C - Chemistry – Metallurgy – 01 – D
Patent
C - Chemistry, Metallurgy
01
D
C01D 3/02 (2006.01)
Patent
CA 2305164
The invention relates to a process for recovering alkali metal fluorides and/or difluorides from waste mixtures containing alkali metal chlorides and/or alkali metal fluorides and/or difluorides and, optionally, organic compounds, by (a) subjecting a waste mixture comprising one or more alkali metal chlorides and/or one or more alkali metal fluorides and/or difluorides and, optionally, one or more organic compounds, to a thermal/oxidative pre-treatment and/or an extractive pre-treatment, and (b) bringing the pre-treated mixture into contact with hydrogen fluoride.
Aktiengesellschaft Bayer
Fetherstonhaugh & Co.
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