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    • 2. 发明授权
    • Composite polyamide reverse osmosis membrane and method of producing the
same
    • 复合聚酰胺反渗透膜及其制备方法
    • US6015495A
    • 2000-01-18
    • US25520
    • 1998-02-18
    • Ja-Young KooNowon Kim
    • Ja-Young KooNowon Kim
    • B01D39/16B01D69/12B01D71/56
    • B01D39/16B01D69/125B01D71/56
    • A composite polyamide reverse osmosis membrane and method of producing same. In a preferred embodiment, the membrane is made by coating a porous polysulfone support for about 1 minute with an aqueous solution containing 2 wt % m-phenylenediamine (MPD), 2 wt % 2-butoxyethanol and 2 wt % propylene glycol. Next, the excess MPD solution is removed, and the coated support is dipped for about 1 minute in 0.1 wt % organic solvent solution of trimesoyl chloride (TMC) in a mixture of alkanes having from 8 to 12 carbon atoms. After draining the TMC solution off, the resulting composite membrane is air dried at room temperature to 40.degree. C. for about 1 minute and then rinsed in a basic aqueous solution at 40-60.degree. C. for 1 to 30 minutes. The resultant membrane exhibits a flux of 27.5 gfd and a salt rejection of 98.2% when used at 225 psi for an aqueous solution containing 2000 ppm of NaCl.
    • 一种复合聚酰胺反渗透膜及其制造方法。 在优选的实施方案中,膜是通过用含有2重量%间苯二胺(MPD),2重量%2-丁氧基乙醇和2重量%丙二醇的水溶液涂覆多孔聚砜载体约1分钟制成的。 接下来,除去过量的MPD溶液,并将涂覆的载体在具有8至12个碳原子的烷烃的混合物的0.1重量%的均苯三甲酰氯(TMC)的有机溶剂溶液中浸渍约1分钟。 排出TMC溶液后,将所得复合膜在室温至40℃下空气干燥约1分钟,然后在40-60℃的碱性水溶液中漂洗1至30分钟。 对于含有2000ppm NaCl的水溶液,当在225psi下使用时,所得到的膜表现出27.5gfd的通量和98.2%的拒水率。
    • 3. 发明申请
    • SELECTIVE MEMBRANE HAVING A HIGH FOULING RESISTANCE
    • 具有高耐磨性的选择膜
    • US20120211414A1
    • 2012-08-23
    • US13330167
    • 2011-12-19
    • Ja-Young KooYong-Doo JungSung-Pyo HongYeo-Jin Kim
    • Ja-Young KooYong-Doo JungSung-Pyo HongYeo-Jin Kim
    • B01D71/56B01D69/12B01D69/10
    • B01D71/56B01D61/025B01D67/0093B01D69/10
    • A selective membrane having a high fouling resistance. In one embodiment, the selective membrane is a composite polyamide reverse osmosis membrane having a hydrophilic coating made by covalently bonding a hydrophilic compound to the polyamide membrane, the hydrophilic compound including (i) a reactive group that is adapted to covalently bond directly to the polyamide membrane, the reactive group being at least one of a primary amine and a secondary amine; (ii) a non-terminal hydroxyl group; and (iii) an amide group. In another embodiment, the hydrophilic compound includes (i) a reactive group adapted to covalently bond directly to the polyamide membrane, the reactive group being at least one of a primary amine and a secondary amine; (ii) a hydroxyl group; and (iii) an amide group, the amide group being linked directly to the hydroxyl group by one of an alkyl group and an alkenyl group.
    • 具有高耐污性的选择性膜。 在一个实施方案中,选择性膜是具有通过将亲水性化合物共价键合到聚酰胺膜而制备的亲水性涂层的复合聚酰胺反渗透膜,所述亲水性化合物包括(i)适于与聚酰胺直接共价键合的反应性基团 膜,反应性基团是伯胺和仲胺中的至少一种; (ii)非末端羟基; 和(iii)酰胺基。 在另一个实施方案中,亲水性化合物包括(i)适于与聚酰胺膜直接共价键合的反应性基团,反应性基团为伯胺和仲胺中的至少一种; (ii)羟基; 和(iii)酰胺基,酰胺基通过烷基和烯基之一直接与羟基连接。
    • 4. 发明授权
    • Composite polyamide reverse osmosis membrane and method of producing the same
    • 复合聚酰胺反渗透膜及其制备方法
    • US06368507B1
    • 2002-04-09
    • US09172594
    • 1998-10-14
    • Ja-Young KooYoung Seo YoonNowon KimJong-Eun Kim
    • Ja-Young KooYoung Seo YoonNowon KimJong-Eun Kim
    • B01D3900
    • B01D71/56B01D69/125
    • A composite polyamide reverse osmosis membrane and method of producing same. In one embodiment, the membrane is made by coating a porous polysulfone support for about 40 seconds with an aqueous solution containing (i) a polyfunctional amine in the form of 2 wt % of meta-phenylenediamine (MPD), (ii) a polar solvent in the form of 0.3 wt % 2-ethyl-1,3-hexanediol (EHD), and (iii) an amine salt-forming combination of 2.3 wt % camphorsulfonic acid (CSA) and 1.1 wt % triethylamine (TEA). Next, the excess aqueous solution is removed, and the coated support is dipped for about 1 minute in a 0.1 wt % organic solvent solution of trimesoyl chloride (TMC) in a mixture of alkanes having from 8 to 12 carbon atoms. After draining the organic solvent solution off, the resulting composite membrane is heated at 90° C. for about 3.5 minutes and then rinsed in a 0.2% Na2CO3 aqueous solution at room temperature. The resultant membrane exhibits a flux of 47.9 gfd and a salt rejection of 97.6% when used at 225 psi for an aqueous solution containing 2000 ppm of NaCl. In another embodiment, the aqueous solution contains (i) a polyfunctional amine in the form of 2 wt % of MPD, (ii) a combination of polar solvents in the form of 0.3 wt % of EHD and 2 wt % of dimethyl sulfoxide, and (iii) an amine salt-forming combination of 1 wt % of 1,1,3,3-tetramethylguanidine and 1.6 wt % toluene sulfonic acid. The resultant membrane exhibits a flux of 63.7 gfd and a salt rejection of 90.8% when used at 225 psi for an aqueous solution containing 2000 ppm of NaCl.
    • 一种复合聚酰胺反渗透膜及其制造方法。 在一个实施方案中,膜是通过用含有(i)2重量%间苯二胺(MPD)形式的多官能胺,(ii)极性溶剂(MPI)的水溶液涂覆多孔聚砜载体约40秒制备的, 以0.3重量%的2-乙基-1,3-己二醇(EHD)的形式,和(iii)2.3重量%樟脑磺酸(CSA)和1.1重量%三乙胺(TEA)的胺盐形成组合。 接下来,除去过量的水溶液,并将涂覆的载体在具有8至12个碳原子的烷烃的混合物的0.1重量%的均苯三酰氯(TMC)的有机溶剂溶液中浸渍约1分钟。 在排出有机溶剂溶液后,将所得复合膜在90℃下加热约3.5分钟,然后在室温下在0.2%Na 2 CO 3水溶液中漂洗。 对于含有2000ppm NaCl的水溶液,当在225psi下使用时,得到的膜表现出47.9gfd的通量和97.6%的拒水率。 在另一个实施方案中,水溶液包含(i)2重量%MPD形式的多官能胺,(ii)0.3重量%的EHD和2重量%的二甲基亚砜形式的极性溶剂的组合,以及 (iii)1重量%的1,1,3,3-四甲基胍和1.6重量%的甲苯磺酸的胺盐形成组合。 对于含有2000ppm NaCl的水溶液,当在225psi下使用时,得到的膜表现出63.7gfd的通量和90.8%的拒水率。
    • 5. 发明授权
    • Selective membrane having a high fouling resistance
    • 具有高耐污性的选择性膜
    • US09089820B2
    • 2015-07-28
    • US13330167
    • 2011-12-19
    • Ja-Young KooYong-Doo JungSung-Pyo HongYeo-Jin Kim
    • Ja-Young KooYong-Doo JungSung-Pyo HongYeo-Jin Kim
    • B01D71/56B01D67/00B01D69/10B01D61/02
    • B01D71/56B01D61/025B01D67/0093B01D69/10
    • A selective membrane having a high fouling resistance. In one embodiment, the selective membrane is a composite polyamide reverse osmosis membrane having a hydrophilic coating made by covalently bonding a hydrophilic compound to the polyamide membrane, the hydrophilic compound including (i) a reactive group that is adapted to covalently bond directly to the polyamide membrane, the reactive group being at least one of a primary amine and a secondary amine; (ii) a non-terminal hydroxyl group; and (iii) an amide group. In another embodiment, the hydrophilic compound includes (i) a reactive group adapted to covalently bond directly to the polyamide membrane, the reactive group being at least one of a primary amine and a secondary amine; (ii) a hydroxyl group; and (iii) an amide group, the amide group being linked directly to the hydroxyl group by one of an alkyl group and an alkenyl group.
    • 具有高耐污性的选择性膜。 在一个实施方案中,选择性膜是具有通过将亲水性化合物共价键合到聚酰胺膜而制备的亲水性涂层的复合聚酰胺反渗透膜,所述亲水性化合物包括(i)适于与聚酰胺直接共价键合的反应性基团 膜,反应性基团是伯胺和仲胺中的至少一种; (ii)非末端羟基; 和(iii)酰胺基。 在另一个实施方案中,亲水性化合物包括(i)适于与聚酰胺膜直接共价键合的反应性基团,反应性基团为伯胺和仲胺中的至少一种; (ii)羟基; 和(iii)酰胺基,酰胺基通过烷基和烯基之一直接与羟基连接。
    • 8. 发明授权
    • Composite polyamide reverse osmosis membrane and method of producing the
same
    • 复合聚酰胺反渗透膜及其制备方法
    • US06063278A
    • 2000-05-16
    • US67891
    • 1998-04-28
    • Ja-Young KooYoung Seo Yoon
    • Ja-Young KooYoung Seo Yoon
    • B01D69/12B01D71/56B01D39/14B29C65/02
    • B01D71/56B01D69/125
    • A composite polyamide reverse osmosis membrane and method of producing same. In one embodiment, the membrane is made by coating a porous polysulfone support for about 40 seconds with an aqueous solution containing 2 wt % of meta-phenylenediamine (MPD), 1 wt % 1,4-diazabicyclo[2,2,2]octane (DABCO) and 0.85 wt % methanesulfonic acid (MSA). Next, the excess MPD solution is removed, and the coated support is dipped for about 1 minute in 0.1 wt % organic solvent solution of trimesoyl chloride (TMC) in a mixture of alkanes having from 8 to 12 carbon atoms. After draining the TMC solution off, the resulting composite membrane is heated at 90.degree. C. for about 3.5 minutes and then rinsed in a basic aqueous solution at 40-60.degree. C. for 30 minutes. The resultant membrane exhibits a flux of 32.3 gfd and a salt rejection of 97.0% when used at 225 psi for an aqueous solution containing 2000 ppm of NaCl.
    • 一种复合聚酰胺反渗透膜及其制造方法。 在一个实施方案中,通过用含有2重量%间苯二胺(MPD),1重量%1,4-二氮杂双环[2,2,2]辛烷的水溶液涂覆多孔聚砜载体约40秒来制备膜 (DABCO)和0.85重量%甲磺酸(MSA)。 接下来,除去过量的MPD溶液,并将涂覆的载体在具有8至12个碳原子的烷烃的混合物的0.1重量%的均苯三甲酰氯(TMC)的有机溶剂溶液中浸渍约1分钟。 排出TMC溶液后,将得到的复合膜在90℃下加热约3.5分钟,然后在40-60℃的碱性水溶液中漂洗30分钟。 对于含有2000ppm NaCl的水溶液,当在225psi下使用时,得到的膜表现出32.3gfd的通量和97.0%的拒水率。