Process for obtaining a hydrofluoroalkane which is purified of organic impurities, according to which the hydrofluoroalkane containing organic impurities is subjected to at least one purification treatment chosen from
(b) a reaction with hydrogen fluoride
(c) a distillation in which the purified hydrofluoroalkane is removed from the top of the distillation column or from the side
(d) an extractive distillation
(e) an adsorption onto a solid adsorbent
(f) a reaction with a compound containing oxygen, and
(g) a reaction with a compound containing oxygen and a gas-phase reaction with a reagent capable of reacting with at least some of the organic impurities, with the exception of a reaction with elemental chlorine.
获得净化了有机杂质的氢
氟烷烃的工艺,根据该工艺,含有机杂质的氢
氟烷烃要经过至少一种净化处理,这些净化处理选自: (a) 与
氟化氢反应
(b) 与
氟化氢反应
(c) 蒸馏,在蒸馏过程中,从蒸馏塔顶部或侧面移除净化的氢
氟烃
(d) 萃取蒸馏
(e) 吸附到固体吸附剂上
(f) 與含氧化合物反應,及
(g) 与含氧化合物反应,并与能与至少部分有机杂质反应的试剂进行气相反应,但与
氯元素的反应除外。