用于醛和/或醇的大规模制备的氢甲酰化方法
阅读说明:本技术 用于醛和/或醇的大规模制备的氢甲酰化方法 (Hydroformylation process for large scale production of aldehydes and/or alcohols ) 是由 S·祖德 R·帕普 B·布莱特沙伊德 A·朗格德奥利韦拉 于 2018-05-14 设计创作,主要内容包括:一种由底部馏分制备C<Sub>4</Sub>-C<Sub>13</Sub>单羟基化合物的方法,所述馏分在来自钴催化或铑催化的氢甲酰化的C<Sub>4</Sub>-C<Sub>13</Sub>羰基合成法醛的粗混合物的蒸馏中产生,或在C<Sub>4</Sub>-C<Sub>13</Sub>羰基合成法醇的粗混合物的蒸馏中产生。所述方法的特征在于,在氢气存在下使底部馏分与包含氧化铜及氧化铝的催化剂在150-300℃的温度及20-300巴的压力下接触,且将所得氢化粗产物蒸馏,且在氢化之后存在于氢化粗产物中的C<Sub>4</Sub>-C<Sub>13</Sub>单羟基化合物的量超过底部馏分中存在的酯及醛化合物的氢化化学计量给出的C<Sub>4</Sub>-C<Sub>13</Sub>单羟基化合物的量,包括在氢化之前仍存在于该底部馏分中的C<Sub>4</Sub>-C<Sub>13</Sub>单羟基化合物。(Preparation of C from bottom fraction 4 ‑C 13 Method for producing monohydroxy compounds, the fraction being at C from cobalt-or rhodium-catalysed hydroformylation 4 ‑C 13 Produced in the distillation of the crude mixture of aldehydes from the oxo process, or in C 4 ‑C 13 In the distillation of a crude mixture of oxo alcohols. Said method is characterized in that the bottom fraction is contacted with a catalyst comprising copper oxide and aluminum oxide in the presence of hydrogen at a temperature of 150-300 ℃ and a pressure of 20-300 bar, and the resulting hydrogenation crude is distilled and the C present in the hydrogenation crude after hydrogenation is 4 ‑C 13 Amount of monohydroxy compoundC given in excess of the hydrogenation stoichiometry of the ester and aldehyde compounds present in the bottom fraction 4 ‑C 13 The amount of monohydroxy compounds, including C, still present in the bottom fraction prior to hydrogenation 4 ‑C 13 A monohydroxy compound.)
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