合成抗氧剂1010的动力学

对季戊四醇同３，５－二叔丁基－４－羟基苯丙酸甲酯合成抗氧剂四－〔３－（３，５－二叔丁基－４－羟基苯基）丙酸〕季戊四醇酯的动力学进行研究，提出二丁基氧化锡作催化剂时的反应机理。根据实验确定了反应动力学常数，建立了反应过程数学模型。实验结果表明，模拟值和实验值吻合良好。     

熔盐合成法制备CaTiO3粉体的研究

以TiO2及CaCO3为原料,CaCl2为反应介质,对熔盐合成法制备CaTiO3粉体进行研究,并与固相合成法进行比较.结果表明,熔盐合成法可将纯相CaTiO3的合成温度从固相合成法所需的1 400 ℃降至800 ℃,熔盐法合成的CaTiO3粉末粒度较小(＜0.5 μm),分布均匀,且具有很高的分散性.在熔盐合成法中由于CaCO3及TiO2在熔融CaCl2中有较高的溶解度,两者可在其中通过"溶解析出"机理进行反应,从而在较低的温度下生成单一相的CaTiO3.     

共分散复合润滑剂ESC的合成和性能

报导了N,N′-亚烷基双脂肪酰胺/脂肪酸金属皂共分散复合润滑剂的合成方法,以及它的热稳定性和润滑性的研究,结果发现,复合润滑剂与同种机械混合润滑剂相比,其热稳定性和润滑性都较好。     

硝酸钾实验室合成法的改进

在无机化学教学中，对沿袭已久的硝酸钾实验室合成方法进行改进，对丰富学生思路有积极作用．     

苯氧基乙酸的合成

介绍一种合成苯氧基乙酸的方法，并对影响产率的因素进行了研究。     

甲基橙制备方法的改良

文章介绍了一种室温下直接合成甲基橙的改良方法。与传统合成甲基橙的方法相比，改良法具有操作简便、节约试剂和能耗、产率高等优点。     

用原位反应合成法制备TiC/2618复合材料的工艺过程研究

采用普通机械搅拌熔铸法和逆向熔铸法（先熔中间合金后加基体材料）对原位反应合成法（即XD法）制备TiC／2618复合材料的工艺过程进行了研究．结果表明：逆向熔铸法可增加中间合金的可熔性,有效减少了熔铸过程中TiC粒子的损失,制得较为理想的复合材料．图4,参4     

风险投资中基于权矩阵的层次合成法

首先给出了2种基于权矩阵的层次合成法，第1种方法利用权矩阵使整个层次系统中所有横向联系及纵向联系统一于单个优化目标函数之中，并通过计算一个简洁的公式获得系统的排序向量；第2种方法利用权矩阵建立一个简洁的线性目标规划模型，并通过求解该模型获得系统的排序向量．然后把层次合成法推广到具有多个准则层的系统．最后把它们应用于解决风险投资领域中的项目评估问题．     

合成球铁的研制

利用废钢、增碳剂并适当配入铸造生铁,通过熔炼来获得合格的原铁水,然后经球化孕育处理形成球墨铸铁,为球墨铸铁生产开辟出一条新的途径。     

乙二醇乙酸酯的催化合成研究

对乙二醇与乙酸脂化合成二醇乙酸酯的反应进行了研究，得出以ＦｅＹ为催化剂且用量为醇的质量百分比为３．７％，醇酸双为１：５，反应时间为６ｈ，混酯收率达８４．６％（按双酯计）的结论。     

乙二醇的合成工艺的研究分析

主要介绍了目前国内外乙二醇的合成工艺路线,并对部分路线的优缺点做了表述。     

乙撑双硬脂酸酰胺的合成

在氮气保护条件下, 利用双组分催化剂和双组分抗氧剂的协同效应, 合成了白色的乙撑双硬脂酸酰胺;研究了反应温度、催化剂、抗氧剂和原料配比等因素对产物质量的影响; 确定了最佳工艺条件, 并对产物进行了分析鉴定。     

Recent progresses of late-transition metal complexes with nonsymmetric diimine ligands in ethylene polymerization and oligomerization

Researches of late-transition metal complexes for ethylene polymerization and oligomerization have attracted a lot of attention in the last two decades. A large number of late-transition metal complexes with symmetric diimine ligands have been extensively studied. Although the research of unsymmetric diimine late-transition metal complexes was still in the initial stage, some superior performances were observed in olefin polymerization. Recent developments in the research of ethylene poly- merization and oligomerization catalyzed by late-transition metal complexes with unsymmetric diimine ligands were summarized in this review, with the influence of complex structure on the catalytic performance of the catalyst analyzed.     

环氧乙烷吸收溶液合成碳酸乙烯酯管式反应工艺条件

在自行建立的管式反应器上,采用实验室开发的NY-2催化剂,以环氧乙烷(EO)吸收溶液和CO2为原料,进行合成碳酸乙烯酯(EC)连续过程研究.考察液空速、吸收溶液中EC与乙二醇(EG)摩尔比、EC与EO摩尔比、水含量、催化剂用量、反应压力和温度对反应的影响.通过实验研究,确定了较佳的连续反应条件:反应温度为(125±5)℃、反应压力为(3.5±0.5)MPa、催化剂质量分数不小于2%、吸收溶液中水的质量分数少于1.2%、EC与EO摩尔比为5、EG质量分数小于30%、空速小于0.67 h-1.在此条件下,EO的转化率大于98%,EC的选择性大于80%.     

Synthesis,characterization and electrocatalytic studies of palladium–manganese oxyhydroxide nanocomposite towards direct ethylene glycol fuel cell

The palladium nanoparticle grafted manganese oxyhydroxide nanorod （MON） electrocatalyst has been synthesized and tested for the electrooxidation of ethylene glycol （EG） in an alkaline medium. The MON was prepared using the hydrothermal method and the Pd nano- particles were coated on the MON using an in situ reduction method. The nanocatalyst thus prepared was characterized by powder X-ray diffraction, scanning electron microscopy, high resolution transmission electron microscopy, energy dispersive X-ray spectroscopy and electrochemical methods. The microscopic studies confirm the formation of MON and reveal that the Pd nanoparticles were grafted uniformly on the MON. In the voltammetric studies, the Pd/MON catalyst exhibited a six-fold improved peak current for ethylene glycol electrooxidation compared with the C/Pd. The EG electrooxidation reaction performances of the Pd/MON nanocatalyst in the alkaline solutions containing different quantities of EG were tested through cyclic voltammetry. The catalytic removal of the poisonous intermediates formed during electrooxidation of EG was explained. The present study shows that MON can act as an active support for the Pd nanocatalyst.     

金属成形加工时坯料与模具间的摩擦特点

从不同角度分析了模具在金属成形加工中摩擦的特点,介绍了坯料与模具表面各种预处理方法。对模具在加工中所用的各种润滑剂的特点、性能及干膜的组成作了简要的阐述。提出了模具所用润滑剂今后发展的趋势。     

铜配合物催化环氧乙烷合成碳酸乙烯酯

借助于铜配合物的多相催化作用,研究环氧乙烷(EO)和CO2一步合成碳酸乙烯酯(EC)的反应,探索制备催化剂的溶剂种类、制备温度、回流时间对催化剂催化活性的影响以及反应温度、反应压力等因素对反应过程的影响.实验结果表明,以无水乙醇为溶剂,80～90 ℃制备温度下,回流60 min制备的CuBr2(NY)2配合物催化剂催化活性最高.最佳反应工艺条件为:反应原料中添加EC(n(EC)/n(EO)=5.5±0.5)时,催化剂质量分数为2%～2.5%,反应温度为(110±10) ℃,反应压力为(3.5±0.5) MPa,n(H2O)/n(EO)=0.5.在此条件下,EO的转化率达到98.16%,EC的选择性达到87.64%.     

聚乙二醇支载1,2,3-三唑化合物的合成

以聚乙二醇作为可溶性聚合物载体,得到了聚乙二醇支载的的邻叠氮苯甲酸酯,与炔酯发生1,3-偶极环加成反应后,以KCN作为解脱剂,从聚乙二醇上解脱得到1,2,3-三唑化合物,具有较好的产率,经红外、核磁及元素分析等检测,所得数据与其结构相符.     

Electrocatalytic oxidation of ethanol and ethylene glycol on bimetallic Ni and Ti nanoparticle-modified indium tin oxide electrode in alkaline solution

Bimetallic Ni and Ti nanoparticle-modified indium tin oxide electrode(Ni–TiNPs/ITO) were prepared by a twostep ion implantation method, and their electrocatalytic activity toward the oxidation of ethanol and glycol was evaluated. The ion-implantation method is simple, low-cost and environmental friendly without the use of any binder. The Ni–TiNPs/ITO electrode were characterized by scanning electron microscopy(SEM), atomic force microscopy(AFM) and X-ray photoelectron spectroscopy(XPS). SEM and AFM showed that the nanoparticles on the Ni–TiNPs/ITO electrode had a small range of dispersion(10–20 nm) and high dispersion. Electrochemical performances were measured by cyclic voltammetry(CV) and chronoamperometrics. The Ni–TiNPs/ITO electrode exhibited much higher electrocatalytic activity and stability for ethanol and ethylene glycol oxidation than NiNPs/ITO.