发明名称 |
HYBRID TFC RO MEMBRANES WITH NON-METALLIC ADDITIVES |
摘要 |
A process for preparing a reverse osmosis membrane that includes: (A) providing a polyamine, a polyfunctional acid halide, and a flux increasing additive having the formula Z+B−, where Z+ is an easily dissociable cation and B− is a beta-diketonate; (B) combining the polyamine, polyfunctional acid halide, and flux increasing additive on the surface of a porous support membrane; and (C) interfacially polymerizing the polyamine and the polyfunctional acid halide, and flux increasing additive on the surface of the porous support membrane to form a reverse osmosis membrane comprising (i) the porous support membrane and (ii) a discrimination layer comprising a polyamide. The reverse osmosis membrane is characterized by a flux that is greater than the flux of the same membrane prepared in the absence of the flux increasing additive. |
申请公布号 |
US2014329010(A1) |
申请公布日期 |
2014.11.06 |
申请号 |
US201414338543 |
申请日期 |
2014.07.23 |
申请人 |
NanoH2O, Inc. |
发明人 |
Koehler Jeffrey Alan;Kurth Christopher James |
分类号 |
B01D71/56;B01D61/02;B01D69/02;B01D67/00;B01D69/12 |
主分类号 |
B01D71/56 |
代理机构 |
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代理人 |
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主权项 |
1. A process for preparing a reverse osmosis membrane, comprising:
(A) providing a polyamine, a polyfunctional acid halide, and a flux increasing additive having the formula Z+B−, where Z+ is an easily dissociable cation and B− is a beta-diketonate; (B) combining the polyamine, polyfunctional acid halide, and flux increasing additive on the surface of a porous support membrane; and (C) interfacially polymerizing the polyamine and the polyfunctional acid halide, and flux increasing additive on the surface of the porous support membrane to form a reverse osmosis membrane comprising (i) the porous support membrane and (ii) a discrimination layer comprising a polyamide, wherein the reverse osmosis membrane is characterized by a flux that is greater than the flux of the same membrane prepared in the absence of the flux increasing additive. |
地址 |
El Segundo CA US |