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enrichment of rare earth by magnesium oxide from rare earth leaching liquor in magnesium salt system[J]. Journal of Rare Earths, 2019, 37(8): 886-894. [6] TIAN J, TANG X K, YIN J Q, CHEN J, LUO X P, RAO......
leaching liquor of high iron sphalerite[J]. The Chinese Journal of Nonferrous Metals, 2014, 24(9): 2387-2392. [8] 袁芳沁, 吴克明, 丁倩倩. 湿法炼锌除铁工艺的现状与展望[J]. 矿产综合利用, 2011(2): 30-32. YUAN Fang-qin, WU Ke-ming......
. Although the pH of the extract liquor is continuously increased to 13, the leached solution is still acidic (pH<3) after the leaching test because the sludge contained a bit of sulfuric acid solution......
and Chemistry, 1998, 53. [42] VAHA-SAVO N, DEMARTINI N, ENGBLOM M, BRINK A, HUPA M. The fate of char nitrogen in black liquor combustion-Cyanate formation and decomposition [J]. Industrial and Engineering......
. [20] CHEEMA H A, ILYAS S, MASUD S, MUHSAN M A, MAHMOOD I, LEE J C. Selective recovery of rhenium from molybdenite flue-dust leach liquor using solvent extraction with TBP[J]. Separation......
% and 25% solutions, respectively. Fig. 6 pH-H2SO4 concentration correlations at 20 °C in solutions with ferric ions (leaching liquor), iron-free (electrowinning electrolyte) and pure acid [36......