公开(公告)号：US06368507B1

公开(公告)日：2002-04-09

申请号：US09172594

申请日：1998-10-14

申请人： Ja-Young Koo ,  Young Seo Yoon ,  Nowon Kim ,  Jong-Eun Kim

发明人： Ja-Young Koo ,  Young Seo Yoon ,  Nowon Kim ,  Jong-Eun Kim

IPC分类号： B01D3900

CPC分类号： B01D71/56 ,  B01D69/125

摘要： 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.

摘要翻译： 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。

公开(公告)号：US06063278A

公开(公告)日：2000-05-16

申请号：US67891

申请日：1998-04-28

申请人： Ja-Young Koo ,  Young Seo Yoon

发明人： Ja-Young Koo ,  Young Seo Yoon

IPC分类号： B01D69/12 ,  B01D71/56 ,  B01D39/14 ,  B29C65/02

CPC分类号： B01D71/56 ,  B01D69/125

摘要： 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.

摘要翻译： 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。

公开(公告)号：US20100062254A1

公开(公告)日：2010-03-11

申请号：US12440972

申请日：2007-09-13

申请人： Chang Won Park ,  Young Seo Yoon

发明人： Chang Won Park ,  Young Seo Yoon

IPC分类号： C08G71/04

CPC分类号： C08G18/0866 ,  C08G18/4277 ,  C08G18/755 ,  C08G18/791 ,  Y10T428/2982

摘要： Disclosed is a process for preparing polyurethane particulate and polyurethane particulate prepared therefrom. The polyurethane particulate has properties such that it is easy to control to a spherical form, the polyurethane particulate can be prepared in a desired particle size, the color thereof is stably exhibited, a washing process thereof is easy because almost no foam is generated in the washing process, and the preparation cost can be lowered because the particles do not lump and a separate grinding process is not needed, by using an inorganic suspension stabilizer in the manufacture process of the polyurethane particulate.

摘要翻译： 公开了一种制备由其制备的聚氨酯颗粒和聚氨酯颗粒的方法。 聚氨酯颗粒具有易于控制为球形的性质，可以以所需的粒径制备聚氨酯颗粒，其颜色稳定地显现，其洗涤方法容易，因为在 通过在聚氨酯颗粒的制造过程中使用无机悬浮稳定剂，可以降低颗粒不会积聚并且不需要单独的研磨工艺，因此可以降低制备成本。

公开(公告)号：US08192842B2

公开(公告)日：2012-06-05

申请号：US12440972

申请日：2007-09-13

申请人： Chang Won Park ,  Young Seo Yoon

发明人： Chang Won Park ,  Young Seo Yoon

IPC分类号： C08G71/04

CPC分类号： C08G18/0866 ,  C08G18/4277 ,  C08G18/755 ,  C08G18/791 ,  Y10T428/2982

摘要： Disclosed is a process for preparing polyurethane particulate and polyurethane particulate prepared therefrom. The polyurethane particulate has properties such that it is easy to control to a spherical form, the polyurethane particulate can be prepared in a desired particle size, the color thereof is stably exhibited, a washing process thereof is easy because almost no foam is generated in the washing process, and the preparation cost can be lowered because the particles do not lump and a separate grinding process is not needed, by using an inorganic suspension stabilizer in the manufacture process of the polyurethane particulate.

摘要翻译： 公开了一种制备由其制备的聚氨酯颗粒和聚氨酯颗粒的方法。 聚氨酯颗粒具有易于控制为球形的性质，可以以所需的粒径制备聚氨酯颗粒，其颜色稳定地显现，其洗涤方法容易，因为在 通过在聚氨酯颗粒的制造过程中使用无机悬浮稳定剂，可以降低颗粒不会积聚并且不需要单独的研磨工艺，因此可以降低制备成本。