Synergism of octane phenol polyoxyethylene-10 and oleic acid in apatite flotation
Renju Cheng 1, 2  
Chengxiu Li 3,  
Xing Liu 3,  
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Institute of Multipurpose Utilization of Mineral Resources, CAGS
Research Center of Multipurpose Utilization of Metal Mineral Resources of China Geological Survey
Institute of Multipurpose Utilization of Mineral Resources, CAGS Research Center of Multipurpose Utilization of Metal Mineral Resources of China Geological Survey
Publish date: 2017-05-23
Physicochem. Probl. Miner. Process. 2017;53(2):1214–1227
The addition of octane phenol polyoxyethylene-10 (OP-10) to oleic acid via a reagent-combination technology was carried out and it was shown that OP-10 exhibited synergistic effects in the flotation performance of oleic acid. Single-mineral flotation tests, zeta-potential measurements, total-organic-carbon determination, and scale-up of continuous tests using raw ore were also carried out. Single-mineral flotation tests showed that OP-10 exhibited virtually no collecting performance for apatite, but it improved the flotation performance of oleic acid following its addition to oleic acid in small amounts at low temperature. Zeta-potential measurements and total-organic-carbon determination results indicated that the addition of 2.5% OP-10 to oleic acid increased the absolute value of the apatite surface potential and improved adsorption of oleic acid on the apatite surface at low temperature. A scale-up of the continuous test showed that application of OP-10 with industrial fatty acids led to good synergistic effects and contributed to effective separation of phosphate ore.
Renju Cheng   
Institute of Multipurpose Utilization of Mineral Resources, CAGS, The three section, 5 South of the two loop, Chengdu, Sichuan, China., 610041 Chengdu, China
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