发明名称 |
Process for the production of an olefin oxide, a 1,2-diol, a 1,2-diol ether, a 1,2-carbonate, or an alkanolamine |
摘要 |
A process for the epoxidation of an olefin comprising contacting a reactor feed comprising an olefin, oxygen, and carbon dioxide, with a catalyst comprising a carrier and, deposited on the carrier, silver, a rhenium promoter, and a potassium promoter; wherein the carbon dioxide is present in the reactor feed in a quantity of at most 3 mole percent based on the total epoxidation reactor feed;
the potassium promoter is deposited on the carrier in a quantity of at least 0.5 mmole/kg, relative to the weight of the catalyst; andthe carrier contains water leachable potassium in a quantity of less than 55 parts per million by weight, relative to the weight of the carrier;a process for preparing a 1,2-diol, a 1,2-diol ether, a 1,2-carbonate, or an alkanolamine. |
申请公布号 |
US8921586(B2) |
申请公布日期 |
2014.12.30 |
申请号 |
US200912437258 |
申请日期 |
2009.05.07 |
申请人 |
Shell Oil Company |
发明人 |
Matusz Marek |
分类号 |
C07D301/10 |
主分类号 |
C07D301/10 |
代理机构 |
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代理人 |
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主权项 |
1. A process for the epoxidation of an olefin comprising contacting a reactor feed comprising an olefin, oxygen, and carbon dioxide, with a catalyst comprising a carrier and, deposited on the carrier, silver, a rhenium promoter, a potassium promoter, lithium, and cesium; wherein the carbon dioxide is present in the reactor feed in a quantity of at most 3 mole percent based on the total epoxidation reactor feed;
the potassium promoter is deposited on the carrier in a quantity of at least 0.5 mmole/kg, relative to the weight of the catalyst; the rhenium promoter is deposited on the carrier in a quantity of at least 1.5 mmole/kg, relative to the weight of the catalyst; lithium and cesium are deposited on the carrier in a combined quantity in the range of from 0.01 to 500 mmole/kg, relative to the weight of the catalyst; and the carrier contains water leachable potassium in a quantity of less than 55 parts per million by weight, relative to the weight of the carrier. |
地址 |
Houston TX US |