- 专利标题: Method for manufacturing of spheroidal alumina particles
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申请号: US14365781申请日: 2012-11-16
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公开(公告)号: US09669387B2公开(公告)日: 2017-06-06
- 发明人: Sylvie Lacombe , Priscilla Avenier , Malika Boualleg , Delphine Bazer-Bachi , Patrick Euzen , Joseph Lopez
- 申请人: IFP ENERGIES NOUVELLES
- 申请人地址: FR Rueil-Malmaison
- 专利权人: IFP ENERGIES NOUVELLES
- 当前专利权人: IFP ENERGIES NOUVELLES
- 当前专利权人地址: FR Rueil-Malmaison
- 代理机构: Millen, White, Zelano and Branigan, P.C.
- 优先权: FR1103998 20111220
- 国际申请: PCT/FR2012/000466 WO 20121116
- 国际公布: WO2013/093221 WO 20130627
- 主分类号: C01F7/00
- IPC分类号: C01F7/00 ; B01J21/04 ; C01F7/02 ; C01F7/44 ; B01J35/10 ; B01J37/00 ; C04B35/111 ; C04B35/626 ; B01J27/135
摘要:
The present invention concerns spheroidal alumina particles, catalysts comprising such particles as a support and a process for the production of spheroidal alumina particles, comprising the following steps: a) preparing a suspension comprising water, an acid and at least one boehmite powder for which the ratio of the crystallite dimensions in the [020] and [120] directions obtained using the Scherrer X-ray diffraction formula is in the range 0.7 to 1; b) adding a pore-forming agent, a surfactant and optionally water, or an emulsion comprising at least one pore-forming agent, a surfactant and water to the suspension of step a); c) mixing the suspension obtained in step b); d) shaping the spheroidal particles by the oil-drop method using the suspension obtained in step c); e) drying the particles obtained in step d); f) calcining the particles obtained in step e).
公开/授权文献
- US20140357471A1 METHOD FOR MANUFACTURING OF SPHEROIDAL ALUMINA PARTICLES 公开/授权日:2014-12-04
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