摘要:
A process for isomerizing a saturated hydrocarbon, by performing the isomerization in the presence of a superacidic ionic liquid comprising an organic cation and an inorganic anion, where the anion is a superacidic aluminum trichloride-Lewis base adduct, and of an olefin.
摘要:
The invention relates to a process for mineral oil production by means of Winsor Type III microemulsion flooding, in which an aqueous surfactant formulation comprising at least one ionic surfactant of the general formula R1—O—(CH2C(CH3)HO)m(CH2CH2O)n—XY−M+ is injected through injection boreholes into a mineral oil deposit, and crude oil is withdrawn from the deposit through production boreholes.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.
摘要:
The invention relates to a process for recovering acids from product streams of organic syntheses, which comprises the steps a) neutralization of the acid with a base, b) removal of the base by means of adsorption, c) recovery of the acid.
摘要:
The invention provides a process for preparing diphenylmethanediamine, comprising the steps of a) reacting aniline with formaldehyde in the presence of an acid, b) neutralizing the acid with ammonia, c) separating the reaction mixture from step b) into an aqueous phase and an organic phase, d) treating the aqueous phase obtained in step c) with an oxide or hydroxide of an alkaline earth metal, e) separating off the ammonia obtained in step d).
摘要:
The invention relates to a process for recovering acids from product streams of organic syntheses, which comprises the steps a) neutralization of the acid with a base, b) removal of the base by means of adsorption, c) recovery of the acid.
摘要:
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 (R1)(R2)—CH—CH2— and are of the general formula (R1)(R2)—CH—CH2—O—(D)n—(B)m—(A)l—XYa− a/b Mb+ is injected through injection boreholes into a mineral oil deposit, and crude oil is withdrawn from the deposit through production boreholes.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.
摘要翻译:本发明涉及一种通过Winsor III型微乳液淹水进行矿物油提取的方法,其中包含至少三种离子表面活性剂的水性表面活性剂制剂,其对于烷基部分(R 1)(R 2)-CH- CH 2 - 并且具有通式(R1)(R2)-CH-CH2-O-(D)n-(B)m-(A)1-XYa- a / b Mb +通过注射孔注入矿物 石油储藏和原油通过生产井眼从沉积物中取出。 本发明还涉及通式为离子表面活性剂的表面活性剂制剂。
摘要:
Process for the preparation of cyclic carbonates by reacting a polyhydric alcohol with a dialkyl carbonate in the presence of a heterogeneous catalyst, wherein the heterogeneous catalyst is a basic mixed oxide or a basic oxide applied to a support.
摘要:
The invention relates to a process for mineral oil production by means of Winsor Type III microemulsion flooding, in which an aqueous surfactant formulation comprising at least one ionic surfactant of the general formula R1—O—(CH2C(CH3)HO)m(CH2CH2O)n—XY−M+ is 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.
摘要:
The present invention relates to a process for producing a layer comprising at least one semiconductive metal oxide on a substrate, comprising at least the steps of: (A) preparing a solution comprising at least one precursor compound of the at least one metal oxide selected from the group consisting of carboxylates of mono-, di- or polycarboxylic acids having at least three carbon atoms, or derivatives of mono-, di- or polycarboxylic acids, alkoxides, hydroxides, semicarbazides, carbamates, hydroxamates, isocyanates, amidines, amidrazones, urea derivatives, hydroxylamines, oximes, urethanes, ammonia, amines, phosphines, ammonium compounds, azides of the corresponding metal and mixtures thereof, in at least one solvent, (B) applying the solution from step (A) to the substrate and (C) thermally treating the substrate from step (B) at a temperature of 20 to 200° C., in order to convert the at least one precursor compound to at least one semiconductive metal oxide, where, if electrically neutral [(OH)x(NH3)yZn]z where x, y and z are each independently 0.01 to 10 is used as the precursor compound in step (A), it is obtained by reacting zinc oxide or zinc hydroxide with ammonia, to a substrate which has been coated with at least one semiconductive metal oxide and is obtainable by this process, to the use of this substrate in electronic components, and to a process for preparing electrically neutral [(OH)x(NH3)yZn]z where x, y and z are each independently 0.01 to 10, by reacting zinc oxide and/or zinc hydroxide with ammonia.
摘要:
The invention relates to a process for preparing polyester alcohols by catalytic reaction of at least one at least polyfunctional carboxylic acid with at least one polyfunctional alcohol and/or by catalytic ring-opening polymerization of cyclic esters in the presence of catalysts, wherein a zeolite is used as catalyst.