Combinatorial method for novel foaming agent with high selectivity and high foaming characteristics
A high-foaming, combined-method technology, used in flotation, solid separation, etc., can solve the problems of very little research on the mechanism of foaming agent interaction, no promotion significance, strong limitations, etc. Degradation, good yield, practical effect
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Embodiment 1
[0044] The mineral samples provided by the JKMRC Mining Laboratory in Brisbane, Australia are used as the original ore. The ore sample is a disseminated skarn copper ore. According to the results of multi-element analysis, the main useful minerals are chalcopyrite, pyrite, bornite and chalcocite; gangues include silicate minerals such as quartz, pyridine, sericite, chlorite, etc. Carbonate minerals such as dolomite and calcite. The ore also contains a small amount of clay minerals, which are easy to muddy. The chalcopyrite embedding particle size is 0.0006-0.05mm. About 20% of chalcopyrite is distributed in gangue minerals or pyrite in the form of 10-20 μm. The ore belongs to refractory ore.
[0045] The experiment uses a flotation column with a height of 3.5 meters and a diameter of 10 centimeters, and the bubble generator is a 5 μm porous metal bubbler. The flotation test is a continuous test, the mixed flotation collector of sulfide ore is ethyl xanthate, and the pH re...
Embodiment 2
[0050] The sample coal provided by Elk Valley Coal (EVC) in BC, Canada was used as the raw coal. The coal quality is fat coal, moderately buoyant, easy to slime, containing 24.67% ash, 68.77% carbon, and 1.17% sulfur. Mineral components in ash include quartz, clay minerals, pyrite and a small amount of carbonate minerals. In terms of particle size, the ash content is mainly concentrated between -0.1mm fine particle size and +1mm coarse size particle size.
[0051] The experiment uses a flotation column with a height of 3.5 meters and a diameter of 10 centimeters, and the bubble generator is a 5 μm porous metal bubbler. The flotation test is a continuous test, and the coal has good floatability and hydrophobicity, and no collector and regulator need to be added. The pH value was maintained at about 7.1 during the test. The inflation rate of the flotation column is 0.5cm / s, the ore feeding rate is 1200mL / min, and the height of the foam layer is set to 5cm. The selected parti...
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