Adsorption mechanism of cupferron on rutile surface and its effect on flotation behavior

被引：1

作者：

Xiao W. ^{[1
,2
]}

Yu J. ^{[1
]}

Chen Y. ^{[3
]}

Wan X. ^{[1
]}

Liu J. ^{[2
]}

Li H. ^{[2
]}

Zhang H. ^{[1
]}

Yang J. ^{[1
]}

Gao B. ^{[1
]}

机构：

[1] School of Resources Engineering, Xi'an University of Architecture and Technology, Xi'an

[2] Baogang Group Mining Research Institute Co. Ltd., Baotou

[3] Shanyang Qinding Mining Co. Ltd., Shangluo

来源：

Zhongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Central South University (Science and Technology) | 2023年 / 54卷 / 11期

基金：

中国国家自然科学基金;

关键词：

cupferron; five-membered ring complex; new environmental protection pharmaceutical; rutile flotation;

D O I：

10.11817/j.issn.1672-7207.2023.11.001

中图分类号：

学科分类号：

摘要：

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. © 2023 Central South University of Technology. All rights reserved.

引用

页码：4219 / 4227

页数：8

共 40 条

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