查询词典 butyraldehyde

TiSiW_(12)O_(40)/TiO_2 is an excellent catalyst for synthesizing butyraldehyde 1,2-propanediol acetal and the yield could be up to.

报道了以TiSiW_(12)O_(40)/TiO_2为多相催化剂，通过丁醛和1，2-丙二醇反应合成丁醛缩1，2-丙二醇。

Preparation of butyric acid by oxidation of butyraldehyde was studied.

在反应温度 50～ 60℃，氧醛摩尔比 0 。75～ 0 。875，催化剂与正丁醛的质量比 0 。1 %～ 0 。2 %，反应时间为 3 h左右的优化的工艺条件下进行了正丁醛氧化制正丁酸的研究。

Acidic extraction method was used to condensate butyraldehyde and get high concentration organic wastewater,and the influences of pH value,temperature, extracting agent and its amount on extracting effect were also discussed.

利用酸化萃取法处理丁醛缩合高浓度有机废水的思路，探讨了不同废水pH值、温度、萃取剂及萃取剂用量对萃取效果的影响。

Mediated cathodic reduction of butyraldehyde and anodic oxidation of furan by paired electrolysis were studied.

本研究是探讨组对电还原丁醛，及氧化？

The optimum conditions were determined as follows:the molar ratio of butyraldehyde to glycol was 1∶1.6,the mass ratio of catalyst to reactants was 0.4%,the volume of cyclohexane as the water-carrying agent was 10 mL,and the reaction time was 60 min.

结果表明，磷钨钼杂多酸对合成丁醛乙二醇缩醛有较好的催化活性，适宜的反应条件如下：n∶n=1∶1.6、催化剂用量为反应物料总质量的0.4%、带水剂环己烷用量为10 mL、反应时间为60 min。

It is show that the concentration of n butyraldehyde, neptunium, uranium and HNO 3, ratio of phases effect the stripping of Np in the cascade, i.e.

串级实验结果表明，镎在 1BP中的比例小于 10 %；第二级加入正丁醛时，正丁醛和镎在各级的分布较合理，能兼顾镎的去污与反萃。

In a static photocatalytic reactor,the gas-phase adsorption and photocatalytic degradation of benzene and butyraldehyde over the two photocatalysts were studied,and the intermediates and products were detected by gas chromatography.

利用溶胶-凝胶并水热处理法制备了TiO2光催化剂和TiO2/AC复合光催化剂，在静态光催化反应器中研究了苯和丁醛的气相吸附和光催化降解，利气相色谱分析确定了生成的中间体。

On the basis of the analysis of thermodynamics and kinetics of hydrogenation system synthesizing butanol from, the tubular reactor synthesizing butanol from butyraldehyde was mathematically simulated through one-dimensional mathematical model.

在对混合丁醛加氢制丁醇的反应体系进行热力学与动力学分析的基础上，采用一维拟均相数学模型对丁醛加氢制丁醇管壳式固定床反应器进行数学模拟设计。

Some materials were synthesized in this paper at first, 1-nitro-2-pentanol was synthesized with nitromathane and butyraldehyde and the yield was 70.2%; l-nitro-2-pentanol was reduced to 1 -amino-2- pentanol with iron and the yield was 65.2%.

分别用氢氧化钠、三乙胺为缚酸剂，2-氨基-1-丁醇、1-氨基-2-戊醇、环己酮和二氯乙酰氯为原料，采用一步法和分步法合成了两种潜在除草剂安全剂。

Box 275(26) Beijing 102413, China; 2 Beijing Institute of Nuclear Engineering, Beijing 100840, ChinaAbstract The studies of facts effecting on stripping Np from organic phase with HNO 3 and the determinations of Np in the stripping extractor with the reducer of n butyraldehyde are carried out.

单级实验结果表明，正丁醛的加入和延长正丁醛与镎的相互作用时间，有利于从有机相中反萃镎；正丁醛的加入对铀、钚分配比的影响不大；但铀浓度增加会增加镎的反萃。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。