对羟基苯甲酸的溶剂浮选研究
STUDY ON THE SOLVENT FLOATATION OF p-HYDROXY BENZOIC ACID
摘 要
研究了对羟基苯甲酸溶剂浮选的浮选条件优化和回收动力学规律.考察了溶液的pH、通气速度、溶液离子强度、浮选时间、相比以及浮选溶剂等因素对对羟基苯甲酸浮选效率的影响,优选了浮选条件.研究表明对羟基苯甲酸的溶剂浮选过程符合一级动力学方程,表观速率常数随空气流速的增加而增大.
对羟基苯甲酸
动力学机理
Solvent floatation
p-Hydroxybenzoic acid
Kinetic mechanism
Abstract
Conditions of the solvent floatation of p-hydroxybenzoic acid,in cluding the pH and ionic strength of the solution,the rate of air-flow,time of floatation and the ratio of volume of the aqueous and organic solvent phase,and the efficiency of different kinds of organic solvents for the floatation process were studied and optimized.A study on the kinetic mechanism was also performed and it was found that the solvent floutation process followed the first kinetic equation,and that the apparent rate constant increases with the increase of rate of air-flow.
中图分类号 O652.6
所属栏目 工作简报
基金项目
收稿日期 2004/7/2
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备注张利静(1979-),女,满族,辽宁丹东人,硕士研究生,主要从事溶剂浮选法富集分离污水中有机物的研究.
引用该论文: ZHANG Li-jing,DONG Hui-ru. STUDY ON THE SOLVENT FLOATATION OF p-HYDROXY BENZOIC ACID[J]. Physical Testing and Chemical Analysis part B:Chemical Analysis, 2006, 42(5): 372～373
张利静,董慧茹. 对羟基苯甲酸的溶剂浮选研究[J]. 理化检验－化学分册, 2006, 42(5): 372～373
被引情况:
【1】赵立峰,马国军,张惠雄,沈少林, "高效液相色谱法同时测定酱菜中16种食品添加剂",理化检验－化学分册 47, 1478-1480(2011)
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参考文献
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【6】董慧茹,乐秀毓.溶剂浮选吸光光度法的理论与实践[J].化学通报,1987,(2):1-5,53.
【7】B Glemn Bryson,Kalliat T Valsaraj.Solvent Sublation for Waste Minimization in a Process Water Stream-a Pilot Scale Study[J].Journal of Hazardous Materials,2001,82(1):65-75.
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