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Application of a 6-amino-1,3,5-triazine-2,4-dithiol compound in metal ore flotation
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A dithiol and compound technology, applied in the field of metal beneficiation, to achieve good flotation selectivity
Active Publication Date: 2020-07-10
CENT SOUTH UNIV
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[0004] At present, there is no report about 6-amino-1,3,5-triazine-2,4-dithiol compounds used as flotation collectors in the prior art
Method used
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Embodiment 1
[0027] Example 1: Flotation performance of 6-(N,N-dibutylamino)-1,3,5-triazine-2,4-dithiol
[0028] In 6-(N,N-dibutylamino)-1,3,5-triazine-2,4-dithiol concentration of 1×10 -5 mol / L, the concentration of foaming agent methyl isobutyl carbinol (MIBC) is 15mg / L, N 2 The gas flow rate is 200ml / min, and the galena, sphalerite, chalcopyrite or pyrite with a particle size of -0.076mm~+0.038mm are floated for 3 minutes each. The flotation results are shown in figure 2 and 3 . figure 2 showed that the recovery of galena and sphalerite from flotation of 6-(N,N-dibutylamino)-1,3,5-triazine-2,4-dithiol at pH8, it can effectively realize the flotation separation of galena and sphalerite. image 3 showed that the recovery of chalcopyrite and pyrite from the flotation of 6-(N,N-dibutylamino)-1,3,5-triazine-2,4-dithiol at pH10, it can effectively realize the flotation separation of chalcopyrite and pyrite.
[0029] Under the same conditions, the flotation results of dixanthate galena a...
Embodiment 2
[0030] Example 2: Flotation performance of 6-butylamino-1,3,5-triazine-2(1H)-thione-4-thiol sodium
[0031] In 6-butylamino-1,3,5-triazine-2(1H)-thione-4-thiol sodium concentration is 1×10 -5 mol / L, the concentration of foaming agent methyl isobutyl carbinol (MIBC) is 15mg / L, N 2 The gas flow rate is 200ml / min, and the galena or sphalerite with a particle size of -0.076mm~+0.038mm is floated for 3 minutes each. The flotation results are shown in Figure 4 . It shows the recovery of galena and sphalerite from the flotation of 6-butylamino-1,3,5-triazine-2(1H)-thione-4-thiol sodium salt at pH<8 High, and pH=8-10, it can effectively realize the flotation separation of galena and sphalerite.
Embodiment 3
[0032] Example 3: Flotation of malachite with 6-(N,N-dibutylamino)-1,3,5-triazine-2,4-dithiol
[0033] In 6-(N,N-dibutylamino)-1,3,5-triazine-2,4-dithiol concentration of 1×10 -4 mol / L, the pH of the pulp is 8.5, the concentration of the foaming agent methyl isobutyl carbinol (MIBC) is 15mg / L, N 2 The gas flow rate is 200ml / min, and the malachite whose particle size is -0.076mm~+0.038mm is floated for 3 minutes, and the flotation recovery rate of malachite is 94.7%.
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Abstract
The invention belongs to the field of mineral flotation and particularly discloses application of a 6-amino-1,3,5-triazine-2,4-dithiol compound to metal mineral flotation. According to the application, the 6-amino-1,3,5-triazine-2,4-dithiol compound is used as a flotation collector to recover valuable metal minerals from copper, lead, nickel, cobalt, zinc and other minerals through flotation. The6-amino-1,3,5-triazine-2,4-dithiol collector can effectively improve flotation enrichment and recovery of the copper, lead, nickel, cobalt, zinc and other minerals and remarkably increase the flotation recovery rate of the valuable metal minerals and has good flotation selectivity.
Description
technical field [0001] The invention relates to the field of metal beneficiation, in particular to a 6-amino-1,3,5-triazine-2,4-dithiol collector and its application in metal ore flotation. Background technique [0002] 6-Amino-1,3,5-triazine-2,4-dithiol compounds contain active atoms of sulfur or nitrogen, and can be used in petroleum, chemical, rubber, materials, agriculture, anti-corrosion and other fields. [0003] Sulfur and nitrogen atoms in 6-amino-1,3,5-triazine-2,4-dithiol compounds have coordination ability, and can be used for metal surface treatment (Mori K., Kang Z., Oishi Y..Effect of 6-dioctylamino-1,3,5-triazine-2,4-dithiol concentration on the polymer plating on iron plates. PolymerJournal, 2005, 37(11): 862-865; Kang Z., Sang J. , Shao M., et al.. Polymer plating on AZ31 magnesium alloy surface and film evaluation of corrosion property. Journal of Materials Processing Technology, 2009, 209(9): 4590-4594; Mori K., Sai S., Miyashita T., et al ..Photopolymer...
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