Improvements in or relating to Rotary Pumps.

    公开(公告)号:GB111635A

    公开(公告)日:1917-12-06

    申请号:GB719817

    申请日:1917-05-18

    Inventor: O'CONNOR THOMAS

    Abstract: 111,635. O'Connor, T. May 18, 1917. Movable - abutment type; discharge and suction pipes and passages for pumps; packing drums. - Rotary pumps of the type having spiral passage ways in the opposite end portions have rotary abutments 50 of less diameter than the drums 15, and are provided with recesses 62 of substantially the same width as the opening into the abutment chamber and the same curvature as the pump casing. The drum and casing are geared together to rotate at the same speed so that the peripheral surfaces in contact have different speeds. The piston blocks 43 are shaped so as to give a slight clearance between the forward ends thereof and the bottom of the recesses, and are formed with transverse water traps 45.

    TRITYL CHLORIDE RECOVERY
    8.
    发明申请

    公开(公告)号:WO2008070043A3

    公开(公告)日:2008-06-12

    申请号:PCT/US2007/024780

    申请日:2007-12-04

    Abstract: Methods of recovering a triarylmethyl halide from a sucrose derivatization process include the steps of (a) forming a mixture including 1) a triarylmethylated sucrose derivative including at least one triarylmethyl substituent and at least one acyl substituent on the sucralose, 2) triarylmethylated sucrose ester byproducts, and 3) an amine; (b) separating from the output of step (a) i) the triarylmethylated sucrose derivative, and ii) a mixture including the triarylmethylated sucrose ester byproducts and the amine; (c) removing the amine from the mixture of step (b) ii); (d) contacting the product of step (c) with hydrogen halide to cleave triarylmethyl groups and thereby form a crude triarylmethyl halide component; (e) contacting the crude triarylmethyl halide component with hydrogen halide to form a purified triarylmethyl halide component; and (f) recovering the triarylmethyl halide from the output of step (e).

    TRITYL CHLORIDE RECOVERY
    9.
    发明申请
    TRITYL CHLORIDE RECOVERY 审中-公开
    三氯乙烯回收

    公开(公告)号:WO2008070043A2

    公开(公告)日:2008-06-12

    申请号:PCT/US2007024780

    申请日:2007-12-04

    CPC classification number: C07H5/02 C07C17/395 Y02P20/582 C07C22/04

    Abstract: Methods of recovering a triarylmethyl halide from a sucrose derivatization process include the steps of (a) forming a mixture including 1) a triarylmethylated sucrose derivative including at least one triarylmethyl substituent and at least one acyl substituent on the sucralose, 2) triarylmethylated sucrose ester byproducts, and 3) an amine; (b) separating from the output of step (a) i) the triarylmethylated sucrose derivative, and ii) a mixture including the triarylmethylated sucrose ester byproducts and the amine; (c) removing the amine from the mixture of step (b) ii); (d) contacting the product of step (c) with hydrogen halide to cleave triarylmethyl groups and thereby form a crude triarylmethyl halide component; (e) contacting the crude triarylmethyl halide component with hydrogen halide to form a purified triarylmethyl halide component; and (f) recovering the triarylmethyl halide from the output of step (e).

    Abstract translation: 从蔗糖衍生化方法回收三芳基甲基卤化物的方法包括以下步骤:(a)形成混合物,其包括1)三酰基甲基化蔗糖衍生物,其包含至少一个三芳基甲基取代基和至少一个酰氯基取代基;二)三芳基甲基化蔗糖酯副产物 ,和3)胺; (b)从步骤(a)的输出分离i)三芳基甲基化蔗糖衍生物,和ii)包含三芳基甲基化蔗糖酯副产物和胺的混合物; (c)从步骤(b)ii)的混合物中除去胺; (d)使步骤(c)的产物与卤化氢接触以裂解三芳基甲基,从而形成粗三芳基甲基卤化物组分; (e)将粗三芳基甲基卤化物组分与卤化氢接触以形成纯化的三芳基甲基卤化物组分; 和(f)从步骤(e)的输出中回收三芳基甲基卤化物。

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