Composition and flotation method for flotation collecting of rutile from ores
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A composition and flotation technology, applied in flotation, solid separation, etc., can solve the problems of expensive collectors, poor water solubility, and environmental hazards, and achieve the effects of no toxic side effects, little environmental pollution, and low cost
Active Publication Date: 2018-02-16
CENT SOUTH UNIV
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[0006] Aiming at the collectors used in the prior art are expensive, highly toxic, harmful to the environment and poor in water solubility, the purpose of the present invention is to provide a new rutile flotation collector and its flotation collection method
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Embodiment 1
[0026] 1. Mineral raw materials
[0027] Flotation of pure rutile minerals (rutile:quartz = 1:1) is carried out. The single minerals are obtained by crushing, ceramic ball milling and sieving of high-purity minerals. The particle size is -200+400 mesh.
[0028] 2. Experimental protocol
[0029] The artificial mixed ore flotation experiment was carried out on the XFG hanging trough flotation machine. The 2.0g raw ore sample weighed is a mixture of rutile and quartz in a ratio of 1:1. Put it into a 40mL flotation tank, add 35mL distilled water, and adjust the slurry for 2 minutes. Add a pH adjuster to adjust the pH of the slurry. Join 1×10 -4 mol / L Pb(NO 3 ) 2 As an activator, add the collector 3,4-dihydroxytoluene 4×10 of the present invention -5 mol / L and foaming agent No. 2 oil, each agent is added and stirred for 3 minutes before adding the next agent. After 3 minutes of flotation, the collector can be obtained in the range of pH=6-9.5, the recovery rate of rutile in the concentr...
Embodiment 2
[0033] 1. Mineral raw materials
[0034] Take argillaceous schist rutile ore from a certain area in Henan, TiO after grinding and desliming 2 The grade is about 2.69% as the actual flotation feed of rutile ore, and its main gangue minerals are amphibole and garnet.
[0035] 2. Total dosage of flotation reagent:
[0036] pH adjuster: 1500g / t of sodium carbonate
[0037] Activator: rough selection of lead nitrate 500g / t, sweep selection 200g / t+100g / t
[0038] Inhibitor: rough selection of sodium fluorosilicate 600g / t, selection 80g / t
[0039] Collector: 3,4-Dihydroxytoluene for rough selection 500g / t, selection 60g / t, sweep selection 100g / t
[0040] Foaming agent: No. 2 oil coarse selection 40g / t sweep selection 20g / t
[0041] The operating steps and technical conditions are as follows:
[0042] During the flotation process, the ore is added to the mill to grind the ore until the mineral monomers dissociate, the fineness of the ore is controlled -74μm not to exceed 82%, the pH value of the sl...
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Abstract
The invention provides a composition for flotation collecting of rutile from ores. The composition for flotation collecting of the rutile from the ores comprises an activating agent used for activating the rutile, and / or an inhibitor used for inhibiting gangue, and a collecting agent, namely 3,4-dihydroxytoluene. The invention further provides a flotation method for flotation collecting of the rutile from the ores. The flotation method comprises the step that the 3,4-dihydroxytoluene is used as the collecting agent. According to the composition and the flotation method for flotation collectingof the rutile from the ores, oxygen atoms of every two adjacent pieces of hydroxyl on a benzene ring are bonded with the rutile, so that the collecting agent has high collecting performance; comparedwith an arsenic acid collecting agent and a phosphonic acid collecting agent, the collecting agent is low in price, free of toxic and side effects and little in environmental pollution; compared witha hydroximic acid collecting agent, the collecting agent has the advantages that the cost is low, water solubility is good, and pipeline blocking is avoided; and meanwhile, the collecting agent is short in flotation time and small in using amount, and thus separation of the rutile and a gangue mineral can be well achieved under the neutral condition and under the weak-base condition.
Description
Technical field [0001] The invention belongs to the technical field of beneficiation, and specifically relates to a highly selective flotation collector for rutile flotation. Background technique [0002] Judging from the production status of major titanium minerals in the world, most of the foreign rutile resources are seaside placers, with coarse particle size and high dissociation degree, and generally do not require grinding and flotation operations. Therefore, gravity separation, electric separation and magnetic separation are widely used abroad. Combined process. The reserves of rutile in China are relatively insufficient. The rock-mineral resources are relatively large and the placer-type resources are relatively small. In particular, the coarse-grained rutile resources with a higher recovery rate of beneficiation are more scarce, and the rutile inlays of domestic rutile mines are fine, and The gangue symbiosis relationship is close, the re-election and discarding are dif...
Claims
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