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A synergist for refractory copper oxide ore flotation

A synergist, copper oxide technology, applied in flotation, solid separation, etc., can solve the problem of few research reports on flotation synergists, achieve obvious technical and economic advantages and environmental benefits, good adaptability, and good stability Effect

Active Publication Date: 2020-06-05
云南迪庆有色金属有限责任公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the research on new flotation reagents for refractory copper oxide ores is mainly focused on collectors, and the application of flotation synergists is also mainly concentrated on minerals such as fluorite, apatite and bauxite. Few research reports on copper ore flotation synergists

Method used

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  • A synergist for refractory copper oxide ore flotation
  • A synergist for refractory copper oxide ore flotation
  • A synergist for refractory copper oxide ore flotation

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preparation example Construction

[0020] The preparation method of this synergist, concrete steps are as follows:

[0021] First, powdery 8-hydroxyquinoline and ammonium sulfate are mixed to obtain a powdery mixed solid;

[0022] Then mix liquid dioctyl phosphate, kerosene and ethanol to obtain a liquid drug solution;

[0023] Then, adding the powdery mixed solid into the mixed liquid drug solution, adding water to prepare a solution with a volume fraction of 30%-35%;

[0024] Finally, place the prepared flotation reagent mixture solution in a 1kW microwave field for radiative heating, keep the temperature at 40°C to 50°C, heat, stir and mix evenly at a speed of not less than 800 rpm, The heat preservation and stirring time is 15-20 minutes.

[0025] The stock solution of the flotation synergist prepared according to the above requirements is directly added to the grinding operation, so that the flotation synergist and minerals can fully contact and play a role in the ball mill.

Embodiment 1

[0027] Yunnan Pulang Copper is a typical porphyry-type copper-molybdenum ore. The main valuable recoverable elements in the ore are copper and molybdenum, with grades of 0.52% and 0.012%, respectively. The results of chemical multi-element analysis are shown in Table 1. The by-product stockpile sample is the main ore supply for the initial operation of the dressing plant, and has a high oxidation rate. The content of the main valuable recovered elements was determined, and the results are shown in Table 2.

[0028] Table 1 Chemical multi-element analysis results of raw ore

[0029]

[0030] Table 2 Analysis results of chemical elements in by-product stockyard samples

[0031]

[0032] The main valuable recoverable elements of this ore are copper and molybdenum, with grades of 0.52% and 0.012% respectively; gold and silver are the main associated precious metal elements, with contents of 0.16g / t and 2.3g / t respectively. The useful minerals in the ore are chalcopyrite and...

Embodiment 2

[0039] Copper resources are abundant in Tibet, but most copper deposits are oxidized to varying degrees. The original ore of a copper oxide mine in Tibet contains 2.50% copper, high CaO content, Fe 2 o 3 The content is 29.908%. The ore belongs to refractory copper oxide ore. The chemical multi-element analysis results are shown in Table 4.

[0040] Table 4 Raw ore chemical multi-element analysis results / %

[0041]

[0042] From the multi-element analysis results of the raw ore, it can be seen that the valuable recoverable element in the ore is mainly copper, and the contents of other beneficial associated components and harmful elements are relatively low. The results of copper phase analysis show that the oxidation rate of copper in the ore is as high as 90.32%, and the ore is copper oxide ore. The main metal minerals in the ore are malachite, chrysocolla, copperite, chalcopyrite, chalcocite, magnetite, hematite, limonite, pyrite, etc. The gangue minerals are mainly cal...

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Abstract

The invention provides a synergist for refractory copper oxide ore flotation and a preparation method thereof, and belongs to the technical field of flotation. The synergist comprises, by weight, 60 parts of 8-hydroxyquinoline, 45 parts of dioctyl phosphate, 15 parts of ammonium sulfate, 5 parts of kerosene and 5 parts of ethanol. The preparation method comprises the steps of firstly mixing the powdery 8-hydroxyquinoline and ammonium sulfate, then mixing the liquid dioctyl phosphate, kerosene and ethanol, adding the powdery solids into the mixed liquid medicament solution, next adding water soas to prepare the water solution with the volume fraction of 30%-35%, heating to 40-50 DEG C in a microwave field, and stirring for 15-20 min. The prepared synergist can be directly added into the ore grinding operation in the form of a stock solution. The synergist for the refractory copper oxide ore flotation is stable in property, good in solubility, high in activity, less in dosage of the medicament, high in adaptability to ores and capable of effectively improving indexes of the refractory copper oxide ore flotation, and has obvious technical and economic indexes and environmental benefits.

Description

technical field [0001] The invention relates to the technical field of flotation, in particular to a synergist for refractory copper oxide ore flotation. Background technique [0002] With the rapid development of my country's economy, the demand for copper is increasing, which will make the contradiction between supply and demand of copper resources in my country more and more prominent. As far as the world's copper resources are concerned, there are about 10% to 15% of the oxide ore in each copper mining area. my country is rich in copper resources, among which oxide ore reserves account for about 1 / 4. In addition to the presence of oxidation zones in most deposits, there are also large copper oxide deposits. Most of these copper oxide ores have the characteristics of high oxidation rate, large mud content, uneven distribution of fine particles, mixed oxygen and sulfur, and mixed thickness. In addition, some copper oxide ores contain very low copper, which determines the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03D1/018B03D101/00B03D103/04
CPCB03D1/018B03D2201/00B03D2203/04
Inventor 刘华武孙春宝朱月锋寇珏张晓亮李莹高双龙黄文昊
Owner 云南迪庆有色金属有限责任公司
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