氯甲烷

用GCECD的方法对不同纬度氯甲烷浓度的分析研究表明，大气中氯甲烷的全球浓度表现出从赤道向两级递减的趋势。

GC ECD method was used to analyze the concentration of methyl chloride in atmospheric samples collected from different latitude . The experimental results show that the atmospheric concentrations of methyl chloride show a tendency to decrease towards the poles .

本研究采用甲醇和氯化氢为气相原料，浓度为75～79%的氯化锌水溶液为催化剂，于鼓泡揽拌釜中，在413～423K下进行气液相反应生成氯甲烷。

The gas-liquid phase reaction of the formation of methyl chloride from gaseous methanol and hydrogen chloride with 75 & 79 % aqueous zinc chloride solution as catalyst in a bubble agitated reactor was studied .

溴氯甲烷分子最高占有轨道的电子动量谱学研究

Electron momentum spectroscopy of the highest occupied molecular orbitals of Chlorobromomethane

氯甲烷干燥塔的干燥及其使用周期的探讨

Discussion for Operation Cycle and Drying of Methyl Chloride Drying Tower

万吨级氯甲烷生产装置技术改造

Technique Reform on the Production Set of Chloromethane of Ten thousand Ton Grade

氯甲烷接触史是诊断的重要依据。

Contact history provided important basis of diagnosis .

顶空气相色谱法测定氯甲烷工业废水中挥发性卤代烃

Determination of the Volatile Halohydrocarbons in Chloromethane Industrial Waste Water by Headspace Gas Chromatography

氯甲烷的海洋生物地球化学研究

Studying on Marine Biogeochemistry of Methyl Chloride

以海洋和植物排放为主的天然源，释放的氯甲烷类的含量最高。

Natural source which was dominated by marine and orchard released high level of methyl chloride .

膜法回收有机硅尾气中氯甲烷流程设计与优化质子交换膜燃料电池堆运行参数优化设计

The Design and Optimization of Membrane Process for Chloromethane Recovery from the Vent Gas of Organic Silicon

氯甲烷含水量和回收率是衡量氯甲烷回收装置性能的两个重要指标。

Chloromethane water content and recovery rate are two important indexes to estimate the performance of recovery device .

甲醇和氯化氢气&液催化反应生成氯甲烷反应动力学的研究

A Kinetic Study on the Formation of Methyl Chloride from Methanol and Hydrogen Chloride by Catalytic Gas-Liquid Reaction

热导校正因子的估算以及在工业氯甲烷生产中的应用

Estimation and Calculation of Response Factors of Thermal Conductivity Detector and Its Application to the Analysis of Industrial Monochloromethane

氯甲烷是合成甲基氯硅烷、纤维氯酯、季胺化合物、除草剂等的重要原料。

Chloromethane is an important material to produce organic silicon ( Methyl chlorosilicons ), cellulose , quaternary ammonium compounds , weedicide .

而作为合成甲基氯硅烷的基础原料，氯甲烷成本占甲基氯硅烷成本的40%，氯甲烷生产的经济规模化一直是制约我国有机硅行业发展的关键技术之一。

The economical scale of manufacture devices for chloromethane is one of the critical techniques to restrict the development of the national organosilicon industry .

氯甲烷在大气中的浓度较低，仅为10-12级别。

The atmospheric concentration of methyl chloride ( CH 3Cl ) is very low , only at 10 - 12 ( V / V ) level .

研究成果为氯甲烷含水量和回收率的质量控制提供了重要依据，也有助于提高氯甲烷生产过程的经济效益。

The research results is helpful for controlling chloromethane water content and recovery rate , and is helpful to improve the economic benefits of chloromethane recovery .

将软测量技术应用于氯甲烷回收过程的质量指标在线估计研究中，成功建立了基于机理分析的氯甲烷回收率软测量模型和基于支持向量机改进增量学习的氯甲烷含水量软测量模型。

Successfully established chloromethane recovery soft sensor model based on the mechanism analysis and chloromethane water content soft sensor model based on support vector machine improvement increment learning .

利用改进后的装置测定聚合级异丁烯、氯甲烷中微量水，平均相对标准偏差为5.8%，回收率为92.4%~1037%；

The improved device was used to determine micro water in isobutene or chloromethane , RSD was 5.8 % , and recoveries were 92.4 % ~ 103.7 % .

简要介绍了甲醇氢氯化法制备氯甲烷的3种技术路线：气-液相非催化法、气-液相催化法和气-固相催化法。

Three processes producing chloromethane by the hydrochlorination of methanol : gas liquid phase non catalytic process , gas liquid phase catalytic process and gas solid phase catalytic process were introduced briefly .

当氯甲烷与甲基三氯硅烷的量之比为1∶1～04∶1时，甲基三氯硅烷的转化率为416%～432%，二甲基二氯硅烷的收率为842%～850%。

When the ratio of methylchloride to methyltrichlorosilane were 1:1 ~ 0 4:1 , the transform ratios of methyltrichlorosilane were 41 6 % ~ 43 2 % and the yields of dimethyldichlorosilane were 84 2 % ~ 85 % .

通过对氯甲烷干燥塔的干燥、再生工艺过程的床层温度分布曲线分析以及干燥塔理论周期与实际使用周期比较，总结出干燥塔的合理使用周期，并对干燥塔的工艺操作提出改进建议。

Through drying the methyl chloride drying tower , analyzing the bed temperature profile on regeneration process and comparing the theoretical cycle and actual cycle , this paper gave the proper operation cycle and improving suggestions for drying tower operation .

并通过对原料配比、反应温度和反应时间的研究，得到了较佳的合成工艺条件：三苯基氯甲烷与氰化亚铜的最佳摩尔比为1：1.3，反应温度为130℃，反应时间为2.5小时。

The influences of reactant ratio , reaction temperature , reaction time on substitution reaction were studied . The better reaction conditions were obtained : molar ratio of trityl chloride and cuprous cyanide was 1:1.3 , reaction temperature was at 130 ℃, reaction time was 2.5h .

干燥效果直接影响聚合反应的平稳运行及丁基橡胶的质量，当塔底出口处氯甲烷中水和二甲醚的含量都小于5μg/g时，干燥塔运行正常。

The drying effect affected stability of the polymerization and quality of butyl rubber directly . When the content of water and dimethyl ether in the methyl chloride on bottom outlet of drying tower were both below 5 μ g / g , the drying tower ran normally .

介绍了有机蒸气渗透膜原理和分离过程特点，根据各生产过程工艺特点，概述了应用膜分离压缩冷凝集成技术，分离与回收乙烯、丙烯、氯甲烷和氯乙烯等有机蒸气过程。

This paper introduces the permeation mechanism of VOC in membranes and commonly used separation processes . According to the technical characteristics of every production process , recycling of VOC such as ethylene , propylene , chloromethane and chloroethylene by using combined technology of membrane separation and condensation is summarized .

大多数氯氟甲烷存留在平流层下部。

Most of the chlorofluoromethanes reside in the lower stratosphere .

电导法研究TiO2溶胶对水中微量氯代甲烷的光催化脱氯的作用

Photo-catalytic De - chlorination of Chlorinated Methane by Titanium Oxide Sol

对用纳米SiO2和纳米CaCO3补强三氯溴甲烷改性天然胶乳的性能进行了研究。

The performance of modified natural rubber latex by use of nano SiO_2 and nano CaCO_3 was studied .

对比F与氯代甲烷反应的机理分析表明，初级反应主要是F提取H形成HF，多级反应产生了电子激发态的产物分子。

The reaction mechanism was discussed : the primary reaction is mainly the channel of H abstraction , and multistage processes produce electronically activated molecules .

Pd（OAc）2与PPh3在氯代甲烷中的反应研究

Study of the reaction of PD ( oac ) _2 with PPH _ 3 in ccl_4