摘要:
Process for the catalytic hydrogenation of methylolalkanals of the general formula where R1 and R2 are each, independently of one another, a further methylol group or an alkyl group having from 1 to 22 carbon atoms or an aryl or aralkyl group having from 6 to 33 carbon atoms, in the liquid phase by means of hydrogen over a hydrogenation catalyst, wherein hydrogen is used in a molar ratio to methylolalkanal of greater than 1.
摘要:
Process for the catalytic hydrogenation of methylolalkanals of the general formula where R1 and R2 are each, independently of one another, a further methylol group or an alkyl group having from 1 to 22 carbon atoms or an aryl or aralkyl group having from 6 to 33 carbon atoms, in the liquid phase by means of hydrogen over a hydrogenation catalyst, wherein hydrogen is used in a molar ratio to methylolalkanal of greater than 1.
摘要:
A process for catalytically hydrogenating methylolalkanals of the general formula in which R1 and R2 are each independently a further methylol group or an alkyl group having from 1 to 22 carbon atoms or an aryl or aralkyl group having from 6 to 33 carbon atoms, in the liquid phase over a hydrogenation catalyst, which comprises setting a pH of from 7.0 to 9.0 in the hydrogenation effluent by adding at least one tertiary amine, an inorganic base or an inorganic or organic acid to the hydrogenation feed.
摘要:
Process for the continuous preparation of an amine by reaction of a primary or secondary alcohol, aldehyde and/or ketone with hydrogen and a nitrogen compound selected from the group consisting of ammonia, primary and secondary amines at a temperature in the range from 60 to 300° C. in the presence of a catalyst comprising copper oxide and aluminum oxide, wherein the reaction takes place in the gas phase and the catalytically active composition of the catalyst before reduction with hydrogen comprisesfrom 20 to 75% by weight of aluminum oxide (Al2O3),from 20 to 75% by weight of oxygen-comprising compounds of copper, calculated as CuO,from 0 to 2% by weight of oxygen-comprising compounds of sodium, calculated as Na2O, andless than 5% by weight of oxygen-comprising compounds of nickel, calculated as NiO, and the shaped catalyst body has a pellet shape having a diameter in the range from 1 to 4 mm and a height in the range from 1 to 4 mm.
摘要翻译:通过伯醇或仲醇,醛和/或酮与氢和选自氨,伯胺和仲胺的氮化合物在60至300℃的温度下反应连续制备胺的方法 在包含氧化铜和氧化铝的催化剂存在下,其中反应在气相中进行,催化剂在用氢还原前的催化活性组合物包含20至75重量%的氧化铝(Al 2 O 3 ),20至75重量%的以氧化铜计的含氧化合物的铜(以CuO计)为0至2重量%的含氧化合物的钠(以Na 2 O计)和小于5重量% 包括以NiO计算的镍化合物,并且成型催化剂体具有直径在1至4mm范围内且高度在1至4mm范围内的颗粒形状。
摘要:
Process for the continuous preparation of an amine by reaction of a primary or secondary alcohol, aldehyde and/or ketone with hydrogen and a nitrogen compound selected from the group consisting of ammonia, primary and secondary amines at a temperature in the range from 60 to 300° C. in the presence of a catalyst comprising copper oxide and aluminum oxide, wherein the reaction takes place in the gas phase and the catalytically active composition of the catalyst before reduction with hydrogen comprises PS from 20 to 75% by weight of aluminum oxide (Al2O3),from 20 to 75% by weight of oxygen-comprising compounds of copper, calculated as CuO, from 0 to 2% by weight of oxygen-comprising compounds of sodium, calculated as Na2O, and less than 5% by weight of oxygen-comprising compounds of nickel, calculated as NiO, and the shaped catalyst body has a pellet shape having a diameter in the range from 1 to 4 mm and a height in the range from 1 to 4 mm.
摘要翻译:通过伯醇或仲醇,醛和/或酮与氢和选自氨,伯胺和仲胺的氮化合物在60至300℃的温度下反应来连续制备胺的方法 在包含氧化铜和氧化铝的催化剂存在下,其中反应在气相中进行,并且在用氢还原之前催化活性组合物包含20至75重量%的氧化铝(PS) Al 2 O 3),20至75重量%的含氧化合物的铜(以CuO计),0至2重量%的含氧化合物的钠(以Na 2 O计)和小于5重量%的氧 令人惊奇的以NiO计算的镍化合物,成型的催化剂体具有直径在1至4mm范围内且高度在1至4mm范围内的颗粒形状。
摘要:
The use of a supported noble metal catalyst obtainable by applying a sparingly soluble noble metal compound to a support from solution or suspension, and subsequently treating thermally, for preparing olefinically unsaturated carbonyl compounds.
摘要:
A process for isomerizing olefinically unsaturated alcohols over supported noble metal catalysts with a support based on carbon in an oxygenous atmosphere.
摘要:
A process for isomerizing olefinically unsaturated alcohols over supported noble metal catalysts with a support based on carbon in an oxygenous atmosphere.
摘要:
A process for isomerizing olefinically unsaturated alcohols over supported noble metal catalysts with a support based on carbon in an oxygenous atmosphere.
摘要:
The present invention relates to a catalytically active composition comprising as active component Pd and Bi and at least one element selected from the group (a) consisting of Rh, Au, Sb, V, Cr, W, Mn, Fe, Co, Ni, Na, Cs and Ba, or Pd, Rh and Bi and optionally an element selected from the group (a′) consisting of Au, Sb, V, Cr, W, Mn, Fe, Co, Ni, Pt, Cu, Ag, Na, Cs, Mg, Ca and Ba. The present invention further provides a process for dehydrogenating hydrocarbons, preferably oxo-functionalized hydrocarbons such as cyclopentanone, cyclohexanone and isovaleraldehyde, using the catalytically active composition.