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tiandoushi金蟲 (小有名氣)
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[求助]
誰能幫忙翻譯下面這段話，謝謝
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| 以甲基咪唑和3-氯-1-丙醇為原料合成離子液體(NpmimBF4），并將其接枝固載到FDU-15上，成功制備了有機介孔催化劑（NpmimBF4-FDU)。通過相關(guān)檢測手段對其結(jié)構(gòu)進行了初步表征，同時考察了該催化劑在碳酸丙烯酯(PC)水解反應(yīng)中的應(yīng)用。結(jié)果表明，該催化劑能有效催化碳酸丙烯酯水解生成1,2-丙二醇(PG)。在催化劑的含量為4%（wt）、溫度80℃、反應(yīng)時間2 h的條件下，PC的轉(zhuǎn)化率大于99%，PG的選擇性大于99% 。經(jīng)簡單分離后催化劑可重復(fù)使用5次而活性變化不大。同時對催化碳酸丙烯酯水解生成1,2-丙二醇(PG)的機理進行了初步探討。 |
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xux730
鐵桿木蟲 (著名寫手)
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【答案】應(yīng)助回帖
★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★
tiandoushi: 金幣+20, ★★★很有幫助 2013-11-08 11:11:53
tiandoushi: 金幣+20, ★★★很有幫助 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樓2013-11-05 15:12:36
【答案】應(yīng)助回帖
|
以甲基咪唑和3-氯-1-丙醇為原料合成離子液體(NpmimBF4），并將其接枝固載到FDU-15上，成功制備了有機介孔催化劑（NpmimBF4-FDU)。通過相關(guān)檢測手段對其結(jié)構(gòu)進行了初步表征，同時考察了該催化劑在碳酸丙烯酯(PC)水解反應(yīng)中的應(yīng)用。結(jié)果表明，該催化劑能有效催化碳酸丙烯酯水解生成1,2-丙二醇(PG)。在催化劑的含量為4%（wt）、溫度80℃、反應(yīng)時間2 h的條件下，PC的轉(zhuǎn)化率大于99%，PG的選擇性大于99% 。經(jīng)簡單分離后催化劑可重復(fù)使用5次而活性變化不大。同時對催化碳酸丙烯酯水解生成1,2-丙二醇(PG)的機理進行了初步探討。 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. ~~具體術(shù)語請作者確定，美博翻譯~~2013-11-05 |
2樓2013-11-05 14:15:37
3樓2013-11-05 14:17:22
xiuyi43
銅蟲 (小有名氣)
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- 專業(yè): 結(jié)構(gòu)工程
4樓2013-11-05 14:41:39
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