金属

Some products such as: diisobutyl phthalate, cyclohexylmethyl tridecyl oxalate and 2-isopropylcyclohexanol that have not been reported in the directly oxidation of alkane by traditional method have been obtained, and all the products are used in fuel, leather, textiles, cosmetics and so on.(3) Metal-promoted superacids SO_4~(2-)/SnO_2-M_XO_Y (M= Ce, Co, V, Mo, Ti), which were highly active for this reactions, were investigated in order to improve its acid sites activity, selectivity and stability.

这一在常温常压下以锡系超强酸为催化剂催化氧化碳氢化合(来源：ABCca8cca论文网www.abclunwen.com)物的反应还未见报道：(3)金属改性锡系固体超强酸SO_4~(2-)／SnO_2-M_XO_Y(M=Ce，Co，V，Mo，Ti)在催化氧化反应中表现出很好的催化活性，通过研究表明金属改性剂的加入提高了催化剂酸性，选择性和稳定性；(4)具有光催化活性金属Ti的引入极大的提高了催化剂SO_4~(2-)／SnO_2的比表面积。

In order to investigate the relationship between the open-chain ligands and metal ions, and the possibility of the metal complexes used as electroluminescent materials, a new naphthol schiff base ligand which is a open-chain crown and its four transition metal complexes, a new amide type tripodal ligand containing heterocyclic ring, two tripodal ligands (H〓L〓 and H〓L〓) containing phenol schiff bases and their rare earth complexes were synthesized and characterized.

为了进一步研究和探讨开链配体与金属离子的配位作用，以及金属配合物作为电致发光材料的可能性，我们设计合成了含萘酚环的Schiff碱开链冠醚H〓L〓及四种过渡金属(Zn、Ni、Co、Cu)配合物，两个含酚羟基的Schiff碱三足配体H〓L〓和H〓L〓及稀土配合物，一个含杂环的酰胺型三足配体L〓，培养了配体L〓的单晶，确定了其晶体结构。

The invention provides a process for recovery of lithium and other metals and salts from brines, by using a series of evaporation tanks to control the evaporation of the brines of this metal, with unnecessity of rigid chemical reaction, so as to product a liquid easily and economically extrcted by metals and salts.

本发明提供一种从含盐天然水中回收金属和盐如锂的方法，通过使用一系列蒸发池以控制含这类金属的盐水的蒸发而无须强烈的化学反应以生产一种金属和盐能更容易和经济地提取出来的流体。

The demetalation of Ni-OEP in the presence of H2 consists of two steps. The first step is hydrogenation of nickel porphyrin to nickel chlorin, and the second step is decomposition of nickel chlorin and the removal of nickel.

，也有相当一部分镍卟啉发生分解，脱除所配合的金属；镍卟啉的临氢脱金属反应过程分为两步，第一步是卟啉分子中一个吡咯环上的外环双键加氢生成镍卟酚，第二步镍卟酚分解，金属脱除。

The topics include structure and function of metal ions, metal chelates, siderophores, metal-containing proteins and biominerals in all biosystems.

其内容包括金属离子的结构和功能，金属螯合物，含铁细胞，金属蛋白，生物系统中的生物矿物质等。

Therefore, the melts and coalesces of Al during the combustion process can inhibit diffusion of nitrogen from outside due to collapse of the pores.

由于金属铝的熔点较低660℃，而金属锆的熔点较高1855℃，在燃烧反应的高温下，金属铝要熔融团聚，阻碍氮气向试样内部的渗透。

The thickness of the alloying layer is 80μm in the decarbonizing and then surface alloying, but only 15μm in the surface alloying directly. The content of cobalt which doesn't form carbide doesn't have a great difference in two processes, but that of tungsten and molybdenum make a great difference.

在两种渗金属条件下，表面合金层的非碳化物形成元素Co含量差别不是很大，而强碳化物形成元素W和Mo的含量却有着显著差异，直接渗金属的，表层W和Mo含量几乎为零，而脱碳后渗金属的，表层W和Mo总量最大达到6%左右。

In this paper, several coloring pigments were synthesized and the sheet metal powders were coated by these pigments with the technology of super powder preparing and particle compositing. The coated composite particles were prepared by these, and the metallic luster of the metal powders were defiladed. The mechanism and the processing conditions of composite particles were researched.

本论文以超细粉体制备及粒子复合技术为基础，在金属粉表面包覆一层红外透明性较好的着色颜料，遮盖金属粉的金属光泽，制备出包覆式复合粒子，对复合粒子的制备的机理及工艺条件进行了研究。

What's more, the begavior of the metals at excessively high temperature also differs from that at normal temperatures and can produce a condition in which the metal deforms slowly and continuously at a constant stress.

另外，在过高的温度下金属的反应也不同于正常温度，过高的温度会引起金属的缓慢变形和金属承受持续的恒定压力。

By Obtaining the absorption spectra of the metalloporphyrins at different potentials in deoxygenated solution and then following the spectra changes while the solution was being oxygenated, we were able to reveal the interaction of metalloporphyrins with O_2 at different valence states.

要了解金属大环化合物氧化还原型催化剂作用机制的一个重要问题，即是查明中心金属离子在什么价态下能与o：作用，以及相应价态的氧化还原电位。多数作者认为大环化合物中心金属离子为正二价M。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。