| 发明名称 | Method of producing diol or triol | ||
| 摘要 | A method for producing a diol or triol, which has a step of removing impurities contained in a diol- or triol-containing solution, is provided. In the method, a diol- or triol-containing solution is filtered through a nanofiltration membrane having a polyamide-containing functional layer. The diol- or triol-containing solution is then collected from the permeate flow of the nanofiltration membrane. | ||
| 申请公布号 | US9018424(B2) | 申请公布日期 | 2015.04.28 |
| 申请号 | US201113076053 | 申请日期 | 2011.03.30 |
| 申请人 | Toray Industries, Inc. | 发明人 | Morita Izumi;Ito Masateru;Sawai Hideki;Minegishi Shinichi;Yamada Katsushige;Kawamura Kenji;Yamane Shinichi |
| 分类号 | C07C29/76;C07C31/20 | 主分类号 | C07C29/76 |
| 代理机构 | Birch, Stewart, Kolasch & Birch, LLP | 代理人 | Birch, Stewart, Kolasch & Birch, LLP |
| 主权项 | 1. A method of producing at least one butanediol, said method comprising the steps of: filtering a solution containing said at least one butanediol through a nanofiltration membrane having a polyamide-containing functional layer; and collecting butanediol-containing solution from the permeate flow of said nanofiltration membrane;wherein said butanediol is 2,3-butanediol, 1,4-butanediol or 1,3-butanediol. | ||
| 地址 | Tokyo JP | ||