查询词典 oxidation process

In this paper,investigation has been made on the process for the synthesis of salicylaldehyde by esterification-oxidation with phenol,paraformaldehyde,boric acid as initial materials.

探索了以苯酚、硼酸和多聚甲醛为原料的酯化氧化法合成水杨醛的工艺路线，根据反应特点，改进了酯化反应方式，采用了多聚甲醛气态解聚法作为羟甲基化反应的进料方式，探讨了羟甲基化反应温度、多聚甲醛原料含水量、催化氧化反应催化剂用量对反应收率的影响并得到最佳反应条件，水杨醛收率为60.5%，纯度达98%以上。

The oxidation of nickel powder was avoided in the process of storage and use by using nitrogen mixed with a little air and inert gases to passivate the surface.

结果表明：采用沉淀转化一热分解技术，通过隔膜电解造液，常温常压下的复杂镍盐沉淀控制，气氛调控下的热分解和表面防氧化处理，成功地生产出了理化性能优于INCO公司同类型镍粉的特种镍粉。

The TiO2 synthesized by normal and reverse micelles as templated were applied for phot ocatalytic of Rhodamine B and organic toxic small molecule 2.4-dichlorophenol under ultraviolet irradiation. Oxidation species and photodegradation products in the photoreaction process were detected for studying their photocatalyst properties. The results showed that: the R-TiO2 had a better photocatalysis property under UV irradiation when photodegradation of RhB and DCP compared to the N-TiO2. After 160min, the mineralized rate of RhB can be 95%. And the oxidative species was mainly referred to OH radical.

利用正相和反相胶束介质模板制备的纳米TiO2为光催化剂，在紫外光照射下，对染料罗丹明B和有机有毒无色小分子2，4-二氯苯酚进行光催化降解，研究了其光催化性能，并对光催化过程中氧化物种及降解产物进行了跟踪测定，结果表明，反相胶束模板体系制备的纳米TiO2与正相胶束介质制备的纳米TiO2比较，在紫外照射下对RhB及DCP的降解有较好的光催化性能，对RhB在160min尤催化矿化率可达95%，光催化反应主要的氧化物种涉及在基自由基。

Oxidation, diffusion, photoetching process and etching technology were adopted to achieve thin silicon foil with a thickness of 3 to 4 micrometers. The surface roughness was about 10nm and the grain size of silicon foil was nanometer scale. The preparation parameters were studied to control the roughness of thin silicon foil .

通过台阶仪测量厚度在3～4μm的Si平面薄膜，在扫描范围为1000μm时，它的表面粗糙度为几十纳米；SEM测量表明，Si薄膜表面颗粒度在纳米量级；探讨了采用控制扩散、腐蚀参数和表面修饰处理来降低Si膜表面粗糙度的方法。

In this paper, the principle and process of the acidic potassium permanganate oxidation was analyzed, combined with years of practical experiences, the influencing factors were summarized, and put forward several matters to need attention.

文中通过对酸性高锰酸钾氧化法原理和过程的分析，并结合多年的实践经验，总结出在实际监测中，影响COD测定的几个因素，并针对各种影响因素提出了注意事项。

Installed in surface aeration oxidation ditch with prepositive denitrification treatment, using the role of the mixture Gravity, it can achieve any reflux ratio requirements of process design by adjusting the cross-section area of water.

安装在设置有前置反硝化区的表曝型氧化沟内，利用混合液重力流的作用，通过调节过水断面面积，实现工艺设计的任意回流比要求。

The kinetics of Prussian blue film itself during the redox process and of the catalytic oxidation of ascorbic acid (AH2) on it have been studied in detail.

本文详细研究了普鲁士蓝薄膜本身电荷传输过程的动力学及PB 薄膜催化抗坏血酸(AH2)电氧化的动力学。

This paper discusses the techniques of soft-sensor and strategy of advanced control of the oxidation reaction in PTA process.

本文的主要研究内容为软测量技术在大型PTA生产过程控制中的应用。

Mechanism of catalyzed oxidation of SO2 with pyrolusite suggested that the process was combined catalysis in the presence of Mn and Fe both in solution and solid.

软锰矿催化脱硫的机理分析表明，过程是液相Mn、Fe协同催化与固相催化作用相结合。

As a working hypothesis, we propose that the occupancy of the quinol oxidation site and the movement of the Rieske protein may be pivotal in this regulation process.

我们假设，PQ结合于细胞色素b〓f中的Qo位点，诱导Rieske蛋白的构象发生相应变化是调节状态转换的关键步骤。

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。