申请人:Central Glass Company, Limited
公开号:EP0999195A1
公开(公告)日:2000-05-10
The invention relates to a method for preparing a fluorinated product that is a first perhalogenated five-membered cyclic compound (e.g., 1,2-dichlorohexafluorocyclopentene and 1,1-dichlorooctafluorocyclopentane). This method includes reacting in a gas phase a starting material that is a second perhalogenated five-membered cyclic compound having at least one unsaturated bond, at substantially the same time with chlorine and hydrogen fluoride, in the presence of a fluorination catalyst containing an activated carbon optionally carrying thereon a metal compound, thereby to decrease the number of the at least one unsaturated bond and to increase the number of fluorine atoms of the second compound. The method is appropriate for the production of the first perhalogenated five-membered cyclic compound in an industrial scale.
本发明涉及一种制备氟化产物的方法,该氟化产物是第一种全卤化五元环化合物(如1,2-二氯六氟环戊烯和1,1-二氯八氟环戊烷)。该方法包括在气相中,在含有活性炭的氟化催化剂(活性炭上可选择携带金属化合物)存在的情况下,使具有至少一个不饱和键的第二种全卤化五元环状化合物与氯和氟化氢基本同时反应,从而减少至少一个不饱和键的数量,增加第二种化合物的氟原子数。该方法适用于工业化生产第一种全卤化五元环状化合物。