发明名称 |
Hydrothermal process for the preparation of quasi-crystalline boehmite |
摘要 |
Process for the preparation of quasi-crystalline boehmite comprising the steps of: (a) preparing an aqueous precursor mixture comprising a water-insoluble aluminum source; (b) decreasing the pH of the precursor mixture of step (a) by at least 2 units; (c) increasing the pH of the mixture of step (b) by at least 2 units, and (d) aging the mixture of step (c) under hydrothermal conditions to form a quasi-crystalline boehmite. This process provides for the hydrothermal preparation of quasi-crystalline boehmites with high peptizability. The invention therefore further relates to quasi-crystalline boehmites with a high peptizability, measured as the Z-average submicron particle size. This Z-average submicron particle size preferably is less than 500 nm, more preferably less than 300 nm, even more preferably less than 200 nm, and most preferably less than 100 nm. |
申请公布号 |
US8088354(B2) |
申请公布日期 |
2012.01.03 |
申请号 |
US20040579595 |
申请日期 |
2004.11.19 |
申请人 |
LAHEIJ ERIK JEROEN;O'CONNOR PAUL;STAMIRES DENNIS;MORGADO, JR. EDISSON;SANTOS DE ABREU MARCO ANTONIO;FERNANDES MARCIO;BRADY MICHAEL;ALBEMARLE NETHERLANDS B.V. |
发明人 |
LAHEIJ ERIK JEROEN;O'CONNOR PAUL;STAMIRES DENNIS;MORGADO, JR. EDISSON;SANTOS DE ABREU MARCO ANTONIO;FERNANDES MARCIO;BRADY MICHAEL |
分类号 |
C01F7/02 |
主分类号 |
C01F7/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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