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The fresh and discharged catalysts from the isoamylene unit are characterized by XRD,TG-DTA,FT-IR and the pore structure analysis.
利用X射线衍射、热重分析、红外光谱和孔结构分析对新鲜的和从装置卸出的催化剂进行表征,并对催化剂活性下降的机理进行了讨论。
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The fresh and discharged catalysts from the isoamylene unit are characterized by XRD, TG-DTA, FT-IR, and the pore structure analysis. The active decline mechanism of the catalyst is discussed.
利用X射线衍射、热重分析、红外光谱和孔结构分析对新鲜的和从装置卸出的催化剂进行表征,并对催化剂活性下降的机理进行了讨论。
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The synthesis of eight compounds ( borneol ester and isoborneol ester) and other esters catalyzed by nanometer solid superacids were also researched. In addition, we still analyzed the distinction of esterification yield of borneol ester and isoborneol ester. The particle size, surface area, changes of profile and acidity of nanometer solid superacids were mensurated and analyzed by TEM, BET, XRD, IR and acid indicator.
对纳米固体超强酸催化合成系列正、异冰片酯及其它酯的反应作了一定的研究,论文分析了正、异冰片酯化反应的差异,并用TEM、BET、XRD、IR及酸标指示剂等方法和手段对纳米固体超强酸的粒度、比表而积、形貌变化及其酸性大小进行了分析和测定,通过IR、~1H NMR、~?
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FT-IR and 1H-NMR results show that the reaction occurs in the α-H atom of isobutyraldehyde.
FT-IR及1H-NMR结果说明合成反应发生在异丁醛中的α氢原子上。
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The hybrid composite PW11Co/PAMAM was characterized by FT-IR, UV-Vis diffuse reflectance spectra, XPS, XRD and TG/DTA, indicating that the PW11Co was chemically anchored to PAMAM. The morphologies of the title composite were characterized by scanning electron microscopy and transmission electron microscopy. The catalytic activity was evaluated by oxidation of isobutyraldehyde to isobutyric acid in MeCN under mild conditions (20 ℃, ambient pressure), showing that the title compound is a more effective and recoverable catalyst than corresponding PW11Co.
通过FT-IR、DR-UV-Vis、XRD、TEM、SEM、TG/DTA等手段对其进行了表征,并考察了其对异丁醛转化异丁酸的催化活性,实验结果表明,多金属氧酸盐通过配位键与聚酰胺-胺作用形成的无机-有机复合物可望成为一种催化活性高且易于分离和重复使用的多相催化剂。
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The data of element analysis,melting point,IR and NMR for the product are consistent with the standard data,the purity exceeds 98%.3-methyl-2-oxobutanoic acid sodium ; sodium methoxide ; isobutyraldehyde ; diethyl oxalate
WSR-1熔点仪;Vario EL元素分析仪(德国E le-mentar公司);Nexus 870型傅立叶变换红外光谱仪;aV500核磁共振仪。1.2 3-甲基-2-氧代丁酸钠的制备将15.4 g(0.28 mol)甲醇钠与60 mL(1.5 mol)甲醇装入500 m
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Both IR analysis and TG analysis shows that carbon fiber surface has been grafted by isocyanic ester and caprolactam.
红外和热重分析都表明,碳纤维表面已接枝上异氰酸酯和己内酰胺。
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IPDI trimers were characterized by IR and it indicated the existing of isocyanurate.
采用红外光谱对该三聚产物进行了表征,并证实了异氰脲酸酯的存在。
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Reaction of α,α,α,α-tetra (o-aminophenyl) porphyrin with isonicotinic acid yields the ligand 1b bearing two coordination sites whose structure has been verified by IR、UV-Vis、〓H NMR and MS spectra.
以α,α,α,α-四卟啉为母体,经过与异烟酸缩合反应得到具有两个配位位置的配体1b,配体的结构经过IR、UV-Vis、〓H NMR、MS验证。
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An isonitrile ligand, 2 methyl cyclohexylisonitrile is synthesized and a copper salt Cu(I 4BF 4 of this ligand is also prepared. The isonitrile and its copper salt are characterized by IR and elemental analysis.
合成了一种新的异腈配体 2 甲基环己基异腈及其铜络盐,并经红外光谱和元素分析等表征予以确认。
- 相关中文对照歌词
- Violeta (Fricote)
- Calentándote
- Que La Dejen Ir Al Baile Sola
- Musica Killa
- Pode Ir
- Déjame Ir
- Vueltas En El Aire
- First Time
- Deixo Você Ir
- Me Gustas Tu
- 推荐网络例句
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Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.
目前大多数的研究表现为在变形后的受控Petri网基础上,利用各种方法求得各种逻辑型、结构型控制器,解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。
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On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.
一方面,有讨论,工程理事会和联盟关于延长工作时间短至9月底。
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