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Efficient collecting agent for hematite reverse flotation and application of efficient collecting agent

A collector and hematite technology, applied in flotation, solid separation, etc., can solve the problems of failure to reduce the cost of collectors, high cost, and poor comprehensive benefits, and achieve excellent separation effects

Inactive Publication Date: 2014-07-23
UNIV OF SCI & TECH LIAONING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although hematite adopts anion reverse flotation process to obtain better separation index, the cost is high and the comprehensive benefit becomes worse
Chinese patent CN102875793A discloses the synthesis and application of sorbitan oleate polyoxyethylene ether for iron ore flotation. The synthesis of active additives can improve low-temperature reverse flotation performance, but it has not achieved the goal of reducing the cost of collectors. Purpose

Method used

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  • Efficient collecting agent for hematite reverse flotation and application of efficient collecting agent
  • Efficient collecting agent for hematite reverse flotation and application of efficient collecting agent
  • Efficient collecting agent for hematite reverse flotation and application of efficient collecting agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] 200 for the ore, the ore grade is 47.43%, and the mass percentage concentration of the pulp is 35%. Caustic soda is made into a solution with a mass percentage concentration of 2.0%, starch is made into a solution with a mass percentage concentration of 2.5%, and lime is made into an emulsion with a mass percentage concentration of 2.5%. Add caustic soda, starch and lime solution 9.0mL, 6.5mL and 6.0mL respectively to the pulp. Preparation of poly(4-hydroxy-3 methoxyphenyl) glycerol-phenyl ether-sodium sulfonate, unsaturated fatty acid (carbon chain number = 10-22), and bis(4-cyclopentyl) carboxylic acid capture The concentration of the collector is 2.0% by mass, and it is added to the ore pulp. The addition amount of roughing is 3.0mL, and the addition amount of fine selection is 1.0mL. Stir for 3 minutes after adding a chemical agent, control the pH at 11.3-11.7, and carry out a rough-fine open-circuit reverse flotation in the temperature range of 39-41°C. Table 1 s...

Embodiment 2

[0024] 200 for the ore feed, the mass percentage concentration of the pulp is 35%, and the temperature of the pulp is controlled at 39-41°C. Add 9.0 mL of a 2% mass percent sodium hydroxide solution, 6.5 mL of a 2.5% mass percent starch solution, and 6.0 mL of a 2.5% mass percent calcium oxide solution. Adopt fixed unsaturated fatty acid and poly(4-hydroxyl-3 methoxyphenyl) glycerol-phenyl ether-sodium sulfonate to each account for 50% of the collector, the mass percent concentration of the prepared collector is 2.0%, adding Into the ore pulp, the amount of roughing added is 3.0mL, and the amount of beneficiated is 1.0mL. The situation of ore dressing from different sources is investigated, and the specific results are shown in Table 2.

[0025] Table 2 Open-circuit-coarse-finish open-circuit flotation index of reverse flotation for different mines

[0026]

[0027] Unsaturated fatty acid and poly(4-hydroxy-3 methoxyphenyl) glycerin-phenyl ether-sodium sulfonate are used a...

Embodiment 3

[0029] The ore weight and pulp concentration are the same as in Examples 1 and 2, and the ore is the most difficult to select Dong'anshan Concentrator, and the grade is particularly low 44.78% of the ore sample. The concentration and addition of caustic soda, starch, lime are identical with embodiment 1 and 2, and collector consists of: unsaturated fatty acid, poly(4-hydroxyl-3 methoxyphenyl) glycerin-phenyl ether-sodium sulfonate and the mass percent concentration of two (4-cyclopentyl) carboxylic acid are respectively 40%, 55% and 5%, and the collector that the preparation mass percent concentration is 2.0% joins in the ore pulp, and the addition is the same as example 1 and example 2, the flotation effect comparison with the control sample is listed in Table 3.

[0030] Table 3 Comparison of open-circuit flotation results for ultra-difficult mineral processing containing iron carbonate

[0031]

[0032] Note: The comparison sample is the collector being used in the mine...

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Abstract

The invention discloses an efficient collecting agent for hematite reverse flotation and application of the efficient collecting agent to improve mineral separation efficiency and lower cost. The collecting agent comprises polyglycerol (4-hydrixy-3 methoxy-phenyl)-phenyl ether-sodium, unsaturated fatty acid and multi-(4-cyclopentyl) carboxylic acid in chemical constitution. Coarse-fine open-circuit reverse flotation is carried out through the collecting agent under the temperature condition of 39 DEG C to 41 DEG C, the productive rate of fine ore can reach 57.9 percent, the grade is larger than 68 percent, and the yield reaches up to 83.77 percent. The combined agent can generate a synergistic effect, cost is low, the separation effect is good, and for ore samples which contain iron carbonate and are quite low in grade, by using the composite collecting agent, the open-circuit fine ore yield can reach 59.9 percent, and the grade of the fine ore is higher than 67 percent.

Description

technical field [0001] The invention relates to a collector for ore dressing and its application, in particular to a high-efficiency collector for hematite reverse flotation and its application. Background technique [0002] In the field of mineral processing, reducing the cost of flotation reagents, increasing separation efficiency, and improving comprehensive benefits are key issues in iron ore flotation technology, which is of great significance to improving the comprehensive benefits of mineral processing enterprises. [0003] In order to improve the beneficiation efficiency of hematite, it is necessary to develop new flotation reagents. At present, there are relevant reports. For example, Chinese patent CN101618369A discloses a hematite low-temperature flotation reagent and a preparation method, using synthetic 2-hydroxy-5-butylbenzamide sodium and sodium dodecanoate to mix iron . However, with this flotation reagent, the concentrate grade is only 50.8%, and when it r...

Claims

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Application Information

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IPC IPC(8): B03D1/016B03D1/018B03D1/02B03D101/02
Inventor 姜效军郭德水王舰秦光尊
Owner UNIV OF SCI & TECH LIAONING
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