发明申请
WO2007073460A1 PROCESS FOR MAKING ALKYLENE GLYCOL ETHER COMPOSITIONS USEFUL FOR METAL RECOVERY
审中-公开
基本信息:
- 专利标题: PROCESS FOR MAKING ALKYLENE GLYCOL ETHER COMPOSITIONS USEFUL FOR METAL RECOVERY
- 专利标题(中):制备用于金属还原的亚苄基甘油醚组合物的方法
- 申请号:PCT/US2006/045751 申请日:2006-11-29
- 公开(公告)号:WO2007073460A1 公开(公告)日:2007-06-28
- 发明人: FADAKAR, Farhad
- 申请人: LYONDELL CHEMICAL TECHNOLOGY, L.P.
- 申请人地址: Two Greenville Crossing, 4001 Kennett Pike, Suite 238, Greenville, DE 19807 US
- 专利权人: LYONDELL CHEMICAL TECHNOLOGY, L.P.
- 当前专利权人: LYONDELL CHEMICAL TECHNOLOGY, L.P.
- 当前专利权人地址: Two Greenville Crossing, 4001 Kennett Pike, Suite 238, Greenville, DE 19807 US
- 代理机构: SCHUCHARDT, Jonathan, L. et al.
- 优先权: US11/316,147 20051222
- 主分类号: B03D1/008
- IPC分类号: B03D1/008 ; C07C41/03 ; C07C43/13
摘要:
A process for making an alkylene glycol ether composition is disclosed. In one aspect, the process comprises reacting propylene glycol methyl ether (PM) with from 1.5 to 3 equivalents of propylene oxide (PO). The resulting alkoxylation mixture is distilled to provide a composition comprising at least 30 wt.% of TPM and less than 20 wt.% of DPM. In another process of the invention, DPM reacts with from 0.5 to 1.5 equivalents of PO in similar fashion to make an analogous product. Also disclosed are alkylene glycol ether compositions made by the process of the invention and use of the compositions in a method for recovering metals from metallic ores by froth flotation.
摘要(中):
公开了一种制备亚烷基二醇醚组合物的方法。 一方面,该方法包括使丙二醇甲基醚(PM)与1.5-3当量环氧丙烷(PO)反应。 将所得的烷氧基化混合物蒸馏以提供包含至少30重量%的TPM和小于20重量%的DPM的组合物。 在本发明的另一个方法中,DPM以类似的方式与0.5至1.5当量的PO反应以制备类似产物。 还公开了通过本发明的方法制备的亚烷基二醇醚组合物和组合物在通过泡沫浮选从金属矿石中回收金属的方法中的用途。