The study with barium hydroxide to remove sulphur from the monowater lithium hydroxide.The best technology condition of testing is:barium hydroxide added is 22% of the theoretical amount,barium hydroxide of which the concentration is 19.6g/L,ageing time is 2 hours,ageing temperature 40℃,concentration of the SO 2- 4 of the liquor is reduced from 6.8g/L to 2.3g/L.
