Backpressure grid plate for pressure filtration system
    31.
    发明授权
    Backpressure grid plate for pressure filtration system 失效
    用于压力过滤系统的背压格栅板

    公开(公告)号:US4302333A

    公开(公告)日:1981-11-24

    申请号:US904885

    申请日:1978-05-11

    CPC classification number: B01D39/10 B01D35/28 B01D61/10 B01D63/08 B01D2313/90

    Abstract: A backpressure grid plate is provided for a pressure filtration system of the type comprising a housing with an inlet and outlet for conducting fluid to be treated, a filter disposed in the housing between said inlet and outlet, and a backpressure grid means arranged between the filter and the inlet. The backpressure grid means comprises a plate containing minute openings which are equal in size and distributed unevenly over the surface area of the plate in such manner that the surface distribution density of the openings is lowest within an inner impact area of the plate which receives inflowing fluid to be filtered and is highest within a proximity area of the plate located immediately adjacent to and surrounding the impact area. The surface distribution density of the openings within an outer area surrounding the proximity area is lower than that of the proximity area and higher than that of the impact area.

    Abstract translation: 提供了一种用于压力过滤系统的背压格栅板,该压力过滤系统包括具有用于导入待处理流体的入口和出口的壳体,设置在所述入口和出口之间的壳体中的过滤器和布置在过滤器之间的背压格栅装置 和入口。 背压格栅装置包括一个包含微小开口的板,其尺寸相等并且分布在板的表面积不均匀上,使得开口的表面分布密度在接收流入流体的板的内部冲击区域内最低 被过滤并且在紧邻和围绕冲击区域的板的邻近区域内是最高的。 在靠近区域周围的外部区域内的开口的表面分布密度低于接近区域的开口表面分布密度,并且高于冲击区域的表面分布密度。

    Process for preparing alkyl chlorides
    39.
    发明授权
    Process for preparing alkyl chlorides 有权
    制备烷基氯的方法

    公开(公告)号:US07652180B2

    公开(公告)日:2010-01-26

    申请号:US11359696

    申请日:2006-02-23

    CPC classification number: B01J31/181 C07C17/16 C07C19/01

    Abstract: The invention relates to a process for preparing alkyl chlorides by reacting alcohols with gaseous hydrogen chloride in the presence of a catalyst, wherein the catalyst comprises at least one compound of the structure: wherein R1 is a linear alkyl group having from 1 to 20 carbon atoms, R2, R3, and R4 is selected from a hydrogen, an alkyl, an alkenyl, an aralkyl or an alkylaryl group from 1 to 20 carbon atoms, wherein the substituents of R2, R3, and R4 are all identical, are all different or two of the substituents of R2, R3, and R4 type are identical.

    Abstract translation: 本发明涉及一种通过在催化剂存在下使醇与气态氯化氢反应制备烷基氯的方法,其中催化剂包含至少一种结构的化合物:其中R1是具有1-20个碳原子的直链烷基 R2,R3和R4选自1至20个碳原子的氢,烷基,烯基,芳烷基或烷芳基,其中R2,R3和R4的取代基全部相同,都是不同的或 R2,R3和R4型的两个取代基是相同的。

    Continuous process for decarboxylating carboxylic acids
    40.
    发明授权
    Continuous process for decarboxylating carboxylic acids 有权
    羧酸脱羧的连续方法

    公开(公告)号:US07485756B2

    公开(公告)日:2009-02-03

    申请号:US11961109

    申请日:2007-12-20

    CPC classification number: C07C209/68 C07C211/09

    Abstract: A continuous process for decarboxylating carboxylic acids proceeds by I.) initially charging a carbonyl compound as a catalyst in a solvent at reaction temperature, to obtain a catalyst solution; II.) metering a carboxylic acid into the catalyst solution as an aqueous solution, aqueous suspension or as a water-comprising solid, to obtain a reaction mixture; and III.) continuously removing a mixture of CO2, solvent, water and a reaction product or mixture of reaction products from the reaction mixture as a vapor.

    Abstract translation: 羧酸脱羧的连续方法由I.)在反应温度下首先将羰基化合物作为催化剂在溶剂中加入,得到催化剂溶液; II。)将羧酸作为水溶液,水性悬浮液或作为含水固体计量到催化剂溶液中,以获得反应混合物; 和III。)作为蒸气连续地从反应混合物中除去CO 2,溶剂,水和反应产物或反应产物的混合物的混合物。

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