摘要:
The present invention relates to an eggshell catalyst comprising an active metal selected from the group consisting of ruthenium, rhodium, palladium, platinum and mixtures thereof, applied to a support material comprising silicon dioxide, wherein the pore volume of the support material is 0.6 to 1.0 ml/g, determined by Hg porosimetry, the BET surface area is 280 to 500 m2/g, and at least 90% of the pores present have a diameter of 6 to 12 nm, to a process for preparing this eggshell catalyst, to a process for hydrogenating an organic compound which comprises at least one hydrogenatable group using the eggshell catalyst, and to the use of the eggshell catalyst for hydrogenating an organic compound.
摘要翻译:本发明涉及包含选自钌,铑,钯,铂及其混合物的活性金属的蛋壳催化剂,其应用于包含二氧化硅的载体材料,其中载体材料的孔体积为0.6至1.0 ml / g,通过Hg孔隙率法测定,BET表面积为280-500m2 / g,并且至少90%的孔存在的直径为6至12nm,制备该蛋壳催化剂的方法为 使用蛋壳催化剂氢化含有至少一个可氢化基团的有机化合物的方法,以及使用蛋壳催化剂氢化有机化合物。
摘要:
The present invention relates to an eggshell catalyst comprising an active metal selected from the group consisting of ruthenium, rhodium, palladium, platinum and mixtures thereof, applied to a support material comprising silicon dioxide, wherein the pore volume of the support material is 0.6 to 1.0 ml/g, determined by Hg porosimetry, the BET surface area is 280 to 500 m2/g, and at least 90% of the pores present have a diameter of 6 to 12 nm, to a process for preparing this eggshell catalyst, to a process for hydrogenating an organic compound which comprises at least one hydrogenatable group using the eggshell catalyst, and to the use of the eggshell catalyst for hydrogenating an organic compound.
摘要翻译:本发明涉及包含选自钌,铑,钯,铂及其混合物的活性金属的蛋壳催化剂,其应用于包含二氧化硅的载体材料,其中载体材料的孔体积为0.6至1.0 ml / g,通过Hg孔隙率法测定,BET表面积为280-500m2 / g,并且至少90%的孔存在的直径为6至12nm,制备该蛋壳催化剂的方法为 使用蛋壳催化剂氢化含有至少一个可氢化基团的有机化合物的方法,以及使用蛋壳催化剂氢化有机化合物。
摘要:
The present invention relates to a catalyst comprising 4% by weight of ruthenium (Ru) or more and a support material comprising silicon dioxide, wherein the nitrogen content of the catalyst after the last drying or calcination is in the range from 1 to 3% by weight, and also catalyst precursors thereof. The present patent application further relates to a process for producing an Ru-comprising catalyst, which comprises the steps impregnation, drying, calcination and reduction. In addition, the present patent application relates to a process for hydrogenating organic substances in the presence of catalysts of the invention or catalysts produced according to the invention, and also a process for producing downstream products from cycloaliphatic amines prepared according to the invention.
摘要:
The present invention relates to a process for preparing 4-isopropylcyclohexylmethanol (IPCHM) from para-cymene. The process for preparing 4-isopropylcyclohexylmethanol (IPCHM) comprises an electrochemical process for preparing a mixture of 4-isopropylbenzaldehyde dimethyl acetal and 4-(1-alkoxy-1-methylethyl)benzaldehyde dimethyl acetal, and intermediates passed through in the process, a hydrolysis step to form the corresponding benzaldehydes and a hydrogenation of this mixture to form 4-isopropylcyclohexylmethanol (IPCHM).
摘要:
The present invention relates to a process for preparing 4-isopropylcyclohexylmethanol (IPCHM) from para-cymene. The process for preparing 4-isopropylcyclohexylmethanol (IPCHM) comprises an electrochemical process for preparing a mixture of 4-isopropylbenzaldehyde dimethyl acetal and 4-(1-alkoxy-1-methylethyl)benzaldehyde dimethyl acetal, and intermediates passed through in the process, a hydrolysis step to form the corresponding benzaldehydes and a hydrogenation of this mixture to form 4-isopropylcyclohexylmethanol (IPCHM).
摘要:
The present invention relates to a process for preparing 4-cyclohexyl-2-methyl-2-butanol. The process comprises the following steps: a) reaction of styrene with isopropanol at elevated temperature to obtain 4-phenyl-2-methyl-2-butanol, and b) heterogeneously catalyzed hydrogenation of 4-phenyl-2-methyl-2-butanol over a catalyst suitable for ring hydrogenation of aromatics.
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 one ionic surfactant of the general formula (R1)(R2)—CH—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 ionic surfactants of the general formula, to surfactant formulations, and to a process for preparation thereof.
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,其中含有至少一种通式(R1)(R2)-CH-O-(D)的离子表面活性剂的水性表面活性剂制剂, 通过注射钻孔将n(B)m-(A)l-XYa- a / b Mb +注入矿物油沉积物中,并通过生产钻孔从沉积物中取出原油。 本发明还涉及通式表示的离子表面活性剂,表面活性剂配制剂及其制备方法。
摘要:
The present invention relates to a process for preparing 4-cyclohexyl-2-methyl-2-butanol. The process comprises the following steps: a) reaction of styrene with isopropanol at elevated temperature to obtain 4-phenyl-2-methyl-2-butanol, and b) heterogeneously catalyzed hydrogenation of 4-phenyl-2-methyl-2-butanol over a catalyst suitable for ring hydrogenation of aromatics.
摘要:
To provide for more reliable determination of resistance of sample surfaces to light and weather influences, test apparatus is equipped with a radiation-measuring device. A portion of radiation used for testing is guided to the measuring device, by quartz guides, spectrally dispersed, and measured as to intensity and/or dosage in one or several pre-selected spectral regions. Tests may use natural or artificial radiation, and a measuring device may be stationary or movable relative to a radiation source.