Process for the chromatographic separation of a mixture of polyglycerols
    4.
    发明授权
    Process for the chromatographic separation of a mixture of polyglycerols 失效
    聚甘油混合物的色谱分离方法

    公开(公告)号:US5431822A

    公开(公告)日:1995-07-11

    申请号:US197436

    申请日:1994-02-15

    摘要: A description is given of a process for the separation of at least one constituent from a mixture containing at least two polyglycerols having consecutive degrees of polymerization from 2 to 10, in which said mixture is passed into at least one column lined with an adsorbent particular phase through which flows a liquid eluent, said phase consisting of a cationic organic resin such as a styrene-divinyl benzene copolymer or an anionic resin, or a mineral phase chosen from among silicas, aluminas and zeolites in normal form or modified by grafting, said liquid eluent consisting of an aqueous phase to which is optionally added a strong acid. The process described can be performed continuously or batchwise and in simulated counter-current (SCC) or simulated cocurrent manner.

    摘要翻译: 描述了将至少一种成分从含有至少两种具有连续聚合度的聚甘油的混合物分离为2至10的方法,其中所述混合物通入至少一个内衬有吸附剂特定相的柱 流过液体洗脱液,所述相由阳离子有机树脂如苯乙烯 - 二乙烯基苯共聚物或阴离子树脂或选自二氧化硅,氧化铝和正常形式的沸石或通过接枝改性的矿物相组成,所述液体 由水相组成的洗脱液任选地加入强酸。 所描述的过程可以连续地或分批地进行,并以模拟逆流(SCC)或模拟并流方式进行。

    Continuous process and device for the chromatographic separation of a
mixture of at least three constituents into three purified effluents by
means of a single solvent at two different temperatures and/or at two
different pressures
    5.
    发明授权
    Continuous process and device for the chromatographic separation of a mixture of at least three constituents into three purified effluents by means of a single solvent at two different temperatures and/or at two different pressures 失效
    连续工艺和装置,用于通过在两种不同温度下和/或两种不同压力下的单一溶剂将至少三种组分的混合物的色谱分离成三种纯化的液体

    公开(公告)号:US5114590A

    公开(公告)日:1992-05-19

    申请号:US573564

    申请日:1990-08-28

    摘要: A process and a device are described for the continuous separation, in the fluid phase, of a mixture of at least three constituents into three fractions.A so-called simulated countercurrent technique is used in a separation column packed with a sorbent having five zones 6, 5, 4, 3 and 2 with different functions, and the following sequence of steps is performed: so-called strong solvent S.sub.2 is introduced, a strong solvent extract E.sub.2 is removed, the same solvent is introduced but at a lower temperature and/or at a lower pressure (so-called weak solven S.sub.1), weak solvent extract E.sub.1 is drawn off, the mixture to be separated is introduced, weak solvent raffinate R is drawn off and a stream Roy is recycled alternately to the feed for strong solvent S.sub.2 and then to the feed for weak solvent S.sub.1. A stream coming from zone 6 is sent alternately to an outlet for storng solvent extract E.sub.2 and then to the inlet of the fifth zone. The various feeds and draw-offs are periodically caused to advance synchronously through the column.Application especially to the separation of glucose, xylose and arabinose and to the purification of water containing phenol, paracresol and toluene.

    摘要翻译: 描述了在流体相中将至少三种成分的混合物连续分离成三个部分的方法和装置。 在具有不同功能的具有五个区域6,5,4,3和2的吸附剂的分离塔中使用所谓的模拟逆流技术,并且执行以下步骤顺序:引入所谓的强溶剂S2 ,除去强溶剂提取物E2,引入相同的溶剂,但在较低温度和/或较低压力(所谓的弱溶剂S1)下,抽出弱溶剂提取物E1,引入待分离的混合物 ,抽出弱溶剂萃余液R,并将流Roy交替循环进入强溶剂S2的进料,然后进入弱溶剂S1的进料。 来自区域6的料流被交替地送到用于储存溶剂提取物E2的出口,然后到达第五区域的入口。 周期性地引导各种饲料和抽出物通过色谱柱同步进行。 特别适用于分离葡萄糖,木糖和阿拉伯糖,以及纯化含酚,对甲酚和甲苯的水。

    Continuous process and apparatus for chromatographic separation of a
mixture of at least three constituents into three purified effluents
using two solvents
    6.
    发明授权
    Continuous process and apparatus for chromatographic separation of a mixture of at least three constituents into three purified effluents using two solvents 失效
    使用两种溶剂将三种三种成分混合物混合分离成三种纯化液体的连续方法和装置

    公开(公告)号:US5093004A

    公开(公告)日:1992-03-03

    申请号:US573582

    申请日:1990-08-28

    摘要: A description is given of a process and an apparatus for continuous separation in fluid phase of a mixture of at least three constituents into three fractions. A technique is used, known as the simulated countercurrent technique, in a separation column which is filled with sorbent and has 6 zones 6, 5, 4, 3, 2 and 1 which have different functions, and the following sequence of steps is carried out: strong solvent S.sub.2 is introduced, an extract E.sub.2 with strong solvent is removed, weak solvent S.sub.1 is introduced. The extract with weak solvent E.sub.1 is drawn off, the separating mixture is introduced, refined substance is drawn off with weak solvent R, rinsing solvent (S.sub.1) is introduced, a current Rcy is recycled alternatingly towards the feed of strong solvent S.sub.2 and then towards the feed of weak solvent S.sub.1. A current coming from zone 6 is sent alternatingly to an outlet for the extract with strong solvent E.sub.2, then towards the intake of the fifth zone. The various feeds and substances removed are periodically advanced synchronously through the column. Application in particular for the separation of glucose, xylose and arabinose and for the separation of paraxylene, orthoxylene and metaxylene and ethyl benzene.

    摘要翻译: 给出了将至少三种成分的混合物在液相中连续分离成三部分的方法和装置的描述。 使用称为模拟逆流技术的技术,其在填充有吸附剂的分离塔中,并具有6个具有不同功能的区域6,5,4,3,2和1,并且执行以下步骤顺序 :引入强溶剂S2,除去具有强溶剂的提取物E2,引入弱溶剂S1。 抽出具有弱溶剂E1的萃取液,引入分离混合物,用弱溶剂R抽出精制物质,引入漂洗溶剂(S1),将当前的Rcy交替地朝向强溶剂S2的进料再循环,然后朝向 弱溶剂S1的进料。 来自区域6的电流交替地发送到用强溶剂E2提取的出口,然后朝向第五区域的入口。 除去的各种饲料和物质通过柱同步定期前进。 特别适用于分离葡萄糖,木糖和阿拉伯糖,并用于分离对二甲苯,邻二甲苯和间二甲苯和乙苯。