| 标题 |
 Extensive investigation on extraction and leaching kinetics study of Cu and Cr from spent catalyst using acetic acid 用乙酸萃取废催化剂中Cu和Cr的动力学研究
相关领域
醋酸
浸出（土壤学）
溶解
酒石酸
催化作用
化学
柠檬酸
核化学
甲酸
抗坏血酸
粒径
有机酸
试剂
无机化学
选择性浸出
动力学
色谱法
有机化学
环境科学
食品科学
物理化学
土壤科学
土壤水分
物理
量子力学
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Abstract The application of organic acids towards the extraction of both Cu and Cr from the Cu–Cr spent catalyst was investigated. A series of organic acid such as acetic acid, citric acid, formic acid, ascorbic acid and tartaric acid were adopted, and after screening, acetic acid showed a profound effect on dissolution of either of the metals over other green reagents. The spent catalyst was characterized by XRD and SEM–EDAX to confirm the existence of the oxide phase due to both Cu and Cr metals. For efficient dissolution of metals, the critical parameters such as agitation speed, acetic acid concentration, temperature, particle size, as well as S/L ratio affecting on it was systematically investigated. It was observed that at approximately 99.99% of Cu along with 62% of Cr was extracted at the optimised conditions (agitation speed: 800 rpm, 1.0 M CH3COOH, |
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