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    Pressurized Forward Osmosis Process and System
    2.
    发明申请
    Pressurized Forward Osmosis Process and System 有权
    加压正向渗透过程与系统

    公开(公告)号：US20150175447A1

    公开(公告)日：2015-06-25

    申请号：US14572956

    申请日：2014-12-17

    Applicant: Arup SenGupta ,  Robert Creighton ,  Ryan Smith

    Inventor： Arup SenGupta ,  Robert Creighton ,  Ryan Smith

    IPC: C02F1/44 ,  B01D61/00

    CPC classification number: C02F1/445 ,  B01D61/002 ,  B01D61/005 ,  B01D61/58 ,  B01D2311/25 ,  C01F5/02 ,  C01F5/14 ,  C01F5/20 ,  C01F5/24 ,  C02F1/44 ,  C02F1/442 ,  C02F1/68 ,  C02F2001/007 ,  C02F2103/007 ,  C02F2103/08 ,  C02F2103/32 ,  C02F2103/343 ,  C02F2209/03 ,  C02F2301/06 ,  Y02A20/131

    Abstract: A pressurized forward osmotic separation process is disclosed. Generally there are two processes described. One process involves the concentration of a target solute in the first solution; the other process involves the extraction of a solvent from a first solution both by a second solution comprising of water and soluble gas or water, soluble gas, and a compound by creating an osmotic concentration gradient across the semi permeable membrane. The first solution is under pressure from an inert gas and the second solution is under pressure from a soluble gas with equal system pressures greater than 1 atmosphere. The increase or decrease of partial pressure of the soluble gas in the second solution increases or decreases the chemical potential of the second solution to achieve different solution properties. The soluble gas may be carbon dioxide and the compound may be magnesium hydroxide.

    Abstract translation: 公开了一种加压正向渗透分离方法。 通常有两个过程描述。 一个过程涉及在第一溶液中浓缩目标溶质; 另一方法涉及通过在半渗透膜上产生渗透浓度梯度，通过包含水和可溶性气体或水，可溶性气体和化合物的第二溶液从第一溶液中提取溶剂。 第一溶液处于来自惰性气体的压力下，第二溶液处于来自具有大于1个大气压的系统压力的可溶性气体的压力下。 第二溶液中可溶性气体的分压的增加或减少增加或减少第二溶液的化学势以达到不同的溶液性质。 可溶性气体可以是二氧化碳，化合物可以是氢氧化镁。

    Selective removal of phosphates and chromates from contaminated water by ion exchange
    4.
    发明授权
    Selective removal of phosphates and chromates from contaminated water by ion exchange 有权
    通过离子交换从污染水中选择性去除磷酸盐和铬酸盐

    公开(公告)号：US6136199A

    公开(公告)日：2000-10-24

    申请号：US206446

    申请日：1998-12-07

    Applicant: Arup SenGupta ,  Dongye Zhao

    Inventor： Arup SenGupta ,  Dongye Zhao

    IPC: B01J41/04 ,  B01J45/00 ,  C02F1/42

    CPC classification number: B01J41/04 ,  B01J45/00 ,  C02F1/42 ,  Y10S210/906 ,  Y10S210/913

    Abstract: Phosphates and chromates are selectively removed from contaminated water by a new class of sorbent, referred to as a Polymeric Ligand Exchanger (PLE). The exchanger bed comprising a styrene-divinylbenzene or polymethacrylate matrix having an electrically neutral chelating functional group with nitrogen or oxygen donor atoms, and a Lewis-acid type metal cation, such as copper, bonded to the chelating functional group in a manner that the positive charges of the metal cation are not neutralized. PLEs are very selective toward phosphates and chromates, chemically stable, and also amenable to efficient regeneration.

    Abstract translation: 磷酸盐和铬酸盐通过称为聚合配体交换剂（PLE）的新类型的吸附剂从污染的水中选择性地去除。 交换床包含具有带有氮或氧供体原子的电中性螯合官能团的苯乙烯 - 二乙烯基苯或聚甲基丙烯酸甲酯基质，以及螯合官能团的路易斯酸型金属阳离子如铜， 不中和金属阳离子的电荷。 PLE对磷酸盐和铬酸盐非常有选择性，化学稳定，并且还适于有效的再生。

    Method of manufacture and use of hybrid anion exchanger for selective removal of contaminating ligands from fluids
    5.
    发明申请
    Method of manufacture and use of hybrid anion exchanger for selective removal of contaminating ligands from fluids 有权
    用于从流体中选择性去除污染配体的杂交阴离子交换剂的制造和使用方法

    公开(公告)号：US20050156136A1

    公开(公告)日：2005-07-21

    申请号：US10925600

    申请日：2004-08-24

    Applicant: Arup SenGupta ,  Luis Cumbal

    Inventor： Arup SenGupta ,  Luis Cumbal

    IPC: B01J20/06 ,  B01J41/14 ,  C02F1/42 ,  C11D7/54

    CPC classification number: C02F1/42 ,  B01J20/06 ,  B01J41/14 ,  C02F1/281 ,  C02F2001/422 ,  C02F2101/103 ,  C02F2101/22 ,  C02F2103/06

    Abstract: Polymeric anion exchangers are used as host materials in which hydrated Fe(III) Oxides (HFO) are irreversibly dispersed within the exchanger beads. Since the anion exchangers have positively charged quaternary ammonium functional groups, anionic ligands such as arsenates, chromates, oxalates, phosphates, phthalates can permeate in and out of the gel phase and are not subjected to the Donnan exclusion effect. Consequently, anion exchanger-supported HFO micro particles exhibit significantly greater capacity to remove arsenic and other ligands in comparison with cation exchanger supports. Loading of HFO particles is carried out by preliminary loading of the anion exchange resin with an oxidizing anion such as MnO4− or OCl−, followed by passage of a Ferrous Sulfate solution through the resin.

    Abstract translation: 聚合阴离子交换剂用作其中水合的Fe（III）氧化物（HFO）不可逆地分散在交换剂珠粒内的主体材料。 由于阴离子交换剂具有带正电荷的季铵官能团，所以阴离子配体例如砷酸盐，铬酸盐，草酸盐，磷酸盐，邻苯二甲酸盐可渗入和流出凝胶相，并且不会受到唐纳排斥效应。 因此，与阳离子交换剂载体相比，阴离子交换剂负载的HFO微粒显示出显着更大的除去砷和其它配体的能力。 HFO颗粒的装载是通过阴离子交换树脂与氧化阴离子例如MnO 4 - / O 2或OCl - / O 2预先负载来进行的，随后 通过硫酸亚铁溶液通过树脂。

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