Method of accelerating methanol carbonylation
    4.
    发明授权
    Method of accelerating methanol carbonylation 有权
    加速甲醇羰基化的方法

    公开(公告)号:US08802893B2

    公开(公告)日:2014-08-12

    申请号:US13257379

    申请日:2011-02-08

    IPC分类号: C07C51/10

    摘要: According to a method for producing acetic acid by carbonylation of methanol characterized in that an acid having an acid dissociation constant (pKa) smaller than the constant of acetic acid is allowed to be present in the reaction system, acetic acid can be produced by the reaction of methanol and carbon monoxide in a reaction liquid in the presence of a solid catalyst containing rhodium and alkyl iodide, to achieve an enhanced reaction rate of carbonylation of methanol in producing acetic acid in the region at a high carbonylation degree (Ca>0.8 mol/mol) for more efficient production of acetic acid.

    摘要翻译: 根据通过羰基化甲醇生产乙酸的方法,其特征在于在反应体系中存在酸解离常数(pKa)小于乙酸常数的酸,可以通过反应生成乙酸 的甲醇和一氧化碳在含有铑和烷基碘的固体催化剂存在下的反应液中,以在羰基化程度高(Ca> 0.8mol / L)的区域中提高甲醇生产乙酸的羰基化反应速率, mol)以更有效地生产乙酸。

    Motorcycle
    5.
    发明授权
    Motorcycle 失效
    摩托车

    公开(公告)号:US5887673A

    公开(公告)日:1999-03-30

    申请号:US848606

    申请日:1997-04-29

    IPC分类号: B62K11/04 B62M7/02

    CPC分类号: B62K11/04

    摘要: A motorcycle has a head pipe supporting a steering shaft, a pair of bilateral main frame pipes having front ends fixed to the head pipe and extending rearward therefrom, an engine unit disposed below the main frame pipes and having cylinders projecting obliquely forward from an engine casing, an air cleaner covered by an air cleaner casing which is disposed between both the main frame pipes, and intake devices extending upward from the cylinders and having air intake inlet portions inserted into the air cleaner casing. The air cleaner casing has a bottom portion to which a downwardly protruded portion is formed at a rear position of the intake devices, and the main frame pipes are connected through a first coupling member disposed between the intake devices and the protruded portion of the air cleaner casing. The air cleaner casing is formed with a recessed portion at the bottom portion thereof, and the recessed portion has a shape suitable for accommodating the first coupling member. A pair of bilateral head frame pipes are further provided so as to be fixed at the front ends thereof to the head pipe and extending rearward therefrom below the location of the main frame pipes, and second coupling members connecting the first coupling member to each of the head frame pipes are also arranged.

    摘要翻译: 摩托车具有支撑转向轴的头管,一对双侧主框架管,其前端固定在头管上并向后延伸;发动机单元,设置在主框架管下方,并具有从发动机壳体向斜前方突出的气缸 由空气滤清器壳体覆盖的空气滤清器,该空气滤清器壳体设置在两个主框架管之间,进气装置从气缸向上延伸,并具有插入空气滤清器壳体中的进气口部分。 空气滤清器壳体具有底部,在进气装置的后部位置处形成有向下突出的部分,并且主框架管通过布置在进气装置和空气净化器的突出部分之间的第一联接构件连接 套管。 空气滤清器壳体在其底部形成有凹部,凹部具有适于容纳第一联接构件的形状。 还有一对双边头框架管,其前端固定在头管上,从主框架管的位置向后方延伸,第二联接构件将第一联接构件连接到 头架管道也布置。