查询词典 isobutyraldehyde

The experimental results showed that SO_4 2-/TiO_2-MoO_3 was an excellent catalyst for synthesizing isobutyraldehyde glycol acetal .

研究了以固体超强酸SO42-/TiO2-MoO3为催化剂，异丁醛和乙二醇为原料，合成异丁醛乙二醇缩醛的反应条件。

Mainly engaged in: Hydrogen-imide hydrochloride, o-chlorophenyl cyclopentanone, 3.4 dimethoxy ethyl benzene, butyn single potassium acid, potassium ethyl malonyl, Ding amide, amide isobutyraldehyde , allyl chloroacetate, isopropyl chloroacetate Benzyl aluminum, cyclopentene, cyanide-o-chlorophenyl, o-methyl chloride, sulfuric acid chloride, p-chlorophenol, imidazole, Pinacolone, one chlorine Pinacolone.

主要经营：盐酸氢亚胺、邻氯苯基环戊酮、3.4二甲氧基苯乙酯、丁炔二酸单钾盐、丙二酸单乙酯钾盐、丁酰胺、异丁酰胺、氯乙酸烯丙酯、氯乙酸苄酯异丙醇铝、环戊烯、邻氯苯氰、邻氯苯甲酯氯、硫酸氯、对氯苯酚、咪唑、频呐酮、一氯频呐酮。

The reaction mechanism was suggested by way of isobutyraldehyde disproportionation first and followed by dehydrogenation of 2-methyl-1-propanol.

反应机理为经由在同一催化剂上先后进行醛歧化为酸和醇，醇再脱氢两步反应

The density of vacant sites on the surface of support has the effect on the dispersion state, surface acidity and catalytic activity of supported niobia catalysts for condensation reaction of isobutylene and isobutyraldehyde.

本工作较深入地描述了负载型铌氧化物催化剂表面相互作用，为深刻认识负载型铌氧化物催化剂酸催化作用和进行高效固体酸催化剂的设计和制备提供了参考依据。

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。

The technology of synthesizing 2,2,4-trimethylpentane-1,3-diol using industrial isobutyraldehyde and sodium hydroxide is researched in this paper.

以工业异丁醛和氢氧化钠合成了2，2，4-三甲基-1，3-戊二醇。

On the other hand, the use of isobutyraldehyde would cause the decomposition of porphyrin complex.

另外，若此反应再加入异丁醛与之共催化，则会造成催化剂降解。

The heat exchanger network pinch analysis for octanol and isobutyraldehyde plant of one factory was conducted and the engergy saving potential with different minimum temperature difference is given in this paper.

针对某引进的辛醇与异丁醛装置，进行了换热网络的夹点分析，得到了不同的最小换热温差下该装置的节能潜力。

Isobutyraldehyde 1,2-propanediol acetalwas synthesized from isobutyraldehyde and 1,2-propanediol in the presence of aminosulfonic acid as catalyst.

详实地阐述了新型固体超强酸SO2-4/TiO2-MoO3催化剂的制备方法及其应用实例———催化合成异丁醛1，2-丙二醇缩醛新工艺。

The conversion of isobutyraldehyde and the selectivity to 2,4,6-triisopropyl-1,3,5-trioxane were 91.1% and 99.8% respectively under optimum reaction condition isobutyraldehyde 25.0 g, [Et3NH]Cl/FeCl3 ( x (FeCl3)＝0.62 1.0 g, 25 ℃ for 1 h .

在最佳的反应条件下（异丁醛25.0 g， [Et3NH]Cl/FeCl3 x (FeCl3=0.62 1.0 g， 25 °C，N2保护下反应1 h，异丁醛的转化率为91.1%，对2，4，6-三异丙基-1，3，5-三氧噁烷的选择性达99.8%。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。