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    Acid tolerant polymeric membrane and process for the recovery of acid using polymeric membranes
    2.
    发明申请
    Acid tolerant polymeric membrane and process for the recovery of acid using polymeric membranes 审中-公开
    耐酸聚合物膜和使用聚合物膜回收酸的方法

    公开(公告)号：US20050173345A1

    公开(公告)日：2005-08-11

    申请号：US10947019

    申请日：2004-09-22

    申请人： Bhupender Minhas ,  Dennis Peiffer ,  David Dalrymple

    发明人： Bhupender Minhas ,  Dennis Peiffer ,  David Dalrymple

    IPC分类号： B01D61/02 ,  B01D61/24 ,  B01D61/36 ,  B01D61/58 ,  B01D67/00 ,  B01D71/38 ,  B01D71/44 ,  B01D71/82 ,  C01B17/90 ,  C01B17/92 ,  C10G31/11 ,  C10G33/00 ,  B01D61/00

    CPC分类号： B01D67/0006 ,  B01D61/02 ,  B01D61/243 ,  B01D61/246 ,  B01D61/362 ,  B01D61/58 ,  B01D67/0093 ,  B01D71/38 ,  B01D71/44 ,  B01D2323/30 ,  B01D2325/30 ,  C01B17/902 ,  C01B17/905 ,  C01B17/92 ,  C10G31/11 ,  C10G33/00

    摘要： A crosslinked polymeric polyvinyl sulfate membrane or crosslinked copolymer polyvinyl sulfate and polyvinyl alcohol membrane, suitable for use in an acid environment, and its use for recovering acid from a feed mixture comprising acid, hydrocarbons and water, the method comprising: processing said mixture using a first polymeric membrane to form a first retentate containing a substantially greater concentration of hydrocarbons than said feed mixture and a first permeate containing a substantially greater concentration of acid and water than said mixture, said first polymeric membrane being selectively permeable to the acid and water over the hydrocarbons found in the mixture, and recovering the first permeate; said first permeate can be processed further using a second water reduction mean to form a first stream containing a substantially greater concentration of acid than said first permeate and a second stream containing a substantially greater concentration of water than said first permeate, said water reduction step may be a second polymeric membrane being selectively permeable to the water over the acid in said first permeate; and recovering said second stream or retentate.

    摘要翻译： 适用于酸性环境的交联聚合物聚乙烯硫酸盐膜或交联共聚物聚乙烯硫酸盐和聚乙烯醇膜，以及其用于从含有酸，烃和水的进料混合物中回收酸的用途，所述方法包括：使用 第一聚合物膜以形成含有比所述进料混合物大得多的烃浓度的第一渗余物和含有比所述混合物大得多的酸和水浓度的第一渗透物，所述第一聚合物膜可选择性地透过酸和水， 在混合物中发现的烃，并回收第一渗透物; 可以使用第二减水装置进一步处理所述第一渗透物，以形成含有比所述第一渗透物更大浓度的酸的第一物流和含有比所述第一渗透物大得多的水浓度的第二物流，所述减水步骤可以 是第二聚合物膜，其在所述第一渗透物中的酸上选择性渗透水; 并回收所述第二流或滞留物。

    Membrane and process for the recovery of acid
    5.
    发明申请
    Membrane and process for the recovery of acid 有权
    用于回收酸的膜和工艺

    公开(公告)号：US20060144792A1

    公开(公告)日：2006-07-06

    申请号：US11369613

    申请日：2006-03-07

    申请人： Bhupender Minhas ,  Ramon Strauss ,  Tomas Melli ,  John Hollenbach

    发明人： Bhupender Minhas ,  Ramon Strauss ,  Tomas Melli ,  John Hollenbach

    IPC分类号： B01D61/00

    CPC分类号： B01D71/28 ,  B01D61/025 ,  B01D61/027 ,  B01D61/362 ,  B01D61/58 ,  B01D71/38 ,  B01D2317/022 ,  B01D2325/30 ,  C01B17/88

    摘要： A crosslinked polymeric polyvinyl sulfate membrane or crosslinked copolymer polyvinyl sulfate and polyvinyl alcohol membrane, or Nafion® or polytetrafluoroethylene suitable for use in an acid environment, and its use for recovering or reconstituting acid from a feed mixture comprising predominantly acid and water, the method comprising: processing said mixture using a first polymeric membrane such as Nafion® or polytetrafluoroethylene (“PTFE”) for example, to form a first retentate containing a substantially greater concentration of acid than said feed mixture and a first permeate containing a substantially greater concentration of water than said mixture, said first polymeric membrane selectively excluding permeance of the acid over the water found in the mixture, and recovering the first retentate; said first retentate can be processed further using a second water reduction membrane system mean to form a retentate stream containing a substantially greater concentration of acid than the first retentate and a second stream containing a substantially greater concentration of water than said first retentate; and recovering the acid retentate.

    摘要翻译： 交联聚合物聚乙烯硫酸盐膜或交联共聚物聚乙烯硫酸盐和聚乙烯醇膜，或适用于酸性环境的聚四氟乙烯及其用于从主要含有酸和水的进料混合物中回收或重构酸的用途， 方法包括：使用例如Nafion或聚四氟乙烯（“PTFE”）的第一聚合物膜来处理所述混合物，以形成含有比所述进料混合物显着更高浓度的酸的第一渗余物和含有基本上 所述第一聚合物膜选择性地排除所述混合物中存在的水的渗透性，并回收所述第一渗余物; 可以使用第二减水膜系统进一步处理所述第一渗余物，所述第二减水膜系统形成含有比所述第一滞留物大得多的酸浓度的滞留物流和含有比所述第一渗余物大得多的水的浓度的第二流; 并回收酸滞留物。