氯甲烷

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。

Including high-purity synthetic hydrobromide, hydrogen bromide acetic acid solution, hydrogen bromide acetone \ dichloromethane solution, sodium bromide, calcium, ammonium and other inorganic bromide, Bromochloromethane second bromomethane, 1 - bromo --3 - chloropropane organic bromide.

包括高纯度合成氢溴酸、溴化氢醋酸溶液、溴化氢丙酮\二氯甲烷溶液、溴化钠、钙、铵等无机溴化物，溴氯甲烷、二溴甲烷、1-溴-3-氯丙烷等有机溴化物。

The consumption of methyl chloride which is the main raw materials for synthesizing methylchlorosilanes is about forty percent of cost of methylchlorosilanes.

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。

Separation and recovery process principles of tail gases in producing dimethyl phosphite were introduced; Separation and recovery courses of hydrogen chloride and methyl chloride in tail gases were also analyzed. The percent recovery for hydrogen chloride and methyl chloride is over 99.9% and 93%, respectively, by using the process of combining stage recycle of solvent with lower temperature.

介绍了亚磷酸二甲酯生产中尾气回收的工艺原理，对尾气中氯化氢及氯甲烷的分离回收过程进行了分析；提出了采用吸收剂分段循环和降温相结合的回收工艺，将此工艺应用于3万t/a的亚磷酸二甲酯的生产装置的尾气回收上，可使氯化氢的回收率达99.9%，氯甲烷的回收率达93%以上，盐酸质量分数大于30%，尾气中氯甲烷的质量分数小于5%。

Project Contents: Methane chloridate is a kind of chemical product including monochloro methane, dichloro methane, trifluoro methane, tetrachloromethane. It is an important chemical material and solvent.

建设内容：甲烷氯化物是一氯甲烷、二氯甲烷、三氯甲烷、四氯化碳四种甲烷氯化物的总称，是主要的化工原料和溶剂。

Results Inbreathe and dermal exposure to THMs in reclaimed water were the main ways of exposure for occupational worker and general populations in road clearing and public garden virescence in Beijing.

结果 再生水中氯仿、一溴二氯甲烷、二溴一氯甲烷、三溴甲烷的浓度分别为0.875~108、0.06~11.0、未检出～5.82、未检出～3.04μg/L。再生水回用于道路压尘、公园绿化，人群通过吸人和皮肤两种途径暴露于再生水，吸人暴露为主要途径，其消毒副产物THMS中。

Polyester nanofiber can be prepared by electrospinning process from PET chips separately dissolving in three kinds of solvents,namely,the mixture solvent of phenol and tetrachloroethane ,trifluoroacetic acid and the mixture solvent of trifluoroace- tic acid and dichlormethane.

利用静电纺丝法制备聚酯纳米纤维，选择苯酚和四氯乙烷，三氟乙酸，三氟乙酸和二氯甲烷3种溶剂分别溶解PET切片进行静电纺丝，通过扫描电子显微镜对纤维表面形态进行观察，结果表明：三氟乙酸和二氯甲烷混合溶剂溶解PET制备的电纺纤维较好。

Preparation of trifluoroacetaldehyde and trifluoroacetic acid by trifluoroethanol catalytic oxidation;2. Polyester nanofiber can be prepared by electrospinning process from PET chips separately dissolving in three kinds of solvents,namely,the mixture solvent of phenol and tetrachloroethane, trifluoroacetic acid and the mixture solvent of trifluoroace- tic acid and dichlormethane.

利用静电纺丝法制备聚酯纳米纤维，选择苯酚和四氯乙烷，三氟乙酸，三氟乙酸和二氯甲烷3种溶剂分别溶解PET切片进行静电纺丝，通过扫描电子显微镜对纤维表面形态进行观察，结果表明：三氟乙酸和二氯甲烷混合溶剂溶解PET制备的电纺纤维较好。

We studied chemical reaction between nitrogen oxides with dichloromethane, trichloromethane, tetrachloromethane and 1, 2-dichloroethane by Laser Magnetic Resonance.

用激光磁共振方法研究二氯甲烷、三氯甲烷、四氯甲烷、1，2-二氯乙烷与氮氧化物在火花放电、紫外光照射条件下的化学反应。

It's planned to build the production installation and auxiliary facilities with annual production of 100000 ton/year and the production are dichloro methane, trifluoro methane, and tetrachloromethane.

建设规模及产品方案：拟新建年生产能力10万吨甲烷氯化物生产装置及配套设施，产品为三氯甲烷，二氯甲烷，四氯甲烷。

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。