查询词典 oxidation

The oxidation behavior of reaction-bonded silicon carbide,and the effects of process parameters on the oxidation,were studied.

摘 要：研究了反应烧结碳化硅材料900℃的氧化过程以及制备参数和掺杂元素对氧化过程的影响。

The article is carrier with grain of 2 oxidation silicon, use ultrasonic chemistry silver-gilt method, preparation gives silver / 2 oxidation silicon is compound grain, undertook token of silver-colored content analysis and XRD, SEM to the product, studied the performance fighting bacterium of compound grain mainly.

本文以二氧化硅颗粒为载体，利用超声波化学镀银方法，制备出银/二氧化硅复合颗粒，并对产品进行了银含量分析和XRD、SEM表征，重点探究了复合颗粒的抗菌性能。

The anti-oxidation effect is not remarkable when the composite is alone pre-impregnated in HBO2 or TESO soaker. The anti-oxidation property is good for the composite pre-impregnated in H3PO4 or H3PO4+HBO2 mixed solution soaker. The mass loss rate oxidated at 900℃ for 2h are 0.40% and 0.33% respectively.

单独预浸涂以硼酸或TEOS为主的浸渍剂后，试样抗氧化效果不明显，而预浸涂以磷酸或磷酸+硼酸混合液为主的浸渍剂效果较好，900℃，2h静态氧化质量损失率分别为0.40%和0.33%。

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。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。