leach liquor
2.SEPARATION OF SCANDIUM BY HUMIC ACID FROM THE HYDROCHLORIC ACID-LEACH LIQUOR OF WOLFRAMITE RESIDUE
3.THE SEPARATION OF Co AHD Ni FROM A MODEL LEACH LIQUOR OF MANGANESE NODULES BY A LIQUID MEMBRANE TECHNIQUE
4.A test has been made for extrating Sc from magnanese ore by employing a chemical concentration process which consists of steps as sulphuric acid leach, extraction of the leach liquor, extraction of Sc from the organic phase, recovery of Co and Ni from residual extracted liquor and preparation of manganese carbonate from the pruified liquor.
6.In the process of evaporation-neutralization-crystallization, it was found that most of the impurities (iron, aluminum) in the concentrated leach liquor could be separated from beryllium, when the solution was adjusted to pH1.5 with ammonia gas and cooled to room temperature for crystallization, because of aluminum and iron forming ammonium alum and ferrous ammonium sulphate with the (NH4)2SO4 in the solution.
