歧化

In this paper, the chemical equilibrium constants of the reactions in the reaction system of toluene disproportionation and trimethylbenzene transalkylation reaction system were carefully calculated , and the equilibrium compositions of the components at different temperatures and different feed mole ratios were analysed .

对甲苯歧化与三甲苯烷基转移反应体系中反应的化学平衡常数进行了详细计算，并对不同温度、不同进料组成下的平衡组成进行了分析。结果表明，随温度升高，甲苯与三甲苯的芳烃平衡转化率降低，二甲苯的平衡组成亦降低；降低进料中甲苯和三甲苯的摩尔比，甲苯和三甲苯的总芳烃平衡转化率降低，而二甲苯的平衡组成明显上升。

Those undecomposed 2:14:1 phase could be the nucleation centre during DR process while the decomposed mixture formed c-axis texture of Nd_2_(14)B.

在脱氢再结合时，歧化产物以未分解的Nd_2_(14)B为形核中心，晶粒择优生长，生成各向异性永磁体。

It is necessary to convert plenty of pine sources into economy advantage, and develop a kind of unprecious metal catalyst substituting for Palladium.

目前，松香歧化反应用最理想的催化剂是Pd/C催化剂，但贵金属Pd在地壳中含量少，价格贵，而我国钯主要依靠进口，要把云南省丰富的松林资源优势转化为经济优势，研究开发一种可以替代Pd的非贵金属催化剂具有重要的意义。

A new oscillographic potentiometric kinetic method for determining super trace aromatic amine was developed, based on the brominating reaction of aromatic amine and bromine.

将动力学分析法与示波电位法相结合，利用KBrO3与KBr的反歧化反应和溴代反应体系，提出了测定痕量芳胺的新方法。

The paper describes the new developments of producing high purity indium by vacuum distillation and thin layer fused salt electrolysis refining,as well as production of high purity metallic indium powder via disproportioning indium monoxide in aqueous medium.

报道了俄罗斯使用真空蒸馏和熔盐电解精炼制取高纯铟，以及用一氯化铟在水溶液中的歧化法制备金属铟粉的新进展。

The calculated value of enthalpies are consistent with the tendency and degree of diproportionation reaction of the alloys obtained by experimental results.

计算得到的生成焓数据与实验获得的合金歧化反应趋势和程度相符合。

The activities of superoxide dismut ase and glutathione peroxidase were elevated with increased dur ation of the supplementation. However, no differences between the LA and HA g roups were observed.

抗氧化酵素系统中的超氧化歧化酵素(superoxide dismutas e；SOD)和麸胱甘太过氧化酵素(glutathione peroxidase；GSH-Px)的活性均随著抗氧化营养素补充时间的增长而显著上升，但高剂量组和低剂量组的上升程度相似。

However, the conversion rate of glycerol produced from the first stage using cornstarch to 1,3-propanediol from the second stage was only 26.5 % in 31h and the final concentration of 1,3-propanediol was 13.4 g/L. The productivity of 0.43 g/ of the second stage was much lower than that of a two-stage-fermentation from glucose （1.65g/ L） or of single fermentation from saponified glycerol, which is

多年来，研究人员在甘油生物歧化过程的代谢途径、动力学特征等方面已进行了较为深入的研究，甘油作为唯一碳源的最大理论摩尔转化率为72％，辅助底物的使用可以将甘油转化率提高至100％，发酵液中1，3一PD的最终浓度可以达到65～70 g／L3 。。。。。。

For the first time,our group found that lanthanide amides can initiate the Cannizarro disproportionation reaction of aromatic aldehydes.

我们小组首次发现了通过稀土胺基化合物引发芳香醛发生Cannizzaro-型歧化反应，生成相应的酰胺和醇。

The reaction of disproportionation of gum rosin catalyzed by AH non-noble metal catalyst was studied, and the effects of reaction temperature, reaction time, particle size of catalyst, and stir speed were investigated.

用AH型非贵金属催化剂催化松香歧化反应，考察了搅拌速率、催化剂粒度、反应温度、反应时间对反应的影响，建立了动力学方程。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐