Efficient desliming method for low-grade argillaceous zinc oxide ores

A zinc oxide ore, low-grade technology, applied in solid separation, flotation, etc., can solve the problems of low desliming efficiency and poor selectivity, and achieve high desliming efficiency, less zinc metal loss, and efficient mineralization

Inactive Publication Date: 2016-09-14
CHINA UNIV OF MINING & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a high-efficiency desliming method for low-grade argillaceous zinc oxide ore, and solve the problems of poor selectivity and low desliming efficiency when the existing method is used for desliming low-grade argillaceous zinc oxide ore

Method used

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  • Efficient desliming method for low-grade argillaceous zinc oxide ores
  • Efficient desliming method for low-grade argillaceous zinc oxide ores
  • Efficient desliming method for low-grade argillaceous zinc oxide ores

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Experimental program
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Effect test

Embodiment 1

[0026] Embodiment 1: the ore pulp solid mass concentration of raw ore is 30%,-0.074mm content 83%; Ultrasonic generation probe is inserted into ore pulp, carries out ultrasonic pretreatment, and ultrasonic frequency is 20kHz, and power is 60W; Add in the ore pulp after ultrasonic treatment 1200g / t sodium carbonate, stir for 5min, then add 20g / t terpineol oil, stir for 5min, the stirring speed is 1000r / min; send the evenly mixed pulp into the cyclone-static micro-bubble flotation column for flotation desliming , the foam in the flotation column is the detached slime, and the bottom flow of the flotation column is used for subsequent zinc oxide ore separation operations; the slime and bottom flow are filtered, dried and tested respectively.

[0027] Table 1 Desliming test results

[0028]

[0029] As can be seen from Table 1, under the close situation of loss of zinc metal recovery rate, the desliming rate of the new method of the present invention is 4.07% higher than the or...

Embodiment 2

[0030] Embodiment 2: The ore pulp solid mass concentration of raw ore is 33%,-0.074mm content 85%; Ultrasonic generation probe is inserted into ore pulp, carries out ultrasonic pretreatment, and ultrasonic frequency is 30kHz, and power is 120W; Add in the ore pulp after ultrasonic treatment 1400g / t sodium carbonate, stir for 5min, then add 30g / t terpineol oil, stir for 5min, the stirring speed is 1000r / min; send the evenly mixed pulp into the cyclone-static micro-bubble flotation column for flotation desliming , the foam in the flotation column is the detached slime, and the underflow of the flotation column is used for subsequent zinc oxide ore separation operations; the foam and underflow are filtered, dried and tested respectively, and the final results are shown in Table 2.

[0031] Table 2 Desliming test results

[0032]

[0033] As can be seen from Table 2, under the similar situation of desliming rate, the zinc grade of the deslimed by the new method of the present i...

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Abstract

The invention discloses an efficient desliming method for low-grade argillaceous zinc oxide ores, and belongs to efficient desliming methods for mineral products. The method comprises the following steps: pre-treating ore pulp by virtue of an ultrasonic wave at first, then adding a dispersant sodium carbonate and a foamer terpenic oil respectively, carrying out high-shearing and pulp mixing, and carrying out flotation desliming by virtue of a flotation column after uniformly mixing, wherein the frequency of the ultrasonic wave is 20-40kHz, and the power is 50-300W; the amount of the dispersant sodium carbonate is 1000-1500g / t; the amount of the foamer terpenic oil is 10-30g / t; the stirring rotational speed of the high-shearing and pulp mixing is 900-1500r / min; and the flotation column is a rotational flow-static micro-bubble flotation column. The method has the following advantages: the flow is simple, the selectivity and desliming efficiency are high, and the loss of valuable minerals is less during desliming, thus efficient desliming before flotation for the low-grade argillaceous zinc oxide ores is realized; and the loss of zinc metal is less during desliming through effective combination of the ultrasonic wave pre-treatment, the high-shearing and pulp mixing, and the flotation column.

Description

technical field [0001] The invention relates to a high-efficiency desliming method of mineral products, in particular to a high-efficiency desliming method of low-grade argillaceous zinc oxide ore. Background technique [0002] Zinc is an important strategic mineral resource in my country, accounting for more than 30% of the total production and consumption of ten commonly used nonferrous metals. With the increase of social demand and the continuous expansion of production scale, the easy-to-select zinc sulfide ore resources have been exhausted day by day. As an important mineral resource of zinc, zinc oxide ore is of great strategic significance to strengthen its efficient separation and utilization for the sustainable development of zinc ore resources in my country. [0003] Usually, zinc oxide ore is subject to alteration, weathering, etc., and contains a large amount of clay slime, which seriously affects the flotation process, resulting in low recovery rate and high re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/02
CPCB03D1/025
Inventor 廖寅飞马子龙曹亦俊靳晨曦何棒
Owner CHINA UNIV OF MINING & TECH
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