Studies on Gaseous Phase Polymerization of Ethylene with Highly Active Catalyst(ⅰ)── The Gaseous Phase Homo-and Copolymerization as well as Kinetics of Gaseous Phase Polymerization of Ethylene 非均相悬浮聚合[作用]新型高活性催化剂乙烯气相聚合的研究(Ⅰ)&气相均聚和共聚反应及气相均聚动力学
The researches on boron particle combustion in gaseous phase were made. 硼粒子在气相中的燃烧研究。
The adsorption capability of cassava meal for gaseous phase selective adsorption for ethanol dehydration was investigated via a bench-test fixed-bed adsorber at constant temperature. 使用恒温固定吸附床对乙醇蒸汽脱水的木薯粉吸附剂的气相选择吸附性能进行研究。
Fumigants are pesticides acting in gaseous phase. 熏蒸剂是以气体形式作用的农药。
A study of the proton transfer process from halobenzoic acids to benzoic acid in water-ethanol mixtures compared with the same process in the gaseous phase is presented. 将在水乙醇混合溶剂中从卤代苯甲酸到苯甲酸的质子迁移过程与在气相中的同一过程进行了比较。
Critical point drying is an efficient method of drying delicate samples without damaging its structure through surface tension that occurs when changing from the liquid to the gaseous phase. 临界点乾燥用于易碎的试片是有效率的方法。透过避免因液态转换至气态所发生的表面张力,可使试片免于破坏。
Latest advances in the gaseous phase catalytic synthesis of difluoromethane and the preparation of catalysts are summarized. 综述了二氟甲烷的气相催化合成工艺及其催化剂制备的最新进展;
Relative performance of zeolites and activated carbon in gaseous phase adsorption and desorption of toluene 沸石分子筛和活性炭吸附/脱附甲苯性能对比
A kinetic method for the direct determination of CO_2 in gaseous phase is proposed, based on fading the phenolphthalein when CO_2 dissolves in dilute aqueous solution of NaOH. 本文基于气相中的二氧化碳在稀氢氧化钠-酚酞溶液中的溶解而使酚酞逐渐褪色的动力学行为提出了一种直接测定气相中微量二氧化碳的动力学分析法。
The small-scale devices are suitable for the hydrogen source of open-air analysis, hydrogen atom clocks, fuel cells and testing instruments such as gaseous phase chromatographs. 小型金属氢化物储存净化器适于野外分析、标准频标氢原子钟和气相色谱仪等测试仪器及燃料电池的氢气源。
To get the sub-grid LES equations, the compressible N-S equations of gaseous phase were filtered by two-dimensional box-filter function. 用二维盒式滤波法处理可压缩气相N-S方程,得到亚格子形式的LES控制方程;
Gaseous phase UV degradation of chlorobenzene: affecting factors and kinetics 紫外光降解气态氯苯的影响因素及其动力学研究
Gas chromatographic analysis of products from methanol gaseous phase oxo process 甲醇气相羰基化产物的气相色谱分析
Lab study and discussion on reliability of the gaseous phase detonating system and connection, on application safety were presented. 对气相起爆系统传爆的可靠性和连接的可靠性以及安全使用等方面进行了实验室研究和探讨。
In order to study the condition of motion of the gas and liquid inside the gas cyclone and the mechanism of separation, three-dimensional numeric simulation of internal flow field of gaseous phase and the motion condition of particles in it was conducted by using the software FLUENT. 为了研究旋风分离器内部气体和固体的运动状况与其分离机理,采用FLUENT软件对一旋风分离器内部气相流场和颗粒的运动状况进行三维数值仿真模拟。
This paper presents a review concerning the Ziegler-Natta catalysts for gaseous phase polymerization of ethylene and typical methods of preparing the catalysts. 本文综述了乙烯气相聚合催化剂研究状况,列举了一些制备气相聚合催化剂有代表性的方法。
The gaseous phase of hydride enrichment techniques have been systematically described in this paper. 本文从富集原理及其在光谱超痕量分析的应用方面分别对这几种氢化物发生后的气相富集技术进行了较详细地综述。
This article lead a reactive speed equation of gaseous phase double molecules in the theory of collision with the dynamics of gas molecules. 本文用气体分子动力学推导了碰撞理论中的气相双分子反应速度公式,它自然包括了校正因子P。
During the co-pyrolysis experiment of coal and natural gas on the air pressure fixed bed, gaseous phase chromatograph was used to analyze the gas in the pyrolysis processing and the SEM was used to study the surface micro structure of the coke. 在常压固定床上进行煤与天然气的共热解试验,采用气相色谱仪(GC)分析热解过程中的气体,同时利用扫描电镜(SEM)研究制得煤焦的表面微观结构。
The gaseous phase velocity flow field and the mass fraction of fuel evaporated are provided. 计算结果提供了不同转速下的气相速度场和燃料浓度场。
Analyzing the Components of Light Benzene and Purified Benzene Using Gaseous Phase Colour Spectrum Method 气相色谱法分析轻苯及精制苯的组成
The optimizing operation method was discussed from aspects of pressure of high pressure loop and gaseous phase adjustment, and the control of temperature, load, liquid retention time, and gas/ liquid ratio for the stripper. 从高压圈的压力和气相的调节以及汽提塔的温度、负荷、液体停留时间、气液比的调节方面论述了优化操作的方法。
Through the research of the above, we have formed a set of intact and practical technology of gaseous phase cathodic protection. 通过以上研究,形成了一套完整而实用的气相阴极保护技术。
The process, technological principle and characteristics of preparation of nan particles in solid phase, liquid phase and gaseous phase are generally reviewed. 文章较全面地概述了纳米颗粒固相、液相和气相的制备方法及工艺原理和特点。
In this way the metal has been protected, is called the gaseous phase cathodic protection. 这样就使金属得到了保护,称之为气相阴极保护。
Because the effects of transformation between the gaseous phase and the condensed phase are included, the system of fundamental equations is applicable to both equilibrium flow and frozen flow. 由于考虑了气相和凝相之间转化的效应,因而方程组对于平衡流和冻结流都是适用的。
The method for calculating gaseous phase heat and mass transfer coefficient in packed saturator/ warming tower was derived. The method for calculating the packing height based on these coefficients is discussed. 导出了计算填料型饱和热水塔气相传质系数和传热系数的方法,分析了应用气相传质系数和传热系数计算填料层高度的方法;
Because phenanthrene is evolved in the form of gaseous phase under liquid phase carbonization temperature, therefore higher content of phenanthrene will give unfavorable influence on liquid phase carbonization process. 由于菲在液相炭化温度下呈气相析出,因此高含量的菲对液相炭化过程会产生不利的影响。
Along with butylenes content in feedstock increasing, benzene content in fluid product decreases, while the contents of propane and H2 in gaseous phase products increase correspondingly. 随着原料中丁烯含量的增加,液体产物中苯含量降低,相应二甲苯的含量增加,气相产物中丙烷和H2含量升高。