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公开(公告)号：US4026908A
公开(公告)日：1977-05-31
申请号：US678129
申请日：1976-04-19
IPC分类号： B01J23/00 , B01J31/00 , C07B61/00 , C07D301/12 , C07D303/04
CPC分类号： C07D303/04 , C07D301/12
摘要： The present invention relates to a new process for the catalytic epoxidation of olefins which comprises reacting an olefin of the formula ##STR1## in which R.sub.1, R.sub.2, R.sub.3 and R.sub.4, which can be the same or different, represent either a hydrogen atom, a straight alkyl radical having 1 to 30 carbon atoms, a branched alkyl radical or cycloalkyl radical having 3 to 12 carbon atoms, a hydrocarbon radical having 6 to 12 carbon atoms and containing a phenyl group; or R.sub.1 and R.sub.2, or R.sub.3 or R.sub.4 together represent a straight or branched alkylene radical with 3 to 11 carbon atoms, (the radicals R.sub.1, R.sub.2, R.sub.3 and R.sub.4 can be unsaturated and/or substituted with functional groups which are stable in the reaction medium, such as hydroxy, chloro, fluoro, bromo, iodo, nitro (--NO.sub.2), nitroso (--NO), alkoxy, (--OR') amino (--NH.sub.2), carbonyl (=CO), alkylcarbonyl ##STR2## carboxylic acid (--COOH), carboxylic acid ester (--COOR'), amide or carbamyl (--CONH.sub.2), nitrile or cyano (--CN) groups, etc.), with hydrogen peroxide at a pH of between about 6 and 9 in the presence of a catalytic system containing at least one derivative of mercury and at least one derivative of the elements IVA, VA, VIA of the Mendeleev Periodic Table. The two fundamental constituents of the catalyst may either belong to distinct molecules or may form part of the same molecule, for example within a complex.
摘要翻译： 烯烃催化环氧化的新方法本发明涉及烯烃催化环氧化的新方法，该方法包括使式（I）的烯烃与式（Ⅰ）的烯烃反应，其中可以相同或不同的R 1，R 2，R 3和R 4表示氢 原子，碳原子数1〜30的直链烷基，碳原子数3〜12的支链烷基或环烷基，碳原子数6〜12的烃基，含有苯基; 或R 1和R 2或R 3或R 4一起表示具有3至11个碳原子的直链或支链亚烷基（基团R 1，R 2，R 3和R 4可以是不饱和的和/或被反应稳定的官能团取代） 介质，如羟基，氯，氟，溴，碘，硝基（-NO 2），亚硝基（-NO），烷氧基，（-OR'）氨基（-NH 2），羰基（= CO），烷基羰基 酸（-COOH），羧酸酯（-COOR'），酰胺或氨基甲酰基（-CONH 2），腈或氰基（-CN）基团等），其中过氧化氢的pH为约6至9， 含有至少一种汞衍生物和门多列夫周期表元素IVA，VA，VIA的至少一种衍生物的催化体系的存在。 催化剂的两个基本组分可以属于不同的分子，或者可以形成相同分子的一部分，例如在复合物内。
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公开(公告)号：US4994583A
公开(公告)日：1991-02-19
申请号：US377806
申请日：1989-07-12
IPC分类号： C07D313/04 , B01J21/02 , C07B61/00 , C07D315/00
CPC分类号： C07D315/00 , Y02P20/582
摘要： Process for manufacturing .SIGMA.- caprolactone by oxidation of cyclohexanone by means of a crude C.sub.2 -C.sub.4 percarboxylic acid solution, resulting from the reaction of hydrogen peroxide on the corresponding carboxylic acid in the presence of a weak acid catalyst, with continuous elimination of water by azeotropic entrainment, characterized in that the molar ratio of cyclohexanone used to the percarboxylic acid is between about 0.50 to 0.99.
摘要翻译： 通过在弱酸催化剂存在下由过氧化氢在相应的羧酸上反应产生的粗C2-C4过羧酸溶液来环己酮的氧化制备SIGMA-己内酯的方法，通过共沸连续消除水 夹带，其特征在于使用的环己酮与过羧酸的摩尔比为约0.50至0.99。
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公开(公告)号：US4459240A
公开(公告)日：1984-07-10
申请号：US450002
申请日：1982-12-15
IPC分类号： C07C409/10 , B01J21/02 , B01J27/02 , C07B61/00 , C07C67/00 , C07C407/00 , C07C409/24 , C07C409/26 , C07C179/10
CPC分类号： C07C407/00 , C07C407/003
摘要： Process of preparing substantially anhydrous solutions of percarboxylic acids which comprises reacting hydrogen peroxide contained in an aqueous solution with a water miscible carboxylic acid in the presence of a catalyst and an azeotropic organic solvent, continuously removing the water added with the hydrogen peroxide and formed during the reaction by azeotropic distillation by way of a distillation column, and continuously injecting water into the top of the distillation column during at least the major portion of the reaction time, the quantity of the injected water being less than the quantity of the water removed by azeotrope distillation.
摘要翻译： 制备基本上无水的过羧酸溶液的方法，其包括在催化剂和共沸有机溶剂的存在下使包含在水溶液中的过氧化氢与水混溶性羧酸反应，连续除去加入过氧化氢并在 通过蒸馏塔进行共沸蒸馏反应，并在反应时间的至少大部分期间将水连续注入蒸馏塔的顶部，注入的水的量小于通过共沸物除去的水量 蒸馏。
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4.发明授权
公开(公告)号：US5114433A
公开(公告)日：1992-05-19
申请号：US493461
申请日：1990-03-14
摘要： The cetane numbers of directly distilled diesel fuels are significantly improved by intimately contacting same with an effective amount of hydrogen peroxide in the presence of a carboxylic acid, or with an effective amount of a percarboxylic acid either in the presence or absence of hydrogen peroxide.
摘要翻译： 直接蒸馏的柴油燃料的十六烷值通过在羧酸存在下与有效量的过氧化氢紧密接触或在有或没有过氧化氢存在下与有效量的过羧酸紧密接触而显着改善。
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公开(公告)号：US4740603A
公开(公告)日：1988-04-26
申请号：US873282
申请日：1986-06-04
IPC分类号： C07D311/82 , C07C409/24 , C07D313/04 , C07D315/00
CPC分类号： C07D315/00 , C07C407/00
摘要： This invention relates to a process for the preparation of stable solutions of .epsilon.-caprolactone by means of the oxidation of cyclohexanone by a percarboxylic acid containing 2 to 4 carbon atoms. According to the invention, the percarboxylic acid is in the form of a crude solution, such as that resulting from the reaction of hydrogen peroxide with the corresponding carboxylic acid in the presence of a boric acid catalyst with the continuous elimination of water by azeotropic entrainment.
摘要翻译： 本发明涉及通过环己酮通过含2-4个碳原子的过羧酸氧化制备ε-己内酯的稳定溶液的方法。 根据本发明，过羧酸是粗溶液的形式，例如在硼酸催化剂存在下由过氧化氢与相应的羧酸反应得到的，通过共沸夹带连续消除水。
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