(1. 昆明理工大學(xué) 冶金系， 昆明 650093;
2. 昆明冶金研究院 冶煉室， 昆明650031)
摘 要: CoSbH2O系電位pH圖表明， 在鋅粉置換除鈷過程中，銻與鈷形成金屬間化合物，從而提高了鋅粉置換除鈷的熱力學(xué)推動(dòng)力。 掃描電鏡觀察及X射線衍射結(jié)果表明， 銻與鎳和鈷的存在形式相同， 進(jìn)一步說明鈷與銻形成金屬間化合物， 而鋅則以堿式硫酸鋅、 氧化鋅和金屬鋅的形式存在。
關(guān)鍵字: Sb2O3；硫酸鋅電解液； 除鈷
（1. Department of Metallurgy, Kunming University of Science and Technology， Kunming 650093, P.R.China;
2. Department of Metallurgy, Kunming Metallurgy Research Institute， Kunming 650031, P.R.China）
Abstract:PotentialpH pattern of CoSbH2O system shows that the thermodynamic driving power of removal of cobalt by cementation using zinc powder is raised when metallic compound (CoSb) is formed between cobalt and antimony during removal of cobalt by cementation using zinc powder; scanning electron microscopy and Xray diffractiondisplay that antimony exsits in the same forms with nickel and cobalt. It is clear that cobalt and antimony form metallic compound (CoSb)， zinc exsitsin the forms of basic zinc sulphate， zinc oxide and zinc.
Key words: Sb2O3； zinc sulphate electrolyte； removal of cobalt
