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| 1 | 炭质磺酸化固体酸催化剂的制备及催化合成生物柴油研究显示文摘以秸秆为原料,采用炭化和磺化方法制备炭质磺酸化固体酸催化剂,并通过XRD、SEM和FTIR对制备的催化剂结构进行表征。通过催化油酸和甲醇酯化反应制备生物柴油,考察相关因素对油酸转化率的影响。结果表明,在反应温度为68℃,催化剂质量为油酸质量的7%,反应时间为5 h,醇酸的物质的量比为12∶1,生物柴油转化率可达94.83%。 | 董海进 齐相前 赵华 李会鹏 韩聪 | 2016 | 应用化工2016,45,4: | 4 |
| 2 | 秸秆炭质固体酸催化剂的制备及应用显示文摘以秸秆为原料,采用炭化和磺化方法制备炭质磺酸化固体酸催化剂,并通过XRD、SEM和FT-IR对所制备催化剂的结构进行表征。通过催化油酸和甲醇酯化反应制备生物柴油,考察炭化温度、炭化时间、磺化温度和磺化时间对催化剂性能的影响。并研究了不同条件对油酸转化率的影响,优化了制备生物柴油的最佳工艺条件,结果表明:在炭化温度为350℃、炭化时间1h、磺化温度140℃、磺化时间1h的条件下,所制备催化剂具有较高的活性;在反应温度为68℃、反应时间为5h、催化剂质量为油酸质量的7%、甲醇与油酸的物质的量比为12∶1的条件下,生物柴油转化率可达94.83%。 | 董海进 齐相前 赵华 李会鹏 韩聪 | 2016 | 化工新型材料2016,44,10: | 3 |
| 3 | Development of Science China Chemistry during 2008-2012:From the perspective of Special Issues/Topics显示文摘1 Introduction Science China Press Co.,Ltd.(SCP) is a science and technology(ST) journal publishing company of the Chinese Academy of Sciences(CAS).SCP publishes 16 kinds of academic journals,Science China Series and Chinese Science Bulletin,of which 8 journals are in English and 8 | SONG GuanQun ZHU XiaoWen | 2012 | Science China Chemistry2012,55,12: | 2 |
| 4 | Products and production routes for the catalytic conversion of seed oil into fuel and chemicals: a comprehensive review显示文摘With the depletion of fossil resources, there is a need to find alternative resources of fuels and chemicals. The use of renewable feedstock such as those from seed oil processing is one of the best available resources that have come to the fore-front recently. This paper critically analyzes and highlights major factors in the biodiesel industry, such as seeds oil composition, production methods, properties of biodiesel, problems and potential solutions of using vegetable seed oil, the composition, quality and effective utilization of crude glycerol, the catalytic conversion of glycerol into possible fuels and chemicals. | Mazloom Shah Jian-Jun Dai Qing-Xiang Guo Yao Fu | 2015 | Science China Chemistry2015,58,7: | 1 |
| 5 | Covalently tethering disulfonic acid moieties onto polyoxometalate boosts acid strength and catalytic performance for hydroxyalkylation/alkylation reaction显示文摘Solid acid catalysts are widely used in the production of various high-value added and industrially important chemicals.Although the use of organosilicon compounds to modify the vacancy site has been extensively studied,the covalent tethering-SO_(3)H functionalized organosilicon modified polyoxometalates(POMs)has been rarely reported.In this work,two catalysts(TBA_(4)[SiW_(11)O_(39)(O(SiC_(3)H_(6)SO_(3)H)_(2))](compound 2)and TBA_(4)[SiW_(11)O_(39)(O(SiC_(8)H_(8)SO_(3)H)_(2))](compound 3))were synthesized successfully through covalently grafting different sulfonic acid(-SO_(3)H)groups onto[SiW_(11)O_(39)]^(8−)cluster,respectively.Compound 2 was achieved by surface grafting and in situ oxidation(3-mercaptopropyl)-trimethoxysilane,while compound 3 was achieved by surface grafting of 2-(4-chlorosulfonylphenyl)ethyltrimethoxysilane.Strong Brønsted acid strength of compounds 2 and 3 can be demonstrated by different methods including potentiometric titration,pyridine adsorption studies,and the ^(31)P trimethylphosphine oxides(TMPO)nuclear magnetic resonance(NMR).The systematic investigation of the relationship among POM structures,acid strength,and electron density was carried out based on density functional theory(DFT)calculation and experimental results,which revealed that covalent modification of compounds 2 and 3 decreased the electron density of the O-H bond,and promoted the release of H^(+).When applied in hydroxyalkylation/alkylation(HAA)reaction of 2-methylfuran(2-MF)with cyclohexanone,compound 2 exhibited better catalytic performance with conversion of ~93%,monocyclic fuel precursors(1a)yield of 79.9% and selectivity of 85.7% than compound 3,which can be attributed to strong Brønsted acid and the intramolecular hydrogen-bonding interactions between the neighboring -SO_(3)H moieties in compound 2.Finally,compound 2 also showed excellent catalytic activity in the HAA reaction of 2-MF with several different aldehydes and ketones(e.g.,furfuraldehyde,5-methylfurfuraldehyde,acetone,butyraldehyde and 4-methoxybenzaldehyde).This result opens a new pathway for design and fabrication of novel solid acid catalysts. | Lifei Lian Yubing Liu Xianfeng Yi Hanbin Hu Xiang Chen Hongqiang Li Wei Chen Anming Zheng Yu-Fei Song | 2022 | Science China Chemistry2022,65,4: | 1 |
| 6 | 羟基乙烷磺酸的合成与应用进展显示文摘综述了羟基乙烷磺酸的合成方法及其应用价值,展望了羟基乙烷磺酸的研究方向。为羟基乙烷磺酸及其相关产业(或研究领域)的研究提供了理论参考。 | 魏东旭 姜恒 宫红 | 2012 | 精细化工中间体2012,42,4: | 1 |
| 7 | PolyHIPEs块体的磺化改性及其吸附研究显示文摘以乙酰磺酸酯为磺化剂,对不同内相比的高内相比乳液聚合所得多孔聚合物块体(polyHIPEs)进行磺化改性处理,通过傅立叶变换红外光谱(FT-IR)、电导滴定、紫外-可见-近红外分光光度计等对磺化产物及其吸附性能进行了表征。结果表明,polyHIPEs已被成功磺化,磺化后块体表面的亲水亲油性发生了明显的变化,其吸水性明显增强,而吸油性明显减弱。由于引入了带负电荷的磺酸基团(-SO3H),其对正离子或带正电荷的分子(如亚甲基蓝染料)具有较强的吸附性能。同时,磺化后的块体具有一定的pH敏感性。 | 孙发孟 白蕊 张发爱 | 2014 | 化学研究与应用2014,26,8: | 0 |