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    Spent caustic (pre)treatment process
    3.
    发明授权
    Spent caustic (pre)treatment process 失效
    废碱（预处理）处理过程

    公开(公告)号：US5885422A

    公开(公告)日：1999-03-23

    申请号：US807873

    申请日：1997-02-26

    申请人： Sabah A. Kurukchi ,  Joseph M. Gondolfe

    发明人： Sabah A. Kurukchi ,  Joseph M. Gondolfe

    IPC分类号： B01D3/14 ,  B01D3/38 ,  C10G19/08 ,  B01D11/04

    CPC分类号： C10G19/08 ,  B01D3/143 ,  B01D3/38

    摘要： A process for pretreating a spent caustic stream prior to oxidation includes countercurrent multi-stage elevated temperature solvent extraction of dissolved organic material from the spent caustic using a solvent to yield a spent caustic raffinate containing only residual amounts of organic solute. The raffinate is steam distilled to remove the residual organic solutes, yielding a pretreated spent caustic stream substantially free of organic material. The pretreated spent caustic is suitable for use in a Kraft paper process or for oxidation prior to recycle or disposal. Solvent extract from the extractor is regenerated in a solvent regenerator having an overhead stream for purging light ends, a bottom stream for purging heavy ends, and a heart-cut side stream for recycling solvent to the extractor. Alternatively, solvent may be taken as a cut from an existing plant process stream, once passed through the multi-stage solvent extraction unit, and then returned to the processing unit of the plant from which it was taken.

    摘要翻译： 用于在氧化之前预处理废碱液的方法包括使用溶剂从废碱中逆流多级高温溶剂萃取溶解的有机物质，产生仅含有剩余量的有机溶质的废碱液残液。 蒸馏塔蒸馏塔以除去残留的有机溶质，得到基本上不含有机物质的经预处理的废碱流。 预处理的废碱适用于牛皮纸工艺或在循环或处理之前进行氧化。 来自萃取器的溶剂萃取物在具有用于吹扫轻馏分的塔顶物流的溶剂再生器，用于净化重馏分的底部流以及用于将溶剂再循环到萃取器中的切断侧流进行再生。 或者，可以将溶剂作为来自现有植物工艺流的切片，一旦通过多级溶剂提取单元，然后返回到从其获取的植物的处理单元。

    PROCESSES AND SYSTEMS FOR DRYING LIQUID BROMINE
    8.
    发明申请
    PROCESSES AND SYSTEMS FOR DRYING LIQUID BROMINE 有权
    用于干燥液体溴的方法和系统

    公开(公告)号：US20120245399A1

    公开(公告)日：2012-09-27

    申请号：US13053540

    申请日：2011-03-22

    申请人： Sabah A. Kurukchi ,  Yijun Liu ,  Anand Moodley

    发明人： Sabah A. Kurukchi ,  Yijun Liu ,  Anand Moodley

    IPC分类号： C07C17/00 ,  C07C1/00

    CPC分类号： C01B7/096 ,  C07C1/30 ,  C07C17/10 ,  C07C2529/89 ,  C07C19/075 ,  C07C11/00

    摘要： Processes and systems for drying liquid bromine utilizing two fractionators to produce a substantially dry liquid bromine stream and a substantially bromine-free water stream. Wet bromine liquid may be conveyed to a first fractionator wherein a substantially dry bromine liquid is produced, while a vapor stream from the first fractionator may be condensed into a first liquid phase comprising bromine saturated with water and a second liquid phase comprising water saturated with bromine. The water saturated with bromine may be conveyed to a second fractionator to produce at least substantially bromine-free water.

    摘要翻译： 使用两个分馏器干燥液体溴以产生基本上干燥的液体溴流和基本上不含溴的水流的方法和系统。 可以将湿溴液体输送到第一精馏塔，其中产生基本上干燥的溴液体，而来自第一精馏塔的蒸气流可以冷凝成包含饱和水的溴的第一液相和包含饱和溴的水的第二液相 。 用溴饱和的水可以被输送到第二分馏器以产生至少基本上无溴的水。

    Processes and systems for drying liquid bromine
    9.
    发明授权
    Processes and systems for drying liquid bromine 有权
    干燥液体溴的方法和系统

    公开(公告)号：US08815050B2

    公开(公告)日：2014-08-26

    申请号：US13053540

    申请日：2011-03-22

    申请人： Sabah A. Kurukchi ,  Yijun Liu ,  Anand Moodley

    发明人： Sabah A. Kurukchi ,  Yijun Liu ,  Anand Moodley

    IPC分类号： B01D1/00 ,  B01D12/00 ,  F26B7/00 ,  F26B3/00 ,  C07C17/10 ,  C07C1/30 ,  C01B7/09

    CPC分类号： C01B7/096 ,  C07C1/30 ,  C07C17/10 ,  C07C2529/89 ,  C07C19/075 ,  C07C11/00

    摘要： Processes and systems for drying liquid bromine utilizing two fractionators to produce a substantially dry liquid bromine stream and a substantially bromine-free water stream. Wet bromine liquid may be conveyed to a first fractionator wherein a substantially dry bromine liquid is produced, while a vapor stream from the first fractionator may be condensed into a first liquid phase comprising bromine saturated with water and a second liquid phase comprising water saturated with bromine. The water saturated with bromine may be conveyed to a second fractionator to produce at least substantially bromine-free water.

    摘要翻译： 使用两个分馏器干燥液体溴以产生基本上干燥的液体溴流和基本上不含溴的水流的方法和系统。 可以将湿溴液体输送到第一精馏塔，其中产生基本上干燥的溴液体，而来自第一精馏塔的蒸气流可以冷凝成包含饱和水的溴的第一液相和包含饱和溴的水的第二液相 。 用溴饱和的水可以被输送到第二分馏器以产生至少基本上无溴的水。