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ankang276

金虫 (正式写手)

[求助] 求助一段翻译

Catalysts with 20 wt.% Mo2C supported on HY zeolite and doped
with 0.5–2 wt.% Mg or 1 wt.% K, were prepared by co-impregnation of
the zeolite (ZeolystTM CBV720, SiO2/Al2O3=30) using a quantified
aqueous solution of ammonium heptamolybdate tetrahydrate (MoO3
81.0–83.0%, Sigma) mixed with magnesium nitrate hexahydrate (99%,Sigma) or potassium nitrate (99.97%, BDH Chemicals). After aging at
70 °C for 2 h, the impregnated support was dried at 120 °C for 12 h
and calcined at 500 °C for 4 h.
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liubencai

木虫之王 (文坛精英)

【答案】应助回帖


sltmac(金币+1): 感谢应助,欢迎常来~ 2011-08-07 10:04:31
负载于HY分子筛并用0.5-2%(质量)Mg或1%(质量)K掺杂的20%(质量)Mo2C催化剂的制备,是通过用四水七钼酸铵(MoO3 81.0–83.0%, Sigma)与六水硝酸镁(99%,Sigma公司)或硝酸钾(99.97%, BDH Chemicals)的混合物的定量水溶液来共同浸渍分子筛(Zeolyst TM CBV720, SiO2/Al2O3=30)。浸渍后的载体在70°C老化2小时后,再在120°C老化12小时,在500°C焙烧4小时
坚持到底
2楼2011-08-07 08:48:26
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zou-yanhua

金虫 (小有名气)

【答案】应助回帖


sltmac(金币+1): 楼下说的对,sigma是一个规模比较大的试剂公司(美国) 2011-08-07 15:27:28
ankang276(金币+20, 翻译EPI+1): 2011-08-07 15:45:06
有20%(质量分数)的 Mo2C负载于HY分子筛并掺杂了 Mg(质量分数0.5-2 %) 或K(1%)的催化剂,是通过用四水七钼酸铵(MoO3 81.0–83.0%, 西门子公司)与六水硝酸镁(99%,西门子公司)或硝酸钾(99.97%, BDH 化学制剂)的定量水溶液混合来共同浸泡分子筛而制得的。在70°C老化2小时后,再将浸泡后的载体在120°C下干燥12小时,然后在500 °C下煅烧4小时。
3楼2011-08-07 13:06:04
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zou-yanhua

金虫 (小有名气)

【答案】应助回帖

Sigma是Sigma试剂
4楼2011-08-07 13:10:57
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