Basf Se Corporation

The University of Texas System

Sophie Vogel

Christian Bittner

Christian E Spindler

Günter Oetter

Jack Tinsley

Gabriela Alvarez Jürgenson

Gabriela Alvarez-Juergenson

Marcus Guzmann

Gerhard Schnabel

Gerd Haderlein

Guenter Oetter

Richard Roger Evans

Marc Nolte

Paul Klingelhoefer

Veronika Wloka

Martin Bock

Petra Neumann

Kevin Huyghe

Gary A Pope

Upali Peter Weerasooriya

Arend Jouke Kingma

Jack F Tinsley

Oetter Günter

Gabriela Alvarez-Jürgenson

Gabriela Alvarez-Jüergenson

Veronica Wloka

Gabriela Alvarez Jurgenson

Gabriela Alvarez Juergenson

Alvarez Juergenson Gabriela

A surfactant and a surfactant formulation comprising at least one ionic surfactant of the general formula R&#x2014;O-(D)-(B)-(A)-XYMwhere Ris a linear or branched, saturated or unsaturated, aliphatic and/or aromatic hydrocarbon radical having 8 to 30 carbon atoms, A is ethyleneoxy, B is propyleneoxy, and D is butyleneoxy, l is from 0 to 99, m is from 0 to 99 and n is from 1 to 99, X is an alkyl or alkylene group having 0 to 10 carbon atoms, Mis a cation, and Yis selected from the group of sulfate groups, sulfonate groups, carboxylate groups and phosphate groups.

Process for extracting mineral oil using surfactants based on butylene oxide-containing alkyl alkoxylates

The present invention relates to a process for mineral oil extraction by means of Winsor type III microemulsion flooding, in which an aqueous surfactant formulation comprising at least three ionic surfactants which are different with regard to the alkyl moiety (R)(R)&#x2014;CH&#x2014;CH&#x2014; and are of the general formula (R)(R)&#x2014;CH&#x2014;CH&#x2014;O-(D)-(B)-(A)-XYa/bMis injected through injection boreholes into a mineral oil deposit, and crude oil is withdrawn from the deposit through production boreholes. The invention further relates to surfactant formulations of ionic surfactants of the general formula.

Process for producing mineral oil using surfactants based on a mixture of C32 guerbet-, C34 guerbet-, C36 guerbet-containing alkyl alkoxylates

Compositions and methods of synthesis of anionic surfactants by alkoxylation of a Guerbet alcohol (GA) having 12 to 36 carbon atoms using butylene oxide, and optionally propylene oxide and/or ethylene oxide followed by the incorporation of a terminal anionic group are described herein. The GA of the present invention is made by a facile and inexpensive method that involves high temperature base catalyzed dimerization of alcohols with 6 to 18 carbon atoms. The large hydrophobe ether surfactants of the present invention find uses in enhanced oil recovery (EOR) applications where it is used for solubilization and mobilization of oil and for environmental cleanup. Further, the hydrophobe alkoxylated GA without anionic terminal group can be used as an ultra-high molecular weight non-ionic surfactant.

Anionic polyalkoxy group comprising surfactants on basis of guerbet-alcohols, method of manufacture and use in enhanced oil recovery (EOR) applications

The present invention relates to a composition comprising a pesticide and an alkoxylate. Moreover, the invention relates to the alkoxylate, to a process for its preparation and to its use as adjuvant in pesticide-comprising spray mixtures. The invention furthermore relates to a method of controlling phytopathogenic fungi and/or undesired vegetation and/or undesired insect or mite attack and/or for regulating the growth of plants, wherein the composition is allowed to act on the respective pests, their environment or the plants to be protected from the respective pest, on the soil and/or on undesirable plants and/or the crop plants and/or their environment. Furthermore, the invention relates to seed comprising the composition.

Composition comprising a pesticide and an alkoxylate of iso-nonylamine

Process for producing mineral oil using surfactants based on a mixture of C32 Guerbet-, C34 Guerbet-, C36 Guerbet-containing alkyl alkoxylates

A process for mineral oil production, especially Winsor type III microemulsion flooding, in which an aqueous surfactant formulation which comprises at least one alkylpolyalkoxysulfate comprising propoxy groups, and at least one further surfactant differing therefrom is used, is forced through injection wells into a mineral oil deposit and crude oil is removed from the deposit through production wells. The alkylpolyalkoxysulfate comprising propoxy groups is prepared in this case by sulfating an alkoxylated alcohol, the alkoxylated alcohol being prepared by alkoxylating an alcohol using double metal cyanide catalysts or double hydroxide clays.

Process for tertiary mineral oil production using surfactant mixtures

The present invention relates to processes for tertiary mineral oil production with the aid of a surfactant mixture and to the use of a surfactant mixture for tertiary mineral oil production by means of Winsor type III microemulsion flooding, by injecting a surfactant mixture through at least one aqueous injection borehole into a mineral oil deposit, and withdrawing crude oil from the deposit through at least one production borehole, wherein the surfactant mixture, for the purpose of lowering the interfacial tension between oil and water to &#x3c;0.1 mN/m, comprises at least the following components: (a) one or more polycarboxylate(s) comprising at least 50 mol % of acrylic acid units and/or methacrylic acid units and/or maleic acid units and/or itaconic acid units or salts thereof, and (b) one or more anionic and/or nonionic surfactant(s).

Use of surfactant mixtures of polycarboxylates for microemulsion flooding

Composition comprising a pesticide and an alkoxylate of 2-propylheptylamine

The invention relates to a process for mineral oil extraction by means of Winsor Type III microemulsion flooding, in which an aqueous surfactant formulation comprising at least one ionic surfactant of the general formula R&#x2014;O-(D)-(B)-(A)-XYMis injected through injection boreholes into a mineral oil deposit, and crude oil is withdrawn from the deposit through production boreholes. The invention further relates to ionic surfactants of the general formula.

A process for mineral oil production by means of Winsor Type III microemulsion flooding and an aqueous surfactant formulation are disclosed. The aqueous surfactant formulation containing at least one ionic surfactant of the general formula R&#x2014;O&#x2014;(CHC(CH)HO)(CHCHO)&#x2014;XYMis injected through injection boreholes into a mineral oil deposit, and crude oil is withdrawn from the deposit through production boreholes.

[object Object]

A process for mineral oil production especially Winsor type III microemulsion flooding, in which an aqueous surfactant formulation which comprises at least one nonionic surfactant having 11 to 40 ethoxy units and a hydrophobic radical having 8 to 32 carbon atoms and at least one further surfactant differing therefrom is forced through injection wells into a mineral oil deposit and crude oil is removed from the deposit through production wells.

Process for mineral oil production using surfactant mixtures

A process for mineral oil production, especially Winsor type III microemulsion flooding, in which an aqueous surfactant formulation which comprises at least one nonionic surfactant having 8 to 30 ethoxy units, which has a polydispersity of from 1.01 to 1.12, and at least one further surfactant is forced through injection wells into a mineral oil deposit and crude oil is removed from the deposit through production wells.

Growing community of inventors

Mannheim, Germany

Sophie Vogel