矿物浮选药剂水杨羟肟酸和F₂₀₃的HPLC分离和测定

来源期刊：中南大学学报(自然科学版)1996年第5期

论文作者：陈晓青 刘德全 丁宇 熊兴安 周春山

文章页码：120 - 124

关键词：浮选药剂; 高效液相色谱; 分离; 测定; 水杨羟肟酸; F₂₀₃

Key words：floating agents; HPLC; separation; determination; salicyl hydroxamic acid; F₂₀₃

摘    要：提出了一种用高效液相色谱法分离和测定矿物浮选用表面活性剂水杨羟肟酸和F₂₀₃的方法.在试验确定的最佳实验条件下,水杨羟肟酸的线性范围为(0.050～1.0)Mg/25mL,F₂₀₃的线性范围为(0.010～1.0)Mg/25mL.,两者混合测定时,其线性范围不变.人工合成样品的分析结果表明：水杨羟肟酸的回收率在88%～106%之间,F₂₀₃的回收率在85.5%～107%之间.还对矿物浮选后的实际样品进行了测定,得到单种药剂和混合药剂在矿物表面的吸附量符合一般等温吸附规律,并能很好地解释矿物浮选时药剂之间的协同作用.

Abstract: The separation and determination of salicyl hydroxamic acid and F₂₀₃ in flotation by HPLC on C 18 column is described. The best experimental condition is obtained. The linear range is (0.050～1.00) mg/25 mL for salicyl hydroxamic acid and (0.010～1.00) mg/25 mL for F₂₀₃ . The results of artificial synthetic samples show that the recovery is 88 0%～1062% for salicyl hydroxamic acid and 85 5%～1074% for F₂₀₃ . Finally, the practical samples after floatation have been determined. It has been found that the absorptivity of the single agent and the mixed agents on surface of the ores accords with isothermal absorption. The results can well explain the coordinate function of floatation agents in ore floating process.