英语人>网络例句>氢化 相关的搜索结果
网络例句

氢化

与 氢化 相关的网络例句 [注:此内容来源于网络,仅供参考]

The reaction of forming tetrahydrogenfuran derivatives is fast than that of forming tetrahydrogen -pyrrole derivatives.

1形成四氢呋喃环化衍生物反应的速度比四氢吡咯的速度要快。

The mineralization of gold and silver is zoned and closely related to silicification of carbonate and clastic rocks, so siliceous ore dominates in the deposit.

矿化温度主要在300~170 C之间,成矿流体的主要成分为K~-、Na~-、Ca~(2+)、Mg~(2+)、Cl~。金属配合物的分配计算显示,金在成矿热液中主要以疏氢配合物迁移,而银、铁、铅、锌则以氯配合物为主,铁、铅、锌在成矿后期的中性-弱碱性环境下可转变为羟基和硫氢配合物。

By azo compound became chromophore monomer disperse red -19, and through Sulfonyl of the compound was synthesized by the C, and through 1HNMR its structure was characterized, the results show that the synthesis of compounds C of very high purity, synthetic polymers can meet at the request of the monomer, but also of the compound D, through 1HNMR its characterization, showed that high purity compounds D, is expected to be functional after the adoption of To all the excellent performance PEEK electro-optic polymer materials.

本文通过偶氮化合成了生色团单体分散红-19,并通过磺酰化反应合成得到了化合物C,并通过核磁共振氢谱对其结构进行了表征,结果表明,所合成的化合物C的纯度非常高,完全能满足聚合物合成时对单体的要求,同时也合成了化合物D,通过核磁共振氢谱对其结构表征,显示化合物D纯度很高,应有望通过后功能化合成出各种性能优良的聚醚醚酮电光高分子材料。

The influence of ZQM1 - 1000/10 thyratron reservoir voltage on CuBr laser output power was measured and analysed.

分析和测量了ZQM1—1000/10氢闸流管的氢发生器电压对溴化亚铜激光器激光平均功率的影响。

The initial interaction modes of pyreno[2,1-b]pyrrole and its dimeric derivative with F in MeCN can be understood as hydrogen-bonded complexes. Excess F ions promotes deprotonation of N-protons and results in the bathochromic changes in both absorption and fluorescence spectra.

实验过程中发现,在初始模式中,芘骈吡咯及双芘骈吡咯与氟离子形成氢键附合物;之后加入的氟离子,因其带有极强的碱性,将促使吡咯官能基中氮上氢进行去质子化,而造成吸收及萤光光谱的红位移现象。

The catalytic activity and selectivity for hydrodesulfurization and hydrodenitrogenation were studied by using benzothiophene, dibenzothiophene and quinoline as model compounds.

在N2-H2下,利用程序升温还原氮化反应制备氧化铝负载的β-Mo2N0.78催化剂,并以苯并噻吩、二苯并噻吩和喹啉为模型化合物,考察该催化剂的加氢脱硫、加氢脱氮活性和选择性。

In this thesis, investigations focused on heteropoly acids-catalyzed C-C and C-N bond formation reactions and the synthesis of xanthenediones and acridinediones under thermal conditions are described.1.12-Phosphotungstic acid has been used as an efficient,eco-friendly,and air- and moisture-stable catalyst to promote the direct dehydrative substitution of the hydroxy group of benzylic and allylic alcohols with variousβ-dicarbonyl compounds.

本篇论文主要描述了杂多酸催化下的C-C和C-N键的生成,以及无溶剂直接加热下合成十氢氧杂蒽二酮和9-芳基十氢吖啶二酮。主要内容如下:1。在磷钨酸催化下,1,3-二羰基化合物与醇能够顺利偶合,脱除一分子的水,生成烷基化的1,3-二羰基化合物。反应在甲苯中进行时,二芳基甲醇能与各类1,3-二羰基化合物反应,成率很高;但对于1-苯乙醇,只能得到很低的产率。

The 6- cyano-1, 1 (1, 3- dioxypropylidene)-7-(carbomethoxyl group- methyl - 5- oxo-Delt6 (8)- tetrahydrochysene indolizine and haloethane reacts with each other for ethylization with existence of alkali and organic solution with or without phase transversion catalyst, and produces mentioned product.

本发明在相转移催化剂或无相转移催化剂存在下,6-氰基-1,1-(1,3-亚丙二氧基)-7-(甲氧羰基-甲基-5-氧代-Δ6(8)-四氢中氮茚类化合物与卤代乙烷在碱和有机溶剂的存在下进行乙基化反应即得6-氰基-1,1-(1,3-亚丙二氧基)-7-1′-(烷氧羰基-丙基-5-氧代-Δ6(8)-四氢中氮茚类化合物。

Polyether modified polysiloxane was synthesized by the hydrosilation reaction of hydrogen containing silicone fluidand allyl polyether, using chloroplatinic acid as the catalyst.

以氯铂酸为催化剂,利用含氢硅油与烯丙基聚醚的硅氢加成反应,合成出聚醚改性硅油;然后用乙醇胺进行胺化反应,制成纸张用氨基改性聚醚硅油柔软剂。

After analyzing the reaction mechanism through literature, we think the reaction from diethanolamine to iminodiatic salt is composed of two steps—reaction from alcohol to aldehyde and the disproportionation reaction of the aldehyde. The selectivity, conversion, rate of this reaction are mainly attributed to the capability of this catalyst.

通过查阅文献资料,分析了反应机理,认为二乙醇胺脱氢生成酸是由两步反应组成─醇脱氢生成醛与醛的歧化,催化剂的性能是影响反应转化率、选择性及反应速度的主要因素,确定了采用沉淀法制备Cu/ZrO2做催化剂。

第52/91页 首页 < ... 48 49 50 51 52 53 54 55 56 ... > 尾页
推荐网络例句

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。

There is no differences of cell proliferation vitality between labeled and unlabeled NSCs.

双标记神经干细胞的增殖、分化活力与未标记神经干细胞相比无改变。