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tiandoushi金虫 (小有名气)
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[求助]
谁能帮忙翻译下面这段话，谢谢
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| 以甲基咪唑和3-氯-1-丙醇为原料合成离子液体(NpmimBF4），并将其接枝固载到FDU-15上，成功制备了有机介孔催化剂（NpmimBF4-FDU)。通过相关检测手段对其结构进行了初步表征，同时考察了该催化剂在碳酸丙烯酯(PC)水解反应中的应用。结果表明，该催化剂能有效催化碳酸丙烯酯水解生成1,2-丙二醇(PG)。在催化剂的含量为4%（wt）、温度80℃、反应时间2 h的条件下，PC的转化率大于99%，PG的选择性大于99% 。经简单分离后催化剂可重复使用5次而活性变化不大。同时对催化碳酸丙烯酯水解生成1,2-丙二醇(PG)的机理进行了初步探讨。 |
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3楼2013-11-05 14:17:22
【答案】应助回帖
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以甲基咪唑和3-氯-1-丙醇为原料合成离子液体(NpmimBF4），并将其接枝固载到FDU-15上，成功制备了有机介孔催化剂（NpmimBF4-FDU)。通过相关检测手段对其结构进行了初步表征，同时考察了该催化剂在碳酸丙烯酯(PC)水解反应中的应用。结果表明，该催化剂能有效催化碳酸丙烯酯水解生成1,2-丙二醇(PG)。在催化剂的含量为4%（wt）、温度80℃、反应时间2 h的条件下，PC的转化率大于99%，PG的选择性大于99% 。经简单分离后催化剂可重复使用5次而活性变化不大。同时对催化碳酸丙烯酯水解生成1,2-丙二醇(PG)的机理进行了初步探讨。 Use the methylimidazole and 3-chlorine-1propyl alcohol as the matierials to synthesize ionic liquid-NpmimBF4, and graft and immobilize the NpmimBF4 to FDU-15, successfully preparing organic mesoporous catalyst-NpmimBF4-FDU.Basic representation of the structure of the NpmimBF4-FDU is conducted with relevant testing method, and its application in the hydrolysis reaction of the propylene carbonate(PC) is also analyzed. Results showed that this catalyst is effective to catalyze propylene carbonate(PC) into 1,2- propylene glycol(PG).With 4% weight of the catalyst, temperature of 80℃ and reaction hours of 2h,conversion percentage of propylene carbonate(PC) is over 99%.With simple separation, the catalyst can be used 5 times meanwhile the activity variation is low. Moreover, the manchanism of 1,2- propylene glycol(PG) by catalyzing propylene carbonate(PC) is analyzed basically. ~~具体术语请作者确定，美博翻译~~2013-11-05 |
2楼2013-11-05 14:15:37
4楼2013-11-05 14:41:39
xux730
铁杆木虫 (著名写手)
- 翻译EPI: 86
- 应助: 1719 (讲师)
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- 专业: 细胞周期与调控
【答案】应助回帖
★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★
tiandoushi: 金币+20, ★★★很有帮助 2013-11-08 11:11:53
tiandoushi: 金币+20, ★★★很有帮助 2013-11-08 11:11:53
| The ionic liquid NpmimBF4 was synthesized from methyl imidazole and 3 - chloro-1 - propanol, and grafted and immobilized onto FDU-15. This resulted in the successful preparation of the organic mesoporous catalyst NpmimBF4-FDU. Its structure was preliminarily characterized by related testing approaches, and its activity on hydrolysis of propylene carbonate (PC) was investigated. The results showed that the catalyst effectively catalyzed hydrolysis of propylene carbonate into 1,2 - propylene glycol (PG). When the hydrolysis was conducted with a concentration of 4% (wt) of the catalyst at 80℃ for 2 hours, PC conversion efficiency was greater than 99%, while PG selectivity was greater than 99%.The catalyst could be reused, after simple separation, for five times while its activity did not change much. We also conducted preliminary investigation of the catalytic mechanism of hydrolysis of PC into PG. |
5楼2013-11-05 15:12:36