歧化反应

High temperature is disadvantageous for the disproportionation of CO, and decreases the conversion significantly due to the limitation of thermodynamic equilibrium.

在实验条件下，因温度较高对CO的歧化不利，受热力学平衡的限制，CO虽能歧化但反应的转化率很低。

The desulfurization networks of alkylthiophenes and benzothiophene on OTA catalyst were involving both and direct hydrodesulfurization, but also, containing disproportionation, isomerization.

烷基噻吩和苯并噻吩硫化物在OTA催化剂上脱硫反应网络一方面含有直接加氢脱硫反应，另一方面经历歧化、异构化和裂解等反应。

The super acid SO〓/ZrO〓, due to its strong acidity, favores the dealkylation and disproportionatin of 4-TBC or/and DTBC, preventing the increase of the selectivity for 4-TBC.

而固体超强酸SO〓/ZrO〓由于酸性较强，易于发生4-叔丁基邻苯二酚和3，5-二叔丁基邻苯二酚的脱烷基反应和4-叔丁基邻苯二酚的歧化反应，因此不利于提高4-叔丁基邻苯二酚的产率。

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。

In the presence of DMAc/LiCl solvent, disproportionated rosin glycide-cassava starch ester was synthesized from cassava starch and modified disproportionated glycide ester under microwave irradiation. The effect of reaction conditions on the degree of substitution has been discussed.

在微波辐照下，以DMAc/L iC l为溶剂体系，歧化松香缩水甘油酯和木薯淀粉亲核开环反应得到歧化松香缩水甘油木薯淀粉酯，探讨了各反应因素对产物取代度的影响。

In this paper, firstly using natural fatty acids including lauric acid, myristic acid, palmitic acid etc. and disproportionated rosin as starting materials, the acyl reaction of starting materials with SOCl_2 respectively, and then using Schotten-Baumann condensation: on the reaction conditions of alkalescence, condensation of acylchloride with amino acid (sarcosine, glycine, alanine etc.), and then acidification, saltation. A series of anionic surfactants of N-acyl amino: sodium N-fatty acyl sarcosinate (SFS-12, SFS-14, SFS-16); sodiun N-fatty acyl glycinate(SFG-12, SFG-14, SFG-16); sodium N-fatty acyl alaninate(SFA-12, SFA-14, SFA-16)and sodium N-disproportionated rosinoyl aminatewere prepared. During the preparation of N-acylamino acid, the reaction conditions of acylchloride with amino acid condensation were identified by optimizing the synthetic conditions of N-lauroyl sarcosine: mol ratio of amino acid to acylchloride 2:1, reaction taken place in a solvent composed by acetone/water 2:1, acylchloride and 20% NaOH were slowly added to the reaction mixture at the same time while maintaining the pH at 9~10, after completion of adding maintaining reacting for 2.5h at 25℃.

首先以月桂酸、肉豆蔻酸、棕榈酸等天然脂肪酸和歧化松香为原料，与氯化亚砜反应制得酰氯，然后采用Schotten-Baumann 缩合法路线，即在碱性条件下，酰氯和氨基酸(肌氨酸、甘氨酸、丙氨酸等)缩合，经过酸化、成盐，合成一系列氨基酸型阴离子表面活性剂：脂肪酰肌氨酸钠，即月桂酰肌氨酸钠(SFS-12)、肉豆蔻酰肌氨酸钠(SFS-14)、棕榈酰肌氨酸钠(SFS-16)；脂肪酰甘氨酸钠，即月桂酰甘氨酸钠(SFG-12)、肉豆蔻酰甘氨酸钠(SFG-14)、棕榈酰甘氨酸钠(SFG-16)；脂肪酰丙氨酸钠，即月桂酰丙氨酸钠(SFA-12)、肉豆蔻酰丙氨酸钠(SFA-14)、棕榈酰丙氨酸钠(SFA-16)；N-歧化松香酰基氨基酸钠(sodium N-disproportionated rosinoyl aminate)，即N-歧化松香酰基肌氨酸钠(sodium N-disproportionated rosinoyl sarcosinate ，简称SDRS)、N-歧化松香酰基甘氨酸钠(sodium N-disproportionated rosinoyl glycinate，简称SDRG)、N-歧化松香酰基丙氨酸钠(sodium N-disproportionated rosinoyl alaninate，简称SDRA)。

The mechanism of redistribution of trichloromethyl and chlorotrimethyl silane catalyzed by ZnCl2 has been obtained by calculation.

通过计算，得出了ZnCl2催化的一甲基三氯硅烷和三甲基氯硅烷歧化反应的机理，得出了IRC曲线和过渡态的虚振动模式。

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。

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。

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。

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