氯乙烯

The outlets of methane tetrachloride produced in the production facilities of chloromethane in China at present were proposed,such as conversion to diphenyl ketone ,ethylene tetrachloride,cinnamic acid,trichloroacetyl chloride,methane chloride and chloroform.

提出了目前我国氯甲烷生产装置副产的四氯化碳的出路：转化成二苯甲酮、四氯乙烯、肉桂酸、三氯乙酰氯、一氯甲烷、氯仿。

Chemical Engineering Institute, Qingdao University, Qingdao 266071, ChinaAbstract: The compatibility and process property of PVC/HDPE blends were studied on the basis of using vinyl chloride/ethyl acrylate copolymer as a compatibilizer, thus polyvinylchloride/(vinyl chloride/ethyl acrylate)/, ie.

以氯乙烯-丙烯酸乙酯共聚物作为聚氯乙烯和高密度聚乙烯的增容剂，研究了共混物的相容性和加工性能，在此基础上研制了聚氯乙烯/氯乙烯-丙烯酸乙酯共聚物/高密度聚乙烯合金，进而研究了合金的力学性能。

In the best condition of headspace and chromatogram, the mensuration of aquatic trace volatile can get a satisfaction result such as chloroform , carbon tetrachloride , trichloroethylene and perchlorethylene, all relativity standard deviation RSD is less than 4%,all the correlation coefficient R is larger than 0.99, and the relative error is less than 3%.

在选择最佳的顶空和色谱条件下，测定水中痕量挥发物三氯甲烷，四氯化碳，三氯乙烯和四氯乙烯可获得令人满意的结果，相对标准偏差RSD均小于4%，相关系数R均大于0.99，相对误差小于3%。

These solvent vapor degreasers meet recentEPA and NESHAP guidelines for use with trichloroethylene and perchloroethylene.

这些溶剂汽油去污设备的达到了最近新出台的EPA和NESHAP对三氯乙烯和四氯乙烯的使用准则。

The detection limit was 10 times better than the conventional SPME method. Under the optimized analytical conditions, aqueous samples of trichloroethylene/perchloroethylene (20 μg/L) and benzene/toluene (10 μg/L) were analyzed. The δ13C fractionation compared to pure-phase and headspace analysis was less than 0.5‰.

在优化的条件下，对20 μg/L的三氯乙烯/四氯乙烯和10 μg/L的苯/甲苯水溶液进行了单体碳同位素分析，相比于纯溶剂碳同位素值，顶空同位素分析误差不超过0.5‰，而样本标准偏差为0.3‰。

The measurement shows that 310.8 nm is the suitable wavelength for detection of trichloroethylene and 322.5 nm is the suitable wavelength for detection of tetrachloroethylene in this wavelength range.

研究表明，该波长范围内三氯乙烯的最佳检测波长为310.8 nm，四氯乙烯的最佳检测波长为322.5 nm。

The model preferably predicted the photocatalytic degradation of other compounds, such as trichloroethylene, tetrachloroethylene, p -di chlorobeneze and carbon tetrachloride.

模型较好地预测了其他化合物如三氯乙烯(TCE、四氯乙烯、对-二氯苯和四氯化碳的光催化降解。

The objective of this study is to study the kinetic parameters of surfactant-enhanced permanganate oxidation of tetrachloroethylene, and then compared them with the parameters of trichloroethylene studied in other literatures.

本研究主要目的为利用界面活性剂配合过锰酸钾降解水中之四氯乙烯(tetrachloroethylene， PCE)，以求得PCE之相关动力参数，再与文献中三氯乙烯(trichloroethylene， TCE)之动力参数做比较。

Organic chlorine compounds, including hexachlorethane , pentalin , hexachlorobutadiene, HCB, pentachlorobenzene, dioxin, gammexane, tetracarp, carbon tetrachloride , chloroform and etc.

有机氯化合物，包括六氯乙烷、五氯乙烷、六氯丁二烯、六氯苯、五氯苯、二恶英、六六六、四氯乙烯、四氯化碳和氯仿等污染物。

Wedgeplug O-Seal plug valves with their positive, no-leak features are not only recommended as the best general purpose valves for handling hydrocarbons, vegetable oils, solvents, etc., but are ideal for such tough service as butane, propane, butadiene, acetone, ethyl alcohol, ammonia, anhydrous ammonia, benzene, vinyl chloride, dry chlorine, Dowtherm, ethane, ethylene, hydrogen chloride, napthalene, oxygen, hydrogen, phthalic anhydride, dry phosgene, phosphoric acid, potassium carbonate, styrene, molten sulphur, sulphur dichloride and related services within a temperature range from -300oF to + 450oF within pressure limits of the valves.

楔塞O形密封旋塞阀具有积极的、无泄漏特性，不但是最好的通用的阀门，用于处理碳化氢，植物油，溶剂等，还特别适用于严酷的应用环境，如丁烷，丙烷，丁二烯，丙酮，乙醇，氨，无水氨，苯，氯乙烯，干氯，道氏热载体，乙烷，乙烯，氯化氢，萘，氧，氢，邻苯二甲酸酐，干碳酰氯，磷酸，碳酸钾，苯乙烯，融化硫，二氯化硫，以及温度在-184oC至232oC之间，压力在阀门额定压力等级范围内的有关应用。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。