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    • 21. 发明公开
    • DISCONTINUOUS COUNTERCURRENT CHROMATOGRAPHIC PROCESS AND APPARATUS
    • 不连续逆流色谱过程和设备
    • EP0877936A1
    • 1998-11-18
    • EP96939008.0
    • 1996-11-12
    • MERCK PATENT GmbH
    • GRILL, M., CharlesHAMPTON, W., Thomas
    • G01N30B01D15
    • B01D15/1814B01D15/1857B01D15/1864G01N30/44
    • A preparative chromatographic cyclical process comprising, at steady state: establishing a figure-of-eight circulating chromatographic profile between two chromatographic columns with the provision that said chromatographic profile never passes through a pump; discontinuously and periodically injecting a sample comprising at least two components, into said circulating profile; and collecting, discontinuously and periodically, at least two enriched fractions from said circulating profile, the apparatus for conducting this process comprising only two chromatographic columns, at least one solvent pump, and injection pump, two 4-way valves, and conduit communicating said columns and the two 4-way valves in the form of a figure-of-eight pattern without traversing a pump, and conduit communicating said at least one solvent pump and at least one of said columns.
    • 一种制备色谱循环方法,其包括:在稳定状态下:在两个色谱柱之间建立八数循环色谱分布图,条件是所述色谱分布图不会通过泵; 不连续地和周期性地将包含至少两种组分的样品注入到所述循环分布中; 并且不连续地且周期性地从所述循环分布中收集至少两种富集级分,用于进行该方法的装置仅包括两个色谱柱,至少一个溶剂泵和喷射泵,两个四通阀以及连通所述柱 以及八个八字形式的两个四通阀不经过泵,以及连通所述至少一个溶剂泵和至少一个所述柱的导管。
    • 28. 发明公开
    • Process for the separation by adsorption of 2,6- or 3,5-diethyltoluene from a mixture thereof with another diethyltoluene isomer
    • 一种用于从与另一Diethyltoluolisomer它们的混合物通过2,6-或3,5-二乙基的吸附分离过程。
    • EP0464277A1
    • 1992-01-08
    • EP90307281.7
    • 1990-07-03
    • UOP
    • Zinnen, Herman A.
    • C07C15/02C07C7/13
    • B01D15/08B01D15/1814C07C7/13C07C15/02
    • 3,5-diethyltoluene (3,5-DET) and/or 2,6-diethyltoluene (2,6-DET) is selectively separated from a feed mixture comprising at least one isomer from the group 3,5-DET or 2,6-DET and at least one other DET isomer by contacting the feed mixture at adsorption conditions with an adsorbent selected from the Groups consisting of A) X zeolite exchanged with a potassium cation; B) X zeolite exchanged with sodium or copper or Y zeolite exchanged with copper, sodium, barium or calcium; and C) X zeolite exchanged with barium or lithium or with potassium and barium or Y zeolite exchanged with potassium, sodium, barium or calcium, thereby selectively adsorbing one of the DET isomers contained in the feed; thereby selectively adsorbing one or more of said DET isomers and removing one or more relatively non-adsorbed isomer(s) from contact with the adsorbent to form a raffinate stream depleted in the adsorbed isomer relative to feed and thereafter contacting the rich adsorbent with a desorbent comprising a monocyclic alkyl-substituted aromatic hydrocarbon at desorption conditions effective to form an extract stream enriched in the adsorbed isomer relative to the feed.
    • 3.5二乙基(3,5- DET)和/或2,6-二乙基(2,6- DET)被选择性地从供料混合物选自3,5- DET或2,其包含至少一种异构体分离, 6-DET以及通过在从所述组包括A)X沸石与钾交换的阳离子选择吸附剂与接触在吸附条件下的进料混合物中的至少一种其它DET异构体; B)X沸石交换了钠或铜或Y型沸石与铜,钠,钡或钙交换的; 和C)X沸石交换了钡或锂或钾和钡或Y型沸石与钾,钠,钡或钙,从而选择性地吸附进料中所含的DET异构体之一交换的; 从而选择性地吸附。所述DET异构体的一个或多个以及去除一个或多个相对非吸附从与吸附剂接触的异构体(一个或多个),以形成吸附异构体相对于在贫萃余液料流喂后,用解吸剂接触富吸附剂 包含有效解吸条件下的单环烷基芳烃substituiertem以形成提取吸附的异构体相对于进料的富含流。
    • 29. 发明公开
    • Recycle chromatograph with supercritical fluid
    • Umlaufchromatograph mitüberkritischem流体。
    • EP0309380A2
    • 1989-03-29
    • EP88710032.9
    • 1988-09-26
    • JASCO CORPORATION
    • Saito, MuneoYamauchi, Yoshio
    • B01D15/08
    • B01D15/40B01D15/1814G01N30/02
    • It is an object to provide a recycle chromatograph with supercritical fluid mobile phase for separating a sample into components by recycling a mobile phase which includes modifier solvent for the purpose of taking a desired component.
      It is structured in such a manner that a recycling pump (10), a column (14), a detector (16), and a three-way valve (18) are connected in a sequential order as described above to form a closed loop which acts as a recycle flow line. A back-pressure regulator (20) is connected to the remainder port (C) of this three-way valve (18), and a mobile phase supplying device (30, 38, 30A, 38A, 48) for supplying the mobile phase under a predetermined pressure is connected to a flow line between the three-way valve (18) and the recycling pump (10).
      By means of this mobile phase supplying device and the recycle closed loop (the column pressure drop Δ p)/(column plate number) can be reduced, whereupon the column effective plate number can be increased. Thus, a sufficient resolution rate for fractionating a component can be obtained after appropriate recycling times.
      Furthermore, by combining the mobile phase supplying device (30, 38, 30A, 38A, 48) and the back-pressure regulator (20), the internal pressures in the column and the detector can be kept above the critical pressure even if unnecessary components are being removed or a necessary component is being fractionated. As a result of which fractionation can be performed.
    • 本发明的目的是提供一种具有超临界流体流动相的再循环色谱仪,用于通过循环包含改性剂溶剂的流动相将样品分离成组分,以获得所需组分。 以如上所述的顺序连接回收泵(10),塔(14),检测器(16)和三通阀(18)的结构,形成闭环 其充当循环流动线。 背压调节器(20)连接到该三通阀(18)的剩余端口(C),以及流动相供应装置(30,38,30A,38A,48) 预定压力连接到三通阀(18)和回收泵(10)之间的流动管线。 通过该流动相供给装置和再循环闭环(柱压降DELTA p)/(塔板数)可以减少,从而可以增加柱有效板数。 因此,在适当的回收时间之后,可以获得用于分馏成分的足够的分离率。 此外,通过组合流动相供给装置(30,38,30A,38A,48)和背压调节器(20),即使不需要的组分,也可以将柱和检测器中的内部压力保持在临界压力以上 正在被去除或必要的组件被分馏。 结果可以进行分馏。
    • 30. 发明公开
    • Liquid chromatography process
    • 液相色谱法。
    • EP0067372A1
    • 1982-12-22
    • EP82104869.1
    • 1982-06-03
    • Asahi Kasei Kogyo Kabushiki Kaisha
    • Tanouchi, MasatoshiAkiyama, Hirohumi
    • B01D15/08G01N31/08
    • G01N30/00B01D15/1814B01D53/025C07C7/13C10G25/03G01N30/80C07C15/08
    • An adsorptive separation method capable of effectively separating the desired component from a mixture containing the same at a high purity and a high recovery ratio, and easily which copes with scale-up of the apparatus is disclosed. This method comprises alternately supplying a starting mixture A, comprising a plurality of substances, and a desorbent into a column packed with an adsorbent, treating to form and move an adsorption band of the starting mixture A and recovering the intended component at a purity higher than the aimed purity from an eluate, wherein after the entire amount of the intended component passing through the column is increased over the amount of the intended component in the starting mixture A and the intended component is separated and recovered, the portion B which is at least a part of the remaining intended component-containing portion, and in which the desorbent is separated and removed to a concentration lower than the desorbent concentration in the starting mixture A and the intended component is contained at a concentration higher than the concentration of the intended component in the starting mixture A is mixed with the starting material A and supplied to the column or said portion B and the starting mixture A are supplied to the column one by one, and then, the desorbent is supplied successively.