Process for preparing lactamide
    1.
    发明授权
    Process for preparing lactamide 失效
    制备酰胺的方法

    公开(公告)号:US6124501A

    公开(公告)日:2000-09-26

    申请号:US261858

    申请日:1999-03-03

    IPC分类号: C07C231/06 C07C235/06

    CPC分类号: C07C231/065

    摘要: A process for preparing lactamide with a high conversion and a high selectivity without the deterioration of a catalytic activity in a short time, which comprises subjecting lactonitrile to a hydrating reaction in the presence of (A) a catalyst including an oxide of manganese as a main component, (B) an oxidizing agent and (C) hydrogen cyanide or hydrogen cyanide and a compound represented by the formula ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 are each a hydrogen atom, a C.sub.1 to C.sub.8 alkyl group, a C.sub.1 to C.sub.8 hyroxyalkyl group, a C.sub.1 to C.sub.8 aminoalkyl group or a C.sub.1 to C.sub.8 halogenoalkyl group.

    摘要翻译: 一种制备具有高转化率和高选择性而不会在短时间内催化活性降低的乳酰胺的方法,其包括在(A)包含以锰的氧化物为主要原料的催化剂存在下,使乳腈进行水合反应 组分,(B)氧化剂和(C)氰化氢或氰化氢和由下式表示的化合物其中R1,R2和R3各自为氢原子,C1至C8烷基,C1至C8羟烷基, C1〜C8氨基烷基或C1〜C8卤代烷基。

    Method for producing deuterated methyl methacrylate
    2.
    发明授权
    Method for producing deuterated methyl methacrylate 失效
    氘代甲基丙烯酸甲酯的制备方法

    公开(公告)号:US07375247B2

    公开(公告)日:2008-05-20

    申请号:US10569643

    申请日:2004-09-01

    IPC分类号: C07C67/20

    摘要: A method for producing MMA-d8 which includes a step of exchanging D in hydroxyl group of methanol-d4 represented by the formula: CD3OD with H to prepare the methanol-d3 represented by the formula CD3OH and simultaneously recovering a deuterium-containing compound, and a step of reacting methanol-d3 with sulfuric acid salt of methacrylic acid amide represented by the formula CD2=(CD3)CO(NH2.H2SO4) to prepare MMA-d8 represented by the formula: CD2=(CD3)COOCD3.

    摘要翻译: 一种制备MMA-d 8 N的方法,该方法包括在由下式表示的甲醇-d 4的羟基中交换D的步骤:< 3< 3> > OD以制备由式CD 3 OH表示的甲醇-d 3并同时回收含氘化合物,并且使甲醇-d 3反应, 由式CD 2代表的甲基丙烯酸酰胺的硫酸盐(NH 3 CO 2(CO 3 NH 3)) 以制备由下列化学式表示的MMA-d 8:(2)式(Ⅳ) CD 3)COOCD 3 3。

    Method for producing deuterated methyl methacrylate
    3.
    发明申请
    Method for producing deuterated methyl methacrylate 失效
    氘代甲基丙烯酸甲酯的制备方法

    公开(公告)号:US20070043242A1

    公开(公告)日:2007-02-22

    申请号:US10569643

    申请日:2004-09-01

    IPC分类号: C07C233/02

    摘要: A method for producing MMA-d8 which includes a step of exchanging D in hydroxyl group of methanol-d4 represented by the formula: CD3OD with H to prepare the methanol-d3 represented by the formula CD3OH and simultaneously recovering a deuterium-containing compound, and a step of reacting methanol-d3 with sulfuric acid salt of methacrylic acid amide represented by the formula CD2═(CD3)CO(NH2·H2SO4) to prepare MMA-d8 represented by the formula: CD2═(CD3)COOCD3.

    摘要翻译: 一种制备MMA-d 8 N的方法,该方法包括在由下式表示的甲醇-d 4的羟基中交换D的步骤:< 3< 3> > OD以制备由式CD 3 OH表示的甲醇-d 3并同时回收含氘化合物,并且使甲醇-d 3反应, 由式CD 2 - (CD 3 N)CO(NH 2)2表示的甲基丙烯酸酰胺的硫酸盐与(3-N) > H 2 SO 4),以制备由下式表示的MMA-d 8:(Ⅳ)(((((((::::::::::::::::::::::::::::::: CD 3)COOCD 3 3。

    Process for manufacturing methanol and process for manufacturing
catalyst for methanol synthesis
    5.
    发明授权
    Process for manufacturing methanol and process for manufacturing catalyst for methanol synthesis 失效
    制造甲醇的方法和制备甲醇合成催化剂的方法

    公开(公告)号:US5767039A

    公开(公告)日:1998-06-16

    申请号:US634604

    申请日:1996-04-18

    摘要: A process for manufacturing methanol is herein disclosed which comprises the step of reacting hydrogen with carbon monoxide and/or carbon dioxide in the presence of a synthetic catalyst obtainable by mixing, in a slurry state, (a) a beforehand prepared precipitation slurry of copper and zinc, with (b) an alumina precursor separately prepared from a water-soluble aluminum salt and a basic precipitant, to obtain a composition containing copper, zinc and aluminum, and washing, drying and then calcining the composition. A process for manufacturing the above-mentioned catalyst is also disclosed. According to the present invention, methanol can extremely efficiently be manufactured, and the catalyst having a high activity and an excellent heat resistance can also be manufactured.

    摘要翻译: 本文公开了一种制造甲醇的方法,其包括在合成催化剂存在下使氢气与一氧化碳和/或二氧化碳反应的步骤,所述合成催化剂可以通过以浆液状态混合(a)预先制备的铜沉淀浆料和 锌,与(b)由水溶性铝盐和碱性沉淀剂分别制备的氧化铝前体,得到含有铜,锌和铝的组合物,洗涤,干燥,然后煅烧该组合物。 还公开了制造上述催化剂的方法。 根据本发明,可以非常有效地制造甲醇,也可以制造活性高,耐热性优异的催化剂。