| 稀土固体超强酸SO_4~(2-)/ZrO_2/Ce~(4+)催化合成溴代正辛烷 |
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| 引用本文： | 崔秀兰,林明丽,郭海福,郭俊文,杨永志.稀土固体超强酸SO_4~(2-)/ZrO_2/Ce~(4+)催化合成溴代正辛烷[J].精细化工,2002,19(9):548-550. |
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| 作者姓名： | 崔秀兰 林明丽 郭海福 郭俊文 杨永志 |
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| 作者单位： | 1. 内蒙古工业大学,化工学院,内蒙古,呼和浩特,010062
2. 广东肇庆学院,轻工化工系,广东,肇庆,526061 |
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| 基金项目： | 内蒙古自治区自然科学基金项目 ( 2 0 0 10 9— 13)~~ |
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| 摘 要： | 以稀土固体超强酸SO4 2 -/ZrO2 /Ce4 + 为催化剂 ,氢溴酸和正辛醇为原料 ,合成了溴代正辛烷。最适宜合成条件为 :n(氢溴酸 )∶n(正辛醇 ) =3 6∶1 0 ,催化剂CSZ—Ⅱ〔w(Ce) =2 0 %〕的用量为反应物总质量的 1 6 %,反应时间为 5h ,反应温度 130～ 140℃ ,溴代正辛烷产率可达72 8%,精制产品w(溴代正辛烷 ) >99%。催化剂经再生、重复使用 10次 ,溴代正辛烷产率降至 6 9 9%。用IR、1H NMR等手段对产品进行了确证。
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| 关 键 词： | 稀土固体超强酸 催化 溴代正辛烷 |
| 文章编号： | 1003-5214(2002)09-0548-03 |
Synthesis of n-Octyl Bromide Catalyzed by Rare Earth Solid Super Acid SO42-/ZrO2/Ce4+ |
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| CUI Xiu-lan ,LIN Ming-li ,GUO Hai-fu ,GUO Jun-wen ,YANG Yong-zhi.Synthesis of n-Octyl Bromide Catalyzed by Rare Earth Solid Super Acid SO42-/ZrO2/Ce4+[J].Fine Chemicals,2002,19(9):548-550. |
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| Authors: | CUI Xiu-lan LIN Ming-li GUO Hai-fu GUO Jun-wen YANG Yong-zhi |
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| Affiliation: | CUI Xiu-lan 1,LIN Ming-li 1,GUO Hai-fu 2,GUO Jun-wen 1,YANG Yong-zhi 1 |
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| Abstract: | Synthesis of n-octyl bromide with hydrobromic acid and n-octyl alcohol as reactants and rare earth solid super acid SO 4 2-/ZrO 2/Ce 4+as catalyst was studied.The results showed that the optimum conditions should be that n(hydrobromic acid)∶n(n-octyl alcohol)=3.6∶1.0,amount of catalyst CSZ-Ⅱ〔w(Ce)=2.0%〕 was 1.6% of total mass of reactants,the reaction time was 5h and the temperature was 130-140 ℃.The yield of n-octyl bromide was about 72.8%,and for the refined product,w(n-octyl bromide)>99%.The catalyst can be reused after reactivation and the yield of n-octyl bromide reduced to 69.9% at the 10th time.Structure of the product was identified by methods of IR and 1H-NMR |
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| Keywords: | rare earth solid super acid catalysis n-octyl bromide |
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