查询词典 oxidation process

On the basis of summarizing separation method of acetic acid-water system, we studied the azeotropic distillation process of acetic acid-water system, selecting butyl acetate, isobutyl acetate and isopropyl acetate as entrainers. The influence of packing height, ratio of water to entrainer and acetic acid initial concentration to separation effect of azeotropic distillation was studied in detail. Simulation calculations of general distillation and azeotropic distillation were carried out. The influence of reflux ratio, theoretical plate, feed position, feed temperature and feed concentration to distillation process were discussed. Preferred process operation parameter, which had guiding meaning to practical production of distillation process were obtained. Basic data for the process amplifying design of azeotropic distillation tower were provided. Invest and operation energy consumption of two distillation methods were compared. The elementary technical design of azeotropic distillation tower was carried out on the basis of result of simulation calculation. The type of major auxiliary equipments and inner parts of packed tower were selected.The research results are as follows:(1) Butyl acetate, isobutyl acetate and isopropyl acetate could be selected as entrainer, and separation effect was near.

本文在综述醋酸-水体系分离方法的基础上，以醋酸丁酯、醋酸异丁酯、醋酸异丙酯为挟带剂，对醋酸水溶液进行共沸精馏过程研究，详细研究了填料高度、水与挟带剂的配比、醋酸初始浓度等对共沸精馏分离效果的影响；对醋酸-水体系进行普通精馏和共沸精馏过程模拟计算，讨论了回流比、理论板、进料位置、进料温度和浓度对精馏过程的影响，获得了对醋酸-水体系精馏过程实际生产具有指导意义的较佳的工艺操作参数、共沸精馏塔的工艺设计放大的基础数据，并对两种精馏方法的投资、操作能耗进行了比较；同时在共沸精馏模拟计算的基础上进行了共沸精馏塔的初步工艺设计计算，并对填料塔的主要辅助设备及塔内件进行了初步选型。

Based on the construction requirement of high-speed railway, some problems are dealt with during the whole construction project, like the mould process, concrete iron process, concrete process and the pre- stressed concrete process. This paper makes a research for the construction process of double track box girders, and submit the specific key points on every link in the production chain.

根据高速铁路建设和施工规范的要求，通过对双线整孔简支箱梁预制工艺的研究和工序的分解，从总体施工方案、模板施工工艺、钢筋制作安装工艺、混凝土施工工艺、预应力施工工艺等方面进行了详细的阐述，并提出各个施工环节的具体要点和注意事项。

The Automatic Control Valves ABS is ABS for short, which is based on the conventional brake system security technologies to enhance improved by controlling the brake hydraulic flaps to achieve control of the wheel locking, the braking process , only when the wheels tend to be controlled when locking, ABS will tend to locking of the wheels anti-lock brake pressure regulation; in the control wheel was not tended to locking, the braking Butterfly Valves process and the conventional system exactly the same dynamic system, the braking process, its work process is actually locking - release - Locking - release cycle of the working process, the vehicle is always in the critical state of locking of the roll gap.

而ABS是制动防抱死系统的简称，它是在常规制动装置基础上的加强改进的安全技术，通过控制刹车油压的收放，来达到对车轮抱死的控制，在制动过程中，只有当被控制车轮趋于抱死时，ABS才会对趋于抱死车轮的制动压力进行防抱死调节；在被控制车轮还没有趋于抱死时，制动过程与常规制动系统的制动过程完全相同，其工作过程实际上是抱死—松开—抱死—松开的循环工作过程，使车辆始终处于临界抱死的间隙滚动状态。

Based on the research on the evolution mechanism of information ecological communities,and by the use of the system development view and the related theories of complex systems,this paper redivides the evolution process into formative process,linear evolution process,non-linear evolution process and dissolution process according to the essential characteristics of information ecological communities.

本文在信息生态群落演化机理的研究基础上，运用系统发展观和复杂系统的相关理论，根据信息生态群落演化过程的本质特点，对演化过程进行了重新划分：信息生态群落的结体创生过程、线性常规演化过程、非线性超常规演化过程和分化解体过程。

Based on the research on the evolution mechanism of information ecological communities,and by the use of the system development view and the related theories of complex systems,this paper redivides the evolution process into formative process,linear evolution process,non-linear evolution process and dissolution process according to the essential characteristics of information ecological communities.

李北伟；靖继鹏；王俊敏；刘智喜本文在信息生态群落演化机理的研究基础上，运用系统发展观和复杂系统的相关理论，根据信息生态群落演化过程的本质特点，对演化过程进行了重新划分：信息生态群落的结体创生过程、线性常规演化过程、非线性超常规演化过程和分化解体过程。

Parts of the Process Analysis、Process improvements、Die with a complete composite blanking process Piercing 、Expounded washers composite Die Blanking the overall structure and characteristics of the process, Should pay attention to the issue of sexual and assembly process ,Piercing the settlement sheet、 And seam compound die punch slender easily broken、Hole coaxial hard to ensure the short life and die of technical problems.

通过对零件的工艺分析，改进了工艺方案，用一套复合模完成落料冲孔工序，阐述了垫圈冲裁复合模具的整体结构特点及工作过程，应注意的问题和装配工艺性。解决了薄板冲孔、冲缝复合模的凸模细长易断、孔的同轴度难以保证以及模具使用寿命短的技术问题。改进了落料、冲孔、冲缝的制作工艺，设计了一套新型复合冲裁模，提高了工件的同轴度精度，延长了模具的使用寿命。

The first stage was actually the primary purification process, in which most of inorganic ammonium and some total ammine can be removed along with the primary purification process, the second stage was liquid phase oxidation method by sodium hypochlorite, in which inorganic ammonium and total ammine can be further removed.

一段除铵为原有的尾盐一次精制工艺。研究发现，在一次精制的同时，可以除去尾盐中的大部分无机铵及部分总胺，二段除铵采用次氯酸钠液相氧化法，以进一步除去尾盐中无机铵及总胺。

The paper first constructs the relating technology framework between coal low temperature self-heating thermal properties parameters and spontaneous combustion, by means of testing on coal samples of diffusibility relative to oxygen, gas-producing simulation in self-ignition process, adiabatic oxidation process, coal spontaneous combustion processing simulation, coal basic physical and chemical parameters, thermal analysis by differential scanning calorimeter , differential thermal analyzer , Thermogravimeter .

通过对试验煤样进行煤对氧的扩散特性试验、煤自然发火过程中气体产物模拟实验、DSC差示扫描量热热分析测试、DTA与TG热分析测试、煤自然发火绝热氧化过程试验、煤自然发火过程模拟试验、煤基础物理化学参数测试的试验研究，就煤对氧的扩散与吸附特性、煤自燃氧化过程中的热力特性与气体产物特性及其与煤自然发火过程之间的相关特性进行了较系统的研究，初步建立了煤低温氧化自热热物理特性参数与煤自然发火之间相关联的技术内涵。

In order to Shanghai Hongqiao solid waste incineration process, the bag filter dust removal efficiency of 99.5%; to "dry except acid than acid + wet" treatment process, hydrogen chloride removal on the rate of 99% of the sulfur oxidation material could be removed in 95% of hydrogen fluoride could be removed in 90%; for the treatment of heavy metals in the main to take "effective capture" and "low control" measures, and adsorption using activated carbon, activated carbon for mercury, cadmium, removal of heavy metals such as lead up to 90%.

在以上海江桥生活垃圾焚烧过程中，布袋除尘器除尘效率可达99.5%以上；采取"干式除酸＋湿法除酸"处理工艺，对氯化氢的去除效率可达99%、对硫氧化物的去除效率可达95%、对氟化氢的去除效率可达90%；对于重金属的处理主要采取"高效捕集"和"低温控制"措施，并用活性炭进行吸附，活性炭对汞、镉、铅等重金属的去除率可达90%以上。

Based on a detailed investigation of present utilization and recovery ofpyrite cinder, the preparation process of poly ferric sulphate was discussed in this article and good results were gained. The whole experiment process was divided into three parts - reduction roasting pyrite cinder, vitriol lixiviation and catalytic-oxidation polymerization.

本课题结合重点企业委托的实际科研项目，以武钢金山店铁矿硫酸厂的硫铁矿渣为主要原料，在对目前硫铁矿烧渣回收及利用现状进行综合考察的基础上，探讨利用硫铁矿烧渣制取高附加值的无机高分子絮凝剂PFS的制备工艺，取得了良好的效果。

Molecular Distillation is a kind of high vacuum distillation method, which is suitable for the separation of high boiling, heat sensitivity and viscidity products.

分子蒸馏技术是一种在高真空条件下进行的连续蒸馏过程，适合于分离高沸点、热敏性及具有生物活性的混合物。

They are to the Noughties what yuppies were to the Eighties .

那在六十年代是时髦的，但在八十年代肯定是过时了