| 发明名称 |
High-flow hollow-fiber membranes containing polymer blends |
| 摘要 |
A composition for making polymeric fiber membranes, for use in non-cryogenic separation of gases, substantially improves product flow, with only a small decrease in the recovery ratio. The composition is a spin dope including tetrabromo bis-phenol A polycarbonate (TBBA-PC) and tetrabromo bishydroxyphenylfluorene polycarbonate (TBBHPF-PC), in proportions, by weight, ranging (in percent) from about 60/40 to 40/60, and n-methyl pyrrolidinone (NMP) and triethylene glycol (TEG), wherein the ratio of the amounts of NMP to TEG, by weight, is in the range of about 1.6-2.5. The spin dope is used to make hollow fibers for use in gas-separation membrane modules. |
| 申请公布号 |
US9034957(B2) |
申请公布日期 |
2015.05.19 |
| 申请号 |
US201314055618 |
申请日期 |
2013.10.16 |
| 申请人 |
Generon IGS, Inc. |
发明人 |
Jensvold John A.;Coan Frederick L.;Barajas Arthur J. |
| 分类号 |
B01D71/50;D01D5/24;B01D69/08;B01D53/22 |
主分类号 |
B01D71/50 |
| 代理机构 |
|
代理人 |
Eilberg William H. |
| 主权项 |
1. A composition for use in making polymeric fiber membranes, the composition comprising a spin dope including:
a) a mixture of tetrabromo bis-phenol A polycarbonate (TBBA-PC) and tetrabromo bishydroxyphenylfluorene polycarbonate (TBBHPF-PC), in proportions, by weight, ranging (in percent) from about 60/40 to 40/60, and b) n-methyl pyrrolidinone (NMP) and triethylene glycol (TEG), wherein a ratio of NMP to TEG, by weight, is in a range of about 1.6-2.5. |
| 地址 |
Houston TX US |
