首页>
外国专利>
A process for the purification of crude i,1,1, 2-tetrafluoroethane (f134a) containing 1-chloro-2, 2-difluoroethylene and/or c3 or c4 8chloro) fluoroinated olefins as unsaturated impurities
A process for the purification of crude i,1,1, 2-tetrafluoroethane (f134a) containing 1-chloro-2, 2-difluoroethylene and/or c3 or c4 8chloro) fluoroinated olefins as unsaturated impurities
