Combined ore pulp pH (power of hydrogen) regulator for phosphorite flotation technology
A technology of adjusting agent and process mine, which is applied in flotation, solid separation, etc., and can solve the problems that sodium carbonate has a small buffer range for the pH value of ore pulp, affects the collection capacity and selectivity of collectors, and the flotation process is not smooth, etc. , achieve good bubble mineralization effect, smooth flotation process, improve collection capacity and selectivity
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Embodiment 1
[0022] The raw ore selected in this embodiment is Fangmashan phosphate rock in Hubei. The main useful minerals of the ore are collophoste, followed by fine-crystalline apatite. The gangue minerals are dolomite, chalcedony, quartz and a small amount of calcite, limonite, Pyrite, clay, etc. P in raw ore sample 2 o 5 The raw ore is crushed to -12mm by a crusher, and then ground by a grinder with a grinding fineness of -0.074mm93.38%, and then mixed with water to obtain a slurry with a concentration of 20-50wt%.
[0023] The above-mentioned ore pulp is subjected to a positive flotation roughing process, using water glass (sodium silicate) and sodium carboxymethyl starch (CM-1) as inhibitors, and fatty acid collector (TSM-46) as collector. The dosage of water glass is 3.0kg / t (raw ore), the dosage of carboxymethyl starch (CM-1) is 0.6kg / t (raw ore), and the dosage of collector TSM-46 is 0.6kg / t (raw ore) , the flotation process adds a mixture of sodium carbonate and sodium hydro...
Embodiment 2
[0032] The raw ore used in this example is Yunnan Huaning Phosphate Mine. Yunnan Huaning Phosphate Mine belongs to siliceous phosphorite, and the deposit type and rock combination are basically similar. The natural types of ores are mainly sandy phosphorites, phosphorous dolomite, banded and layered phosphorites, and the industrial types of ores are siliceous and silicate. The ore minerals are mainly collophosite, and the gangue minerals are mainly micrite dolomite, argillaceous dolomite, quartz, muscovite, sericite, calcite, chlorite, silica, etc. Collephantite: brown, sandy shape, round, nearly round, near round residual, particle size 0.05-0.10mm, evenly, semi-uniformly or semi-directionally densely distributed. Dolomite: mainly micrite dolomite and argillaceous dolomite, colorless, euhedral-semi-euhedral granular, particle size 0.01-0.05mm, content 15%. Quartz: colorless, angular-sub-angular-round distribution, mostly with a particle size of 0.05mm±, the content is genera...
Embodiment 3
[0040] The raw ore selected in this embodiment is a phosphate mineral in a phosphate rock in Sichuan. The vast majority of the minerals are collophanite and a small amount of micro-fine crystal apatite. Collephosite is mainly in the shape of aggregates and ovals, a small amount is irregular in shape, most of them are yellowish brown, and some are dark brown. The yellowish brown ones are mainly wrapped by limonite or carbonaceous film, and the dark brown ones are not covered by the above-mentioned film. , and often one or several micro-fine crystals (several to 20 μm) of pyrite are wrapped in it. Micro-fine-crystalline apatite particles can sometimes be seen around collophanite particles, sometimes 1-2 carbonate mineral micro-fine-crystalline inclusions can be seen in collophanite particles, and multiple inclusions can be seen in individual cases. Collophosite particles vary in size, mainly carbonate minerals with a particle size of 50-100 μm (the detailed classification of car...
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