发明名称 |
Reverse osmosis and ultrafiltration methods for solutions to isolate desired solutes including taxane |
摘要 |
A method of processing a feed liquid in the form of an extraction solution containing taxane solutes that is an extraction product of a biomass utilizes at least one semipermeable membrane to remove at least one taxane solute from the solvent by reverse osmosis. The feed liquid is placed in a first region on one side of the membrane and pressure is supplied to transport constitutes of the feed liquid across the membrane to a second region as a first permeate while retaining a first retentate in the first region. The taxane solute may be either retained or transported. Where the taxane solute is transported, the method can further include the use of a second semipermeable membrane of a pore size different from the first membrane and supplying a pressure to transport some of the first permeate across the second membrane as a second permeate while retaining a majority of the desired taxane solute as a second retentate. Here, the first membrane has a pore size which allows transport of the taxane solute while the second membrane has a pore size that retains the taxane solute. A variety of solvents and useable membranes is disclosed.
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申请公布号 |
US5549830(A) |
申请公布日期 |
1996.08.27 |
申请号 |
US19940203653 |
申请日期 |
1994.02.28 |
申请人 |
NAPRO BIOTHERAPEUTICS, INC. |
发明人 |
CARVER, DAVID R.;PROUT, TIMOTHY R.;WORKMAN, CHRISTOPHER T.;HUGHES, CHARLES L. |
分类号 |
B01D61/02;B01D61/14;C07D305/14;(IPC1-7):B01D61/14 |
主分类号 |
B01D61/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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