基本信息:
- 专利标题： TWO-STAGE, GAS PHASE PROCESS FOR THE MANUFACTURE OF ALKYLENE GLYCOL
- 专利标题（中）：用于制造亚苄基甘油的两阶段气相工艺
- 申请号：PCT/US2009/051830 申请日：2009-07-27
- 公开(公告)号：WO2010017052A2 公开(公告)日：2010-02-11
- 发明人： NORONHA, John, C. , CAMPBELL, E., Joseph , KEEN, Brian, T. , NAGAKI, Dick, A. , SOO, Hwaili , SPEARS, David, A. , SZUL, John, F.
- 申请人： DOW TECHNOLOGY INVESTMENTS LLC , NORONHA, John, C. , CAMPBELL, E., Joseph , KEEN, Brian, T. , NAGAKI, Dick, A. , SOO, Hwaili , SPEARS, David, A. , SZUL, John, F.
- 申请人地址： 2020 Dow Center Midland, MI 48674 US
- 专利权人： DOW TECHNOLOGY INVESTMENTS LLC,NORONHA, John, C.,CAMPBELL, E., Joseph,KEEN, Brian, T.,NAGAKI, Dick, A.,SOO, Hwaili,SPEARS, David, A.,SZUL, John, F.
- 当前专利权人： DOW TECHNOLOGY INVESTMENTS LLC,NORONHA, John, C.,CAMPBELL, E., Joseph,KEEN, Brian, T.,NAGAKI, Dick, A.,SOO, Hwaili,SPEARS, David, A.,SZUL, John, F.
- 当前专利权人地址： 2020 Dow Center Midland, MI 48674 US
- 代理机构： PLOTECHER, Gary, R.
- 优先权： US61/086,306 20080805
- 主分类号： C07C29/16
- IPC分类号： C07C29/16 ; C07C31/20
摘要：
A two-stage, gas phase process for manufacturing alkylene glycol (e.g., ethylene glycol) from an alkene (e.g., ethylene), oxygen and water, the process comprising the steps of: (A) Contacting under gas phase, oxidation conditions gaseous alkene and oxygen over a heterogeneous oxidation catalyst to produce a gaseous oxidation product comprising alkylene oxide, water and unreacted alkene; (B) Contacting under gas phase, hydrolysis conditions the gaseous oxidation product of (A) with added water over a heterogeneous hydrolysis catalyst to produce a gaseous alkylene glycol and unreacted alkene; and (C) Recycling the unreacted alkene of (B) to (A). The hydrolysis catalyst is selected from the group consisting of hydrotalcites, metal-loaded zeolites, phosphates, and metal-loaded ion-exchanged molecular sieves. The process improves over the conventional two-stage process by the elimination of steps and equipment to recover and refine alkylene oxide, the use of less water in the hydrolysis reaction, and the elimination of the entire evaporation train used in the recovery of alkylene glycol.
摘要（中）：
用于从烯烃（例如乙烯），氧气和水制造亚烷基二醇（例如乙二醇）的两阶段气相方法，该方法包括以下步骤：（A）在气相，氧化条件下接触气态烯烃 和氧在异相氧化催化剂上产生包含环氧烷，水和未反应的烯烃的气态氧化产物; （B）在气相下接触，水解条件下将（A）的气态氧化产物与加入的水在非均相水解催化剂上反应生成气态的亚烷基二醇和未反应的烯烃; 和（C）将（B）的未反应烯烃回收至（A）。 水解催化剂选自水滑石，负载金属的沸石，磷酸盐和负载金属的离子交换分子筛。 该方法通过消除步骤和设备来回收和改进氧化烯，在水解反应中使用较少的水以及消除用于回收亚烷基二醇的整个蒸发系统，改进了常规的两阶段方法。
IPC结构图谱:
| C | 化学；冶金 |
| --C07 | 有机化学 |
| ----C07C | 无环或碳环化合物 |
| ------C07C29/00 | 含羟基或氧—金属基连接碳原子的化合物的制备 |
| --------C07C29/16 | .用与还原相结合的氧代反应 |