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公开(公告)号:US4594463A
公开(公告)日:1986-06-10
申请号:US695370
申请日:1985-01-28
CPC分类号: C07C45/49 , B01J31/18 , B01J31/1805 , B01J31/1895 , B01J31/2404 , B01J31/2409 , C07C67/36 , B01J2531/822
摘要: A catalyst has been found for the low pressure hydroformylation of alcohols to produce aldehydes. This catalyst consists of a rhodium containing compound, an iodide containing compound, and a chelating Group V compound, which is used alone or in combination with a monodentate, Group V compound.It is the first rhodium-based catalyst that generates acetaldehyde via hydroformylation of the methanol. The reaction is typically carried out at 160.degree.-180.degree. C. and 1000-2000 psi. The acetaldehyde rate and selectivity are 1-5 Mhr.sup.-1 and 50-75%. Conventional cobalt catalysts require operating pressures of at least 3000-6000 psi in order to obtain reasonable productivities.
摘要翻译: 已经发现催化剂用于醇的低压加氢甲酰化以产生醛。 该催化剂由含铑化合物,含碘化物和螯合V族化合物组成,其单独使用或与单齿化合物V组合使用。 它是通过甲醇的加氢甲酰化产生乙醛的第一种基于铑的催化剂。 反应通常在160-180℃和1000-2000psi进行。 乙醛速率和选择性为1-5Mhr-1和50-75%。 常规的钴催化剂需要至少3000-6000psi的操作压力以获得合理的生产率。
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公开(公告)号:US4770107A
公开(公告)日:1988-09-13
申请号:US15434
申请日:1987-02-17
申请人: Deborah S. Miller
发明人: Deborah S. Miller
CPC分类号: B60N3/004
摘要: A portable and collapsible travel tray assembly is provided for mounting in conjunction with a conventional automobile seat positioned to the front of the user of the tray and the seat of the user, particularly a child's car seat. The portable tray assembly comprises a rigid bottom panel member having front, back, and side portions. The bottom panel member is provided with a pair of opposing folding side panels which extend along the side portions of the bottom panel and above the plane of the bottom panel when in the unfolded position. The tray assembly also includes a front folding panel extending between the opposing side panels and along the front portion of the bottom panel and above the plane of said bottom panel. The folding side and front panels permit the tray to be converted from a stowed or collapsed position when the side and front panels are in the folded or stowed position to a position of use when in the unfolded position. The opposing side panels include flexible arm members which extend beyond the front portion of the bottom panel and attach to front suspension means for supporting the front portion of the tray. A back suspension means is attached to the back portion of the bottom panel whereby the front and back suspension means coact to hold the tray in level position. When so mounted the tray is particularly adapted to serve as a small travel tray for the reception of articles in a position where it is readily accessible to a child, for example, seated in a car seat.
摘要翻译: 提供便携式和可折叠行进托盘组件,用于与定位在托盘的使用者的前面和使用者的座椅,特别是儿童的汽车座椅上的传统的汽车座椅相结合。 便携式托盘组件包括具有前部,后部和侧部的刚性底板构件。 底板构件设置有一对相对的折叠侧板,其在处于展开位置时沿着底板的侧部并且在底板的平面之上延伸。 托盘组件还包括在相对的侧板之间延伸并且沿着底板的前部并且在所述底板的平面之上延伸的前折叠板。 当侧面和前面板处于折叠或收起位置时,折叠侧和前面板允许托盘从收起或收缩的位置转换到处于展开位置的使用位置。 相对的侧板包括柔性臂构件,其延伸超过底板的前部并且附接到用于支撑托盘的前部的前悬架装置。 后悬挂装置附接到底板的后部,由此前悬挂装置和后悬架装置共同将托盘保持在水平位置。 当这样安装时,托盘特别适于用作用于在儿童容易接近的位置(例如坐在汽车座椅中)的物品的接收处理的小行进托盘。
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