- 专利标题: Preparation of methyl methacrylate via an oxidative esterification process
-
申请号: US14906310申请日: 2014-07-29
-
公开(公告)号: US09676699B2公开(公告)日: 2017-06-13
- 发明人: Kirk W. Limbach , Dmitri A. Kraptchetov , Christopher D. Frick
- 申请人: Rohm and Haas Company
- 申请人地址: US PA Philadelphia
- 专利权人: Rohm and Haas Company
- 当前专利权人: Rohm and Haas Company
- 当前专利权人地址: US PA Philadelphia
- 代理商 Edward L. Brant
- 国际申请: PCT/US2014/048667 WO 20140729
- 国际公布: WO2015/017437 WO 20150205
- 主分类号: C07C67/39
- IPC分类号: C07C67/39 ; B01J37/03 ; B01J37/16 ; B01J21/04 ; B01J23/00 ; B01J23/644 ; B01J23/652 ; B01J23/648 ; B01J27/186 ; C07C67/62
摘要:
A process for producing methyl methacrylate, the process comprising contacting reactants comprising methacrolein, methanol and an oxygen-containing gas, under reaction conditions in the presence of a solid catalyst comprising palladium, bismuth and at least one third element X, where X is selected from the group consisting of P, S, Sc, V, Ga, Se, Y, Nb, Mo, La, Ce, and Nd, wherein the solid catalyst further comprises a support selected from at least one member of the group consisting of silica, alumina, calcium carbonate, active carbon, zinc oxide, titanium oxide and magnesium oxide.