Process for the production of 2,2-dimethoxypropane
    2.
    发明授权
    Process for the production of 2,2-dimethoxypropane 失效
    生产2,2-二甲氧基丙烷的方法

    公开(公告)号:US4775447A

    公开(公告)日:1988-10-04

    申请号:US621814

    申请日:1984-06-18

    IPC分类号: C07C41/56 C07C41/58 B01D3/36

    摘要: The process for the acid-catalyzed reaction of acetone with methanol to form 2,2-dimethoxypropane may be significantly improved if a stoichiometric ratio of methanol/acetone is employed in the initial reaction.Of particular advantage is the use of stoichiometric amounts of reactants in order to (1) avoid the expense of using an excess of either reactant, and (2) facilitate the removal of the 2,2-dimethoxypropane as an azeotrope with the methanol, thereby avoiding costly and complex product recovery methods.

    摘要翻译: 如果在初始反应中使用甲醇/丙酮的化学计量比,丙酮与甲醇酸反应形成2,2-二甲氧基丙烷的方法可能会显着改善。 特别有利的是使用化学计量的反应物,以便(1)避免使用过量的任一种反应物的费用,和(2)促进除去与甲醇的共沸物的2,2-二甲氧基丙烷,由此 避免昂贵和复杂的产品回收方法。

    Process for oxidizing phenol to benzoquinone
    4.
    发明授权
    Process for oxidizing phenol to benzoquinone 失效
    将酚氧化成苯醌的方法

    公开(公告)号:US4442036A

    公开(公告)日:1984-04-10

    申请号:US470694

    申请日:1983-02-28

    IPC分类号: C07C46/08 C07C49/64

    CPC分类号: C07C46/08

    摘要: Phenol is oxidized to benzoquinone with a bivalent copper catalyst using a vicinal dialkoxy alkane or cycloalkane as promoter, whereby improved conversion and/or selectivity is obtained.

    摘要翻译: 使用邻位二烷氧基烷烃或环烷烃作为助催化剂,用二价铜催化剂将苯酚氧化成苯醌,从而获得改进的转化率和/或选择性。

    Hydrocracking using solid superacid catalysts comprising platinum metal
    6.
    发明授权
    Hydrocracking using solid superacid catalysts comprising platinum metal 失效
    使用包含铂金属的固体超强酸催化剂进行加氢裂化

    公开(公告)号:US5494569A

    公开(公告)日:1996-02-27

    申请号:US184159

    申请日:1994-01-21

    IPC分类号: B01J27/053 C10G47/14

    CPC分类号: B01J27/053

    摘要: A hydrocracking process is provided which process utilizes a sulfated solid catalyst comprising (1) oxide or hydroxide of Group III or Group IV element, e.g. zirconium, and (2) a first metal comprising a metal or combination of metals selected from the group consisting of platinum, palladium, nickel, platinum and rhenium, and platinum and tin. The catalyst may further comprise (3) a second metal selected from the group consisting of Group VIII elements, e.g. iron. One embodiment of the invention further comprises (4) a third metal selected from the group consisting of Group V, VI and VII elements, e.g. manganese.

    摘要翻译: 提供加氢裂化方法,该方法利用硫酸化固体催化剂,其包含(1)III族或IV族元素的氧化物或氢氧化物,例如 锆,和(2)包含选自铂,钯,镍,铂和铼的金属或金属组合的第一金属以及铂和锡。 催化剂还可以包含(3)选自VIII族元素的第二种金属,例如。 铁。 本发明的一个实施方案还包括(4)选自第V,VI和VII族元素的第三种金属,例如。 锰。

    Process for production of cinnamates
    8.
    发明授权
    Process for production of cinnamates 失效
    肉桂酸酯生产工艺

    公开(公告)号:US4855485A

    公开(公告)日:1989-08-08

    申请号:US45507

    申请日:1987-05-04

    申请人: Chao-Yang Hsu

    发明人: Chao-Yang Hsu

    IPC分类号: C07C45/49 C07C205/56

    CPC分类号: C07C67/36 C07C45/36

    摘要: In the process of preparing esters of cinnamic acid by reacting a styrene compound with carbon monoxide, oxygen, and an aliphatic alcohol in the presence of a catalyst, the improvement comprising using less than a stoichiometric amount of a dehydrating agent to increase the yield and selectivity of the reaction products.

    摘要翻译: 在通过在催化剂存在下使苯乙烯化合物与一氧化碳,氧气和脂族醇反应制备肉桂酸酯的方法,其改进包括使用少于化学计量的脱水剂以提高产率和选择性 的反应产物。

    Process for the selective formation of dialkyl succinates
    9.
    发明授权
    Process for the selective formation of dialkyl succinates 失效
    选择性形成琥珀酸二烷基酯的方法

    公开(公告)号:US4827023A

    公开(公告)日:1989-05-02

    申请号:US126321

    申请日:1987-11-27

    申请人: Chao-Yang Hsu

    发明人: Chao-Yang Hsu

    IPC分类号: C07C67/38

    CPC分类号: C07C67/38

    摘要: The invention discloses an improvement to the selective production of dialkyl succinates by the known process of oxidative carbonylation of an olefin with carbon monoxide, oxygen, and an alkyl alochol in the presence of a catalyst wherein the improvement comprises using a sulfone as the reaction solvent. The use of a sulfone, of which sulfolane is a preferred example, results in fast reaction rates and high selectivity to dialkyl succinates even in the absence of a dehydrating agent.

    摘要翻译: 本发明公开了在催化剂存在下通过烯烃与一氧化碳,氧和烷基醇的氧化羰基化的已知方法选择性生产二烷基琥珀酸的改进,其中改进包括使用砜作为反应溶剂。 使用环丁砜是优选实例的砜的使用导致即使在不存在脱水剂的情况下,快速的反应速率和对二烷基琥珀酸酯的高选择性。

    Process for the production and purification of diethoxymethane by
azeotropic distillation
    10.
    发明授权
    Process for the production and purification of diethoxymethane by azeotropic distillation 失效
    通过共沸蒸馏生产和纯化二乙氧基甲烷的方法

    公开(公告)号:US4613411A

    公开(公告)日:1986-09-23

    申请号:US803199

    申请日:1985-12-02

    IPC分类号: C07C41/58 B01D3/36

    CPC分类号: C07C41/58 C07C41/56

    摘要: Diethoxymethane (ethylal), prepared by reacting formaldehyde with ethanol, may be recovered from the product mixture in substantially pure form by first distilling off an azeotrope comprising ethanol and diethoxymethane, adding a selected solvent to the azeotrope which will form an azeotrope with the ethanol, distilling off said latter azeotrope and recovering the substantially pure diethoxymethane.

    摘要翻译: 通过甲醛与乙醇反应制备的二乙氧基甲烷(乙基)可以从产物混合物中以基本上纯的形式回收,首先蒸馏出包含乙醇和二乙氧基甲烷的共沸物,向与乙醇形成共沸物的共沸物中加入选定的溶剂, 蒸馏掉后一种共沸物并回收基本上纯的二乙氧基甲烷。