中南大学学报（自然科学版）2023，Vol.54Issue(11)：4219-4227,9.DOI:10.11817/j.issn.1672-7207.2023.11.001
亚硝基苯胲铵在金红石表面的吸附机制及其对浮选行为的影响
Adsorption mechanism of cupferron on rutile surface and its effect on flotation behavior
摘要
Abstract
The adsorption behavior of cupferron on rutile surface was studied from the perspectives of dosage,Zeta potential,contact angle test,infrared spectrum test and theoretical calculation of group electronegativity by comprehensive consideration of mineral surface solution chemistry.The results show that the recovery rate of rutile reaches 81.5%when pH=6.8 and the cupferron dosage is fixed.The fracture of Ti—O bond on the surface of rutile particles will lead to hydration of the active particles on the surface in aqueous solution,thus form hydroxyl compounds.The adsorption behavior is mainly the result of interaction with Ti(OH)+3.The nitrobenzene hydroxylamine can significantly enhance the hydrophobic properties of rutile surface,and at 400 mg/L,the maximum contact angle,namely the strongest hydrophobicity,is obtained.The cupferron is bonded with rutile surface active particles and forms complexes containing benzene rings with—N—O,—N=O functional groups.The possibility of bonding between mineral and reagent O and O is the most likely,and the most stable,and the five-membered ring complex containing benzene ring is formed,so that the hydrophobic rutile floats up.关键词
亚硝基苯胲胺/金红石浮选/五元环络合物/新型环保药剂Key words
cupferron/rutile flotation/five-membered ring complex/new environmental protection pharmaceutical分类
矿业与冶金引用本文复制引用
肖巍,余俊甫,陈阳,万昕洋,刘剑飞,李宏静,张鹤,杨娟,高碧荷..亚硝基苯胲铵在金红石表面的吸附机制及其对浮选行为的影响[J].中南大学学报（自然科学版）,2023,54(11):4219-4227,9.基金项目
国家自然科学基金资助项目(52004197) （52004197）
陕西省创新能力支撑计划项目(2023-CX-TD-50)(Project(52004197)supported by the National Natural Science Foundation of China （2023-CX-TD-50）
Project(2023-CX-TD-50)supported by the Innovation Capability Support Program of Shaanxi Province) （2023-CX-TD-50）
