application Discontinuation
- 1977-05-31 JP JP6286877A patent/JPS52147583A/ja active Granted
- 1977-05-31 GB GB23040/77A patent/GB1560346A/en not_active Expired
- 1977-05-31 DE DE19772724442 patent/DE2724442A1/de not_active Ceased
- 1977-06-01 MX MX169285A patent/MX146299A/es unknown
- 1977-06-01 AR AR267906A patent/AR214077A1/es active
- 1977-06-01 FR FR7716705A patent/FR2353527A1/fr active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4612142A (en) * | 1984-09-13 | 1986-09-16 | Henkel Kommanditgesellschaft Auf Aktien | Ether sulfonates as low-foam wetting agents |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2353527A1 (fr) | 1977-12-30 |
| GB1560346A (en) | 1980-02-06 |
| NL7705836A (nl) | 1977-12-05 |
| CA1075453A (en) | 1980-04-15 |
| MX146299A (es) | 1982-06-03 |
| JPS566477B2 (es) | 1981-02-12 |
| AR214077A1 (es) | 1979-04-30 |
| JPS52147583A (en) | 1977-12-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE3742963A1 (de) | Verfahren zur herstellung von tensiden aus lignin | |
| DE2854594A1 (de) | Verfahren zur gewinnung von erdoel aus untertaegigen lagerstaetten | |
| DE2953276T1 (de) | Aqueous micro emulsions of organic substances | |
| DE2534851A1 (de) | Verfahren zum komplexieren und loeslichmachen von alkalimetallsalzen mit polyaethylenglykoldiaethern und deren verwendung | |
| DE2748722A1 (de) | Verfahren zur herstellung eines aethersulfonats | |
| DE2724490A1 (de) | Alkylglycerylaethersulfonatsalze, verfahren zu ihrer herstellung und ihre verwendung | |
| DE2724442A1 (de) | Mittel zur oelgewinnung und verfahren zu ihrer herstellung | |
| EP0149173B1 (de) | Tributylphenoletherglycidylsulfonate, Verfahren zu deren Herstellung und deren Verwendung | |
| DE2109552C3 (de) | Ölaußen mizeUare Dispersion für die Sekundärgewinnung von Erdöl | |
| EP0311961A2 (de) | Verfahren zur Herstellung von Ether- und Polyglykolethersulfonaten und nach diesem Verfahren hergestellte Produkte | |
| DE3542063A1 (de) | Verfahren zur verstaerkung der oelgewinnung aus einer oelfuehrenden formation unter einsatz von tensiden | |
| DE3022336A1 (de) | Verfahren zur gewinnung von oel aus stark salzhaltigen medien durch verdraengung mit lyotropen fluessigen kristallen | |
| EP0332098B1 (de) | Wässrige Tensidmischungen und deren Verwendung bei der Erdölförderung | |
| EP0167873B1 (de) | Tensidmischung und deren Verwendung zur tertiären Ölförderung | |
| EP0302404B1 (de) | Wässrige Tensideinstellungen und deren Verwendung bei der Erdölförderung | |
| DE3819637A1 (de) | Verfahren zur kohlenwasserstoffgewinnung aus einer untertaegigen kohlenwasserstoff-lagerstaette | |
| EP0103696B1 (de) | Wässrige Tensidkonzentrate und Verfahren zur Verbesserung des Fliessverhaltens schwerbeweglicher wässriger Tensidkonzentrate | |
| DE1619040A1 (de) | Netzmittel fuer alkalische Baeder | |
| DE812074C (de) | Verfahren zur Herstellung von Sulfonsaeureestern | |
| DE4003028A1 (de) | Verwendung ausgewaehlter emulgatoren auf etherbasis fuer oelbasierte invert-emulsionen | |
| EP2782666A1 (de) | Derivate von tris(2-hydroxyphenyl)methanen, deren herstellung und verwendung für die erdölförderung | |
| EP0353469A1 (de) | Wässrige Tensideinstellungen und deren Verwendung zusammen mit einem Polymer bei der Erdölförderung in hochsalinen Lagerstätten | |
| CH636267A5 (en) | Clear stable aqueous or aqueous/alcoholic solution of fat-soluble perfume oils | |
| DE763559C (de) | Verfahren zur Herstellung von kapillaraktiven Kondensationsprodukten | |
| DE1942265A1 (de) | Verfahren zur Herstellung von polyfluorierten Aminoalkoholen |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OD | Request for examination | ||
| 8131 | Rejection |