Introduce the advances for synthesis process of difluoromethane(HFC-32), analysis the processing featuring and developing prospect and points out two methods to remove monochloromonofluoromethane (HCFC-31) from reactant.
介绍了不同原料工艺、不同方法生产二氟甲烷(HFC-32)工艺技术进展情况,分析了各工艺的反应特点和发展前景,并介绍一种去除有毒副产物氯氟甲烷(HCFC-31)的方法。
Most of the chlorofluoromethanes reside in the lower stratosphere.
大多数氯氟甲烷存留在平流层下部。
The chlorofluoromethanes are used principally in aerosol spray cans and as refrigerants.
氯氟甲烷主要使用在气溶胶喷雾罐和作为冷冻剂。
trichloromonofluoromethane(freon 11)
三氯-氟化甲烷（氟利昂11）
dichlorodifluoromethane(freon 12)
二氟二氯甲烷（氟里昂12）
(F13) Trifluorochloromethane
GB/T9017-1988三氟一氯甲烷
bromochlorodifluoromethane [BCF] [halon 1211]
溴氯二氟甲烷〔1211灭火剂〕
bromochlorodifluoromethane [halon 1211] [CF2BrCl]
溴氯二氟甲烷〔哈龙1211〕
Study on the Separation of HCFC-22/HFC-23 Gas Mixture by Membrane;
膜法分离二氟一氯甲烷/三氟甲烷混合气的研究
Difluorochloromethane for tetrafluoroethylene productio
GB/T9016-1988四氟乙烯用二氟一氯甲烷
bromochlorodifluoromethane automatic type extinguisher
溴氯二氟甲烷（自动式）灭火器
Trichloromonofluoromethane for industrial uses
GB/T7371-1987工业用一氟三氯甲烷(F11)
Dichlorodifluoromethane for industrial uses
GB/T7372-1987工业用二氟二氯甲烷(F12)
Monochlorodifluoromethane for industrial uses
GB/T7373-1987工业用二氟一氯甲烷(F22)
Carbonize reaction of carbon difluro-choromethane and dacetonitrile;
二氟一氯甲烷(F_(22))的常温化学降解
Study on the Separation of Trifluoromethane/Hydrochloride Gas Mixture and Conversion of Trifluoromethane;
三氟甲烷/氯化氢气体的分离及三氟甲烷的转化技术研究
monochlorodifluoromethane (freon 22)
二氟一氟甲烷（氟里昂22）
Research on Reductive Dechlorination of Chlorinate Methane from Fluorine Industrial Wastewater by Iron Metal;
金属铁催化还原法处理氟化工甲烷氯化物废水
Adsorption of CFC-11 on Viscose Rayon-Based Activated Carbon Fiber
黏胶基活性炭纤维对三氯一氟甲烷的吸附性能