发明名称 |
Calcium and lanthanum solid base catalysts for transesterification |
摘要 |
In one aspect, a heterogeneous catalyst comprises calcium hydroxide and lanthanum hydroxide, wherein the catalyst has a specific surface area of more than about 10 m2/g. In another aspect, a heterogeneous catalyst comprises a calcium compound and a lanthanum compound, wherein the catalyst has a specific surface area of more than about 10 m2/g, and a total basicity of about 13.6 mmol/g. In further another aspect, a heterogeneous catalyst comprises calcium oxide and lanthanum oxide, wherein the catalyst has a specific surface area of more than about 10 m2/g. In still another aspect, a process for preparing a catalyst comprises introducing a base precipitant, a neutral precipitant, and an acid precipitant to a solution comprising a first metal ion and a second metal ion to form a precipitate. The process further comprises calcining the precipitate to provide the catalyst. |
申请公布号 |
US9089833(B2) |
申请公布日期 |
2015.07.28 |
申请号 |
US200913127614 |
申请日期 |
2009.11.05 |
申请人 |
WAYNE STATE UNIVERSITY |
发明人 |
Ng K.Y. Simon;Yan Shuli;Salley Steven O. |
分类号 |
C10L1/18;B01J23/00;B01J23/10;B01D53/94;B01J35/10;B01J37/03;C11C3/00 |
主分类号 |
C10L1/18 |
代理机构 |
Brinks Gilson and Lione |
代理人 |
Brinks Gilson and Lione |
主权项 |
1. A heterogeneous catalyst, consisting essentially of:
calcium oxide, lanthanum oxide, calcium hydroxide, and lanthanum hydroxide, wherein the catalyst has a specific surface area of more than about 20 m2/g. |
地址 |
Detroit MI US |