PROCESS FOR THE RECOVERY OF ANTIMONY PENTACHLORIDE FROM CATALYST SOLUTIONS

    公开(公告)号:CA959239A

    公开(公告)日:1974-12-17

    申请号:CA127863

    申请日:1971-11-17

    Applicant: HOECHST AG

    Abstract: The invention relates to the recovery of antimony pentachloride from catalyst solutions, which are used for the fluorination of chlorosubstituted methanes or ethanes. The process is based on the reduction of antimony pentachloride, which is dissolved in a used catalyst solution by means of trichloroethylene, at a temperature of from 100 DEG C to 170 DEG C. The crystalline antimony trichloride obtained precipitates from the solution and is separated from all the impurities. The antimony trichloride obtained can be re-oxidized to form antimony pentachloride by any known process.

Patent Agency Ranking