"Umbrella" Structure Trisiloxane Surfactant: Synthesis and Application for Reverse Flotation of Phosphorite Ore in Phosphate Fertilizer Production

被引:53
作者
Huang, Zhiqiang [1 ]
Zhang, Shiyong [1 ]
Wang, Hongling [2 ]
Liu, Rukuan [3 ]
Cheng, Chen [1 ]
Liu, Zuwen [1 ]
Guo, Zhiqun [1 ]
Yu, Xinyang [1 ]
He, Guichun [1 ]
Ai, Guanghua [1 ]
Fu, Weng [1 ,4 ]
机构
[1] Jiangxi Univ Sci & Technol, Sch Resource & Environm Engn, Ganzhou 34100, Jiangxi, Peoples R China
[2] Guangdong Inst Resources Comprehens Utilizat, Guangzhou 510650, Peoples R China
[3] Hunan Acad Forestry, Changsha 410004, Hunan, Peoples R China
[4] Univ Queensland, Sch Chem Engn, St Lucia, Qld 4072, Australia
基金
中国国家自然科学基金;
关键词
phosphate fertilizer; reverse flotation; trisiloxane surfactant; phosphorite; quartz; SILICONE SURFACTANTS; GEMINI SURFACTANT; COLLECTOR; APATITE; PERFORMANCE; SEPARATION; ADJUVANTS; QUARTZ; SIZE; PH;
D O I
10.1021/acs.jafc.0c04759
中图分类号
S [农业科学];
学科分类号
09 ;
摘要
Phosphorite is generally used in the manufacture of phosphate fertilizer and plays a vital role in the development of agricultural and food production. Nonetheless, how to obtain phosphorite concentrates efficiently and sustainably has become an urgent problem. In this study, a newly designed trisiloxane surfactant, N-(2-Aminoethyl)-3-aminopropyltrisiloxane (AATS), has been prepared and utilized as an emerging collector for reverse flotation of phosphorite ore. Its collecting ability was compared with the conventional surfactant 1-dodecamine (DDA). In the collector concentration tests, AATS with lower concentrations showed stronger collecting ability for quartz. In the pH tests, AATS always performed better than DDA in the acidic or alkaline condition. In bench-scale flotation experiments, the P2O5 recovery of phosphorite concentrates with 150 g/t AATS was 10.77% higher than that with 300 g/t DDA, which proved that AATS can be applied to the sustainable production of phosphorite concentrates. For a 4000 t/d phosphorite ore processing plant, the profit could be increased 7,014,702.07 USD every year by using AATS as the collector. Therefore, this work provides a promising approach to enhance the production efficiency of phosphate fertilizer and to promote the sustainable development of agriculture.
引用
收藏
页码:11114 / 11120
页数:7
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