摘要
对白钨矿、苯甲羟肟酸的紫外吸收光谱、红外吸收光谱、浮选溶液化学等的研究表明 ,苯甲羟肟酸的最佳浮选区域为pH =7～ 10。用苯甲羟肟酸捕收白钨矿 ,在 3 7<pH <13 7区间内 ,白钨矿定位离子为Ca2 + ,苯甲羟肟酸与白钨矿表面的Ca2 + 发生O ,O螯合形成五元环螯合物 ,发生离子 分子共吸附作用 。
Ultraviolet absorption spectrum, infrared absorption spectrum and flotation solution chemistry were studied of scheelite and benzoylhydroxamic acid. The results have shown that benzoylhydroxamic acid has the optimum flotation pH values ranging from 7 to 10. At the range of pH 3.7 [similar to] 13.7 Ca2+ acts as a locating ion for scheelite, and O, O chelation takes place between benzoylhydroxamic acid and Ca2+ on the surface of sheelite to form five-membered ring chelate. At the same time Co-absorption between ion and molecule occurs, chieving the optimum flotation effect.
出处
《矿冶工程》
EI
CAS
CSCD
北大核心
2001年第3期39-40,共2页
Mining and Metallurgical Engineering
关键词
苯甲羟肟酸
白钨矿
溶液化学
作用机理
浮选
benzoylhydroxamic acid
scheelite
solution chemistry
reaction mechanism
