查询词典 oxidation

Researches in photosensitized catalytic oxidation under irradiation of sodium lamp were reviewed, especially the characteristics and mechanism of photosensitized catalytic oxidation of olefins, alkylphenols and complexes and their application.

加强光敏催化氧化反应的研究，在一些重要的有机化合物或有机中间体的合成中具有重要的意义和广阔的应用前景。

Through lots of tests, the new technology of preparing the polymeric ferric aluminum silicate sulfate by using the waste-acid of Ti02-industriy and the coal fly ash has been designed. The highest Al-acid stripping rate can be achieved by the waste sulfate acid under boiling degree for 1. 5h when the mass ratio between NaCl and Coal Fly ash is 0. 05:1, as well as that between Coal Fly ash and Waste Acid ratio is 1:10. By means of the oxidation-polymerized reaction under 40-50*C and normal pressure, using NaNCkas catalyst and air as oxidation, the polymeric ferric aluminum sulfate can be obtained. The poly-silicic acid is polymerized with soluble glass in the optimum conditions of pH=5-6 and the concentration of Si02 is about 3%. The inorganic high molecule coagulant of PFASS is synthesized with the poly-silicic acid into the solution of polymeric ferric aluminum sulfate.

本论文通过大量的试验，研究开发出了用粉煤灰及钛白废酸制取聚合硫酸硅酸铁铝的新工艺，其最佳工艺条件为：于沸点温度，以NaCl为助溶剂(NaCl与粉煤灰质量比为0.05：1)，以钛白废酸浸取粉煤灰(固液比为1：10)中的铝1.5小时，最大浸取率可达40％；经过滤洗涤后，调节滤液pH至2.0左右，以NANO_2为催化剂(NaNO_2用量为滤液中FeSO_4·7H_2O量的3％)，空气为氧化剂，于40-50℃进行常压催化氧化反应，制取聚合硫酸铁铝，催化氧化时间为2小时；将工业水玻璃稀释至3％左右，调节其pH于5-6，室温下制备活性聚硅酸；将活性聚硅酸与聚合硫酸铁铝按照一定比例复合，经熟化，即制得新型无机高分子混凝剂PFASS。

It is pointed out that under the condition of the temperature of 1120℃, the reaction time of 16 mm and the carbon content of 27%, the metal transformation rate of sponge iron used for general metallurgy is up to 90%. But the optimal carbon content is 29% for iron sponge to treat DSD acid oxidation wastewater. Under condition of the wastewater's pH value of 3 to 5 and the reaction time of 40min, the removal rates of COD and color are 68% and 90%, respectively. The BOD/COD ratio is up to 0.425 when DSD oxidation acid water is treated with sponge iron.

研究表明：在配碳量27%、反应温度1160℃、反应时间16min的情况下，以铁泥为原料制备的常规海绵铁的金属化率可达90%以上；用于处理DSD酸氧化废水的海绵铁适宜配碳量为29%，用制备出的海绵铁处理DSD酸氧化废水，在pH值3~5、反应时间40min时，出水的COD去除率可达68%、色度的去除率达90%、可生化性指标BOD/COD提高到0.425。

In the pH=7.00 phosphate buffer solution, the ethinylestradiol's electrical behavior has been studied in a detailsed way at the MWNT /graphite modified electrode. The results show that: the ethinylestradiol can generate a sensitive oxidation peak at about +0.550V on the MWNT /graphite modified electrode. The oxidative peak curent was linear to diethyl stilbestrol concentration over the range from 1.00×10-6 to 2.00×10-4 mol/L , the linear regression equation was ip= 2.4144+4.55×104cmol/L, the detection limit was 3.00×10-7 mol/L . The oxidation of ethinylestradiol was attributed to adsorption controlling process at MWNT /graphit modified electrode.

在pH=7.00的磷酸盐缓冲溶液中，利用MWNT/石墨修饰电极详细研究了乙炔雌二醇的电化学行为，结果表明：阳极扫描过程中，乙炔雌二醇在+0.550V出现一个灵敏氧化峰，该氧化峰电流与其浓度在1.00×10-6～2.00×10-4 mol/L的浓度范围内有良好的线性关系，线性回归方程为：ip= 4.14+4.55×104c，回归系数为：0.997，检测限为3.00×10-7 mol/L。

This is because the tea is warm in the long term under the conditions of production, not only taste different from other tea, tea in an important matter,"polyphenols" the degree of oxidation is relatively high, so a large amount of oxidation products can be played stomachic effect.

这是由于普洱茶是在长期温热的条件下生产的，不仅味道与其他的茶不同，茶叶中一种重要的物质"多酚"的氧化程度也比较高，因此能产生大量氧化产物，起到健胃的功效。

The samples with aluminide coatings for oxidation were put in air at 600 ℃ for 200 h, and those for sulfuration were put in flowing 99.98% SO2 at 600℃ for 50 h, and then SEM, EDS and XRD analyses were performed to understand the oxidation and sulfuration mechanisms of the coatings.

将沉积铝化物微晶涂层的Q235钢分别在600 ℃空气中氧化200 h和600 ℃ 99.98% SO2气氛中硫化50 h，然后进行SEM、EDS和XRD分析。

Oxidative bleaching by oxidation of its own to make a strong oxidation of colored substances were destroyed, so as to achieve the purpose of bleaching; food mainly used to restore the bleaching agent, mostly belonging to sulfurous acid and its salts, they are generated through the reduction of the role of sulfur dioxide can fruits and vegetables fade, it is widely used in food products such as bleaching and preservation.

氧化漂白是通过其本身强烈的氧化作用使着色物质被氧化破坏，从而达到漂白的目的；食品中主要使用还原漂白剂，大都属于亚硫酸及其盐类，它们通过产生的二氧化硫的还原作用可使果蔬褪色，因此广泛应用于食品的漂白与保藏等。

The effects of current density and oxidation time on thickness and hardness of the obtained anodic oxidation film were studied.

利用X射线，SEM分析了氧化膜的物相组成和表面微观结构，并对其电绝缘性能进行了测试。

In order to investigate the activity of bi-CoSPc to the higher thiol oxide, the 1-octanethiol oxidation rate was determined, the result showed that, the rate of 1-octanethiol oxidation increased with rising of reaction temperature, concentration of catalyst, and concentration of alkali.

结果表明：在相同反应条件下，与CoSPc相比，bi-CoSPc对正辛硫醇的氧化过程具有更高的催化活性；反应温度的升高，催化剂浓度的增加及碱液浓度的提高，均有利于硫醇的催化氧化反应。

At the same time, the scuttle structure of ablation shaped by the reverse process lead the layer of interest exposed to the air to suffer oxidation and infiltration of urania, which is favourable to interlayer oxidation and mineralization of uranium.

同时，反转作用形成的剥蚀构造天窗，使目的层裸露于地表，接受含氧含铀水的渗入和氧化作用，为层间氧化带及其铀矿化的形成创造了有利条件。

Panorama Many people are dancing in a large sitting room.

在一个大客厅里，许多人在跳舞。

We fully understand how a microwave oven cooks food, it is first necessary to talk ...

我们充分理解一个微波炉煮的食物，这是首先要谈。。。