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本文研究了十三种金属离子在硫氰酸盐-氯化十六烷基吡啶(CPC)体系中的浮选行为。它是基于金属离子与硫氰酸盐(SCN~-)生成络阴离子后,再与阳离子表面活性剂 CPC 形成离子缔合物而进行浮选.在各自适宜的酸度下,Fe~(3+),Ag~+,Cu~(2+),Au~(3+),Bi~(3+),Cd~(2+),Co~(2+)和Ni~(2+)的浮选率为92—100%,而 Pb~(2+),Mn~(2+),Zn~(2+),Ca~(2+)和Mg~(2+)的浮选率低于20%或几乎不被浮选.浮选富集倍数较大、灵敏度高、选择性好,用于海水中微量铜和铁的测定,方法简便,结果满意.
In this paper, the flotation behavior of thirteen kinds of metal ions in thiocyanate-cetyl pyridinium chloride (CPC) system was studied. It is based on the formation of metal anions and thiocyanate (SCN ~ -) complex anions, and then with the cationic surfactant CPC form ion association and flotation.At each suitable acidity, Fe ~ (3+) , The flotation rates of Ag ~ +, Cu ~ (2 +), Au ~ (3 +), Bi ~ (3 +), Cd ~ (2+), Co ~ (2+) and Ni ~ (2+) Was 92-100%, while the flotation rates of Pb ~ (2 +), Mn ~ (2 +), Zn ~ (2 +), Ca ~ (2+) and Mg ~ (2+) were less than 20% Almost without flotation.Floating enrichment multiple, high sensitivity, good selectivity, for the determination of trace amounts of copper and iron in seawater, the method is simple and the results are satisfactory.