5Whittington B I, Johnson J A, Quan L P, et al. Pressure Acid Leaching of Arid-region Nickel Laterite Ore: Part II. Effect of Ore Type [J]. Hydrometallurgy, 2003, 70(1/3): 47-48.
7Li X B, Qi T G. Jiang X M, et al. New Technology for Comprehensive Utilization of Aluminum-Chromium Residue from Chromium Salts Production [J]. Transactions of Nonferrous Metals Society of China, 2008, 18(2): 463--468.
8Zhang Y, Li Z H, Qi T, et al. Green Manufacturing Process of Chromium Compounds [J]. Environ. Prog., 2004, 24(1): 44-50.
9Xu H B, Zhang Y, Li Z H, et al. Development of a New Cleaner Production Process for Producing Chromic Oxide from Chromite Ore [J]. Journal of Cleaner Production, 2006, 14(2): 211-219.
