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公开(公告)号：US4333884A
公开(公告)日：1982-06-08
申请号：US191702
申请日：1980-09-29
IPC分类号： C07C53/12 , B01J27/00 , B01J31/00 , C07B61/00 , C07C51/00 , C07C51/54 , C07C51/56 , C07C67/00
摘要： The invention relates to an improved process for making acetic anhydride by reacting methyl acetate and/or dimethylether with carbon monoxide under practically anhydrous conditions, at temperatures of 350 to 575 K., under pressures of 1 to 300 bars, and in the presence of a catalyst system containing noble metals belonging to group VIII of the periodic system of the elements, or compounds thereof, iodine and/or its compounds, and an aliphatic carboxylic acid having 1 to 8 carbon atoms. The improved process is effected in the presence of a catalyst system containing, as additional ingredients, a heterocyclic aromatic compound, in which at least one hetero atom is a quaternary nitrogen atom, or a quaternary organophosphorus compound, and a zirconium compound being soluble in the reaction mixture.
摘要翻译： 本发明涉及通过使甲酸乙酯和/或二甲基醚与一氧化碳在几乎无水的条件下在350至575K的温度下在1-300巴的压力下反应制备乙酸酐的改进方法，并且在 含有属于元素周期系的VIII族的贵金属或其化合物，碘和/或其化合物以及具有1至8个碳原子的脂族羧酸的催化剂体系。 改进的方法是在催化剂体系存在下进行的，所述催化剂体系含有作为附加成分的杂环芳族化合物，其中至少一个杂原子是季氮原子，或季有机磷化合物，和锆化合物可溶于 反应混合物。
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公开(公告)号：US4319038A
公开(公告)日：1982-03-09
申请号：US195480
申请日：1980-10-09
IPC分类号： C07C67/36 , B01J23/32 , B01J23/46 , B01J31/00 , C07B61/00 , C07C27/00 , C07C67/00 , C07C67/293 , C07C67/37 , C07C69/16
摘要： The invention relates to an improved process for making 1,1-diacetoxyethane by reacting methyl acetate and/or dimethylether with carbon monoxide and hydrogen under practically anhydrous conditions, at temperatures of 350.degree. to 575.degree. K., under pressures of 1 to 300 bars, and in the presence of a catalyst system containing noble metals belonging to group VIII of the periodic system of the elements, or compounds thereof, and iodine and/or its compounds. The improved process is effected in the presence of a catalyst system containing, as additional ingredients, an aliphatic carboxylic acid having 1 to 8 carbon atoms, a heterocyclic aromatic compound, in which at least one hetero atom is a quaternary nitrogen atom, and a manganese or rhenium compound.
摘要翻译： 本发明涉及通过使甲基乙酸酯和/或二甲醚与一氧化碳和氢气在几乎无水的条件下，在350〜575℃的温度下，在1〜300巴的压力下进行制备的改进方法 并且在含有属于元素的周期性体系的VIII族的贵金属或其化合物的催化剂体系的存在下，以及碘和/或其化合物。 改进的方法在含有作为附加成分的含有1至8个碳原子的脂肪族羧酸的催化剂体系存在下进行，其中至少一个杂原子是季氮原子的杂环芳族化合物和锰 或铼化合物。
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3.发明授权Process for separating the catalyst system from the reaction mixtures of carbonylation reactions 失效将催化剂体系与羰基化反应的反应混合物分离的方法
公开(公告)号：US4549937A
公开(公告)日：1985-10-29
申请号：US442107
申请日：1982-11-16
IPC分类号： C07C69/34 , B01J31/00 , C07C51/00 , C07C51/573 , C07C53/12 , C07C67/00 , C07C67/54 , C07C69/16 , B01D3/06 , C07C51/56
CPC分类号： C07C51/573 , C07C67/54
摘要： The disclosure relates to a process for separating the catalyst system from reaction mixtures which are obtained by reacting methyl acetate and/or dimethylether with carbon monoxide and optionally hydrogen at elevated temperatures to acetic anhydride and optionally ethylidene diacetate in the presence of a catalyst system consisting of carbonyl complexes of noble metals belonging to group VIII of the Periodic System, acetic acid, an organophosphorus or organonitrogen compound, methyl iodide and optionally compounds of carbonyl-yielding common metals, and which issue from the reaction zone under a pressure of 25 to 150 bars at a temperature of 100.degree. to 250.degree. C. More particularly, the reaction mixture coming from the reaction zone is introduced into a separator heated to 60.degree. to 140.degree. C. and released to a pressure of 0.5 to 3.5 bars with spontaneous evaporation of the bulk of volatile constituents; the stream of liquid matter coming from the separator is delivered to a distilling zone and the bulk of still volatile constituents is distilled off therein under a pressure of 0.05 to 1 bar at a base temperature of 70.degree. to 170.degree. C.; and catalyst solution retained as base product is recycled to the reaction zone.
摘要翻译： 本公开涉及一种从反应混合物中分离催化剂体系的方法，其通过使乙酸甲酯和/或二甲醚与一氧化碳和任选的氢气在高温下反应而获得，所述方法是在催化剂体系存在下在高温下在乙酸酐和任选的亚乙基二乙酸酯 属于周期系第VIII族的贵金属的羰基络合物，乙酸，有机磷或有机氮化合物，甲基碘和任选的产生羰基的常见金属的化合物，并且在25至150巴的压力下从反应区发出 更优选地，将来自反应区的反应混合物引入加热至60℃至140℃的隔膜中，并释放至0.5至3.5巴的压力，并自发蒸发 大部分挥发性成分; 来自分离器的液体物流被输送到蒸馏区，并且在基本温度为70至170℃的压力下，在0.05至1巴的压力下蒸馏出大部分挥发性挥发性成分。 将作为基础产物保留的催化剂溶液再循环至反应区。
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公开(公告)号：US4430273A
公开(公告)日：1984-02-07
申请号：US366344
申请日：1982-04-07
IPC分类号： C07C53/12 , B01J31/00 , C07B61/00 , C07C51/00 , C07C51/54 , C07C51/56 , C07C67/00 , C07C51/12
摘要： The invention provides a process for making acetic anhydride, wherein methyl acetate and/or dimethylether is (are) reacted with carbon monoxide under substantially anhydrous conditions, at temperatures of 350 to 575 K and under pressures of 1 to 300 bars in the presence of a catalyst system comprised of noble metals belonging to group VIII of the periodic system of the elements, or their compounds and iodine and/or its compounds. More specifically, an aliphatic carboxylic acid with 1 to 8 carbon atoms and at least one heterocyclic aromatic compound, in which at least one hetero atom is a quaternary nitrogen atom are used as promoters.
摘要翻译： 本发明提供一种制备乙酸酐的方法，其中乙酸甲酯和/或二甲醚在基本上无水条件下，在一氧化碳条件下，在350-575K的温度和1-300巴的压力下，在 催化剂体系由属于元素周期系的第VIII族的贵金属或其化合物和碘和/或其化合物组成。 更具体地，使用具有1至8个碳原子的脂族羧酸和至少一个杂环芳族化合物，其中至少一个杂原子是季氮原子作为启动子。
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公开(公告)号：US4280010A
公开(公告)日：1981-07-21
申请号：US66511
申请日：1979-08-14
CPC分类号： C07C67/08 , C07C67/54 , Y02P20/584
摘要： Alkyl acrylates free from ether are made continuously by reacting acrylic acid with a C.sub.1 -C.sub.4 -alkanol, in a molar ratio of 1:1 to 1:2, in liquid phase, at 80.degree. to 130.degree. C., under 100 to 760 mm Hg, in the presence of an acid catalyst.
摘要翻译： 不含醚的丙烯酸烷基酯通过丙烯酸与C1-C4链烷醇以摩尔比1：1至1：2在液相中，在80至130℃，100至760 mm Hg，在酸催化剂存在下。
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