发明名称 |
Pseudo-boehmitpulver til katalysatorbærer og fremgangsmåde til fremstilling heraf |
摘要 |
<p>An aluminum salt solution and an alkali aluminate solution are subjected to a neutralization reaction to precipitate and form a pseudo-boehmite powder. The neutralization reaction is performed under a condition in which the reaction temperature is within a range of 55 to 71 DEG C, pH is within a range of 8.5 to 9.5, and the solution feed time is within a range of 7 to 25 minutes. The obtained pseudo-boehmite is as follows. That is, the pore volume concerning pores having a pore diameter ranging from 20 to 600 ANGSTROM is within a range of 0.8 to 1.8 cc/g as measured by the nitrogen adsorption method, and the maximum value of variation ratio dV/dD of the pore volume with respect to the pore diameter as measured by the BJH method is not more than 0.018 cc/g. ANGSTROM . When the pseudo-boehmite is used, it is possible to produce a catalyst carrier for hydrogenation refining, which has a sharp pore diameter distribution and which suffers less decrease in strength upon impregnation with a catalyst solution. <IMAGE></p> |
申请公布号 |
DK0950638(T3) |
申请公布日期 |
2013.02.04 |
申请号 |
DK19980932528T |
申请日期 |
1998.07.15 |
申请人 |
JX NIPPON OIL & ENERGY CORPORATION |
发明人 |
TSUKADA, TAKAYUKI-JAPAN;NAKAMURA, HIROYUKI |
分类号 |
C01F7/14;B01J21/04;B01J35/10;C01F7/34 |
主分类号 |
C01F7/14 |
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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