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    Metal-ligand complex catalyzed processes
    9.
    发明授权
    Metal-ligand complex catalyzed processes 有权
    金属 - 配体络合物催化方法

    公开(公告)号：US06303830B1

    公开(公告)日：2001-10-16

    申请号：US09526638

    申请日：2000-03-15

    申请人： John Nicholas Argyropoulos ,  Jeffrey Scott Kanel ,  Michael Leo Tulchinsky ,  David James Miller ,  Donald Lee Morrison ,  Paul Foley ,  David Robert Bryant

    发明人： John Nicholas Argyropoulos ,  Jeffrey Scott Kanel ,  Michael Leo Tulchinsky ,  David James Miller ,  Donald Lee Morrison ,  Paul Foley ,  David Robert Bryant

    IPC分类号： C07C4550

    CPC分类号： C07B63/00 ,  C07C67/58 ,  Y02P20/582 ,  C07C69/716

    摘要： This invention relates to a process for separating one or more organophosphorus ligand degradation products, one or more reaction byproducts and one or more formylester products from a reaction product fluid comprising one or more unreacted unsaturated ester reactants, a metal-organophosphorus ligand complex catalyst, optionally free organophosphorus ligand, said one or more organophosphorus ligand degradation products, said one or more reaction byproducts, said one or more products, a polar solvent and a nonpolar solvent by phase separation wherein(i) the selectivity of the polar phase for the organophosphorus ligand with respect to the one or more products is expressed by a partition coefficient ratio Ef1 which is a value greater than about 2.5, (ii) the selectivity of the polar phase for the organophosphorus ligand with respect to the one or more organophosphorus ligand degradation products is expressed by a partition coefficient ratio Ef2 which is a value greater than about 2.5, and (iii) the selectivity of the polar phase for the organophosphorus ligand with respect to the one or more reaction byproducts is expressed by a partition coefficient ratio Ef3 which is a value greater than about 2.5.

    摘要翻译： 本发明涉及一种从包含一种或多种未反应的不饱和酯反应物，金属 - 有机磷配位体配合物催化剂，任选的一种或多种反应产物流体的反应产物流体中分离一种或多种有机磷配体降解产物，一种或多种反应副产物和一种或多种甲酰酯产物的方法 所述一种或多种有机磷配体降解产物，所述一种或多种反应副产物，所述一种或多种产物，极性溶剂和非极性溶剂通过相分离，其中（i）极性相对于有机磷配体的选择性 对于一种或多种产物，由分配系数比Ef1表示，该分配系数比Ef1大于约2.5，（ii）极性相对于一种或多种有机磷配体降解产物的有机磷配体的选择性为 由大于约2.5的值的分配系数比Ef2表示，a d（iii）极性相对于一种或多种反应副产物的有机磷配体的选择性由分配系数比Ef3表示，该分配系数比Ef3是大于约2.5的值。

    Method for dewatering microalgae with a bubble column
    10.
    发明授权
    Method for dewatering microalgae with a bubble column 失效
    用泡罩塔对微藻进行脱水的方法

    公开(公告)号：US5910254A

    公开(公告)日：1999-06-08

    申请号：US770284

    申请日：1996-12-20

    申请人： Scott Arthur Guelcher ,  Jeffrey Scott Kanel

    发明人： Scott Arthur Guelcher ,  Jeffrey Scott Kanel

    IPC分类号： C12M1/33 ,  C02F1/24 ,  C12N1/02 ,  C12N1/06 ,  C12N1/12 ,  C12P23/00 ,  C12R1/89 ,  B03D1/02

    CPC分类号： C12P23/00 ,  C12M47/10 ,  C12N1/02 ,  Y02W10/37 ,  Y10S435/946

    摘要： A process for dewatering an aqueous suspension of microalgae is disclosed in which the aqueous suspension of the algae is introduced into a bubble column or a modified bubble column for generating a froth of bubbles and adsorbed algal cells that can be separated from the aqueous suspension. In one advantageous embodiment, the bubble column is a multi-stage loop-flow flotation column that has three loop-flow zones, each of which is defined by a draft tube concentrically mounted in the column to divide each loop-flow zone into a riser and the downcomer. Fine bubbles of gas and brine are in cocurrent upward flow in the riser and in cocurrent downward flow the downcomer. A higher gas holdup is promoted in the riser than in the downcomer, thereby circulating the brine in loop-flow upwardly through the riser and downwardly through the downcomer. Liquid communication between adjacent loop-flow zones is substantially eliminated. A froth enriched in algae is generated that can be separated from the aqueous suspension. The process has application in the recovery of mixed carotenoids from Dunaliella salina.

    摘要翻译： 公开了一种用于脱水微藻水悬浮液的方法，其中将藻类的水性悬浮液引入气泡塔或改性泡罩塔中，以产生泡沫泡沫，并吸附可与水悬浮液分离的藻细胞。 在一个有利的实施方案中，泡罩塔是多级环流浮选塔，其具有三个循环流动区域，每个循环流动区域由同心安装在塔中的引流管限定，以将每个环流区域分成立管 和降液管。 气体和盐水的细小气泡在提升管中并流向上流动并且同时向下流动降液管。 在提升管中比在降液管中促进更高的气体滞留，从而使盐水循环向上流动通过提升管并向下通过降液管。 基本上消除了相邻环流区之间的液体连通。 产生富含藻类的泡沫，其可与水悬浮液分离。 该方法可用于从杜氏盐藻中回收混合的类胡萝卜素。