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    • 36. 发明申请
    • PROCESS FOR CONVERTING LEVULINIC ACID INTO PENTANOIC ACIDITLE
    • 将维生素酸转化成苦味酸的方法
    • US20100292507A1
    • 2010-11-18
    • US12668715
    • 2008-07-09
    • Jean-Paul Lange
    • Jean-Paul Lange
    • C07C53/00
    • C07C51/377C07C53/126
    • A process for converting levulinic acid into pentanoic acid, comprising the following steps: (a) supplying hydrogen and a feedstock comprising levulinic acid to a first catalytic zone comprising a strongly acidic catalyst and a hydrogenation metal; (b) converting, in the first catalytic zone, the levulinic acid at a temperature in the range of from 100 to 250° C. into gamma valerolactone to obtain a first effluent comprising gamma valerolactone; (c) supplying at least part of the first effluent to a second catalytic zone comprising a strongly acidic catalyst and a hydrogenation metal; and (d) converting, in the second catalytic zone, gamma valerolactone into pentanoic acid at a temperature in the range of from 200 to 350° C. to obtain a second effluent comprising pentanoic acid, wherein the conversion temperature in the first catalytic zone is lower than the conversion temperature in the second catalytic zone, and wherein the acidic catalyst and the hydrogenation metal in the first catalytic zone has the same composition as the acidic catalyst and the hydrogenation metal in the second catalytic zone.
    • 一种将乙酰丙酸转化为戊酸的方法,包括以下步骤:(a)向包含强酸性催化剂和氢化金属的第一催化区供应氢和包含乙酰丙酸的原料; (b)在第一催化区中将乙酰丙酸在100-250℃的温度范围内转化成γ-戊内酯,得到含有γ-戊内酯的第一流出液; (c)将至少部分第一流出物供应到包含强酸性催化剂和氢化金属的第二催化区; 和(d)在第二催化区域中将γ-戊内酯在200-350℃的温度范围内转化成戊酸,得到包含戊酸的第二流出物,其中第一催化区域中的转化温度为 低于第二催化区中的转化温度,并且其中第一催化区中的酸性催化剂和氢化金属具有与酸性催化剂和第二催化区中的氢化金属相同的组成。
    • 39. 发明申请
    • Process for the hydrogenation of a lactone or of a carboxylic acid or an ester having a gamma-carbonyl group
    • 内酯或具有γ-羰基的羧酸或酯的氢化方法
    • US20060162239A1
    • 2006-07-27
    • US11314404
    • 2005-12-21
    • Peter Van Den BrinkKlaas Von HebelJean-Paul LangeLeonardus Petrus
    • Peter Van Den BrinkKlaas Von HebelJean-Paul LangeLeonardus Petrus
    • C10L1/18C07C69/02
    • C07C51/377C07C53/126
    • The invention provides a process for the hydrogenation of a reactant selected from the group consisting of: (a) a 5- or 6-membered lactone that is substituted at the ring-closing carbon atom and has a proton at a carbon atom adjacent to the ring-closing carbon atom; (b) an ester of a carboxylic acid having a gamma-carbonyl group and a proton at a carbon atom adjacent to the carbon atom of the carbonyl group; and (c) a carboxylic acid having a gamma-carbonyl group and a proton at a carbon atom adjacent to the carbon atom of the carbonyl group, wherein the reactant is contacted with a strongly acidic heterogeneous catalyst comprising a hydrogenating metal, in the presence of hydrogen, at a temperature in the range of from 100 to 350° C. and a pressure in the range of from 1 to 150 bar (absolute). The invention further provides a fuel composition, preferably a diesel composition, comprising di-alkyl 4-methylnonanedioate or di-alkyl 3-ethyl-4-methylheptanedioate.
    • 本发明提供了一种用于氢化反应物的方法,所述反应物选自:(a)在闭环碳原子处被取代并且在与碳原子相邻的碳原子处具有质子的5-或6-元内酯 闭环碳原子; (b)在与羰基的碳原子相邻的碳原子处具有γ-羰基和质子的羧酸的酯; 和(c)在与羰基的碳原子相邻的碳原子处具有γ-羰基和质子的羧酸,其中反应物与包含氢化金属的强酸性多相催化剂在存在下, 氢气,温度范围为100至350℃,压力范围为1至150巴(绝对)。 本发明还提供一种燃料组合物,优选含有4-甲基壬二酸二烷基酯或3-乙基-4-甲基庚二酸二烷基酯的柴油组合物。