Surface modification of ilmenite by a novel surfactant dodecyliminodimethylenediphosphoinc acid and its sequent influence on ilmenite floatability

被引：12

作者：

Guan, Changping ^{[1
]}

Yin, Zhigang ^{[1
]}

Zhai, Jihua ^{[1
]}

Hu, Yuehua ^{[1
,2
]}

Chen, Pan ^{[1
,2
]}

Sun, Wei ^{[1
,2
]}

机构：

[1] Cent S Univ, Sch Minerals Proc & Bioengn, Changsha 410083, Hunan, Peoples R China

[2] Cent S Univ, Key Lab Hunan Prov Clean & Efficient Utilizat Str, Changsha, Hunan, Peoples R China

来源：

SEPARATION SCIENCE AND TECHNOLOGY | 2020年 / 55卷 / 02期

基金：

湖南省自然科学基金; 中国国家自然科学基金;

关键词：

Ilmenite; adsorption; surface modification; DDDA; MICROWAVE IRRADIATION; FLOTATION BEHAVIOR; PHOSPHORIC-ACID; SODIUM OLEATE; ADSORPTION; MECHANISM; IONS; CHEMISTRY; COLLECTOR; CALCITE;

D O I：

10.1080/01496395.2019.1577270

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In the study, a novel compound of dodecyliminodimethylenediphosphoinc acid was synthesized, and its adsorption mechanism onto ilmenite surface was investigated by zeta potential, Fourier transform infrared (FTIR) and X-ray photoelectron spectroscop (XPS) measurements. The zeta potential measurement results indicated that dodecyliminodimethylenediphosphoinc acid (DDDA) could adsorb onto ilmenite surface, and the optimum pH range for adsorption was 4-8 (similar to the flotation behavior). The FTIR analyses further confirmed that DDDA chemisorbed onto ilmenite surface and formed metal-DDDA complex, rendering the hydrophobic media for flotation. The XPS results provided strong evidences that DDDA species chemisorbed onto ilmenite surface and reacted with Fe ions rather than Ti ions.

引用

页码：358 / 368

页数：11

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