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Preparation method of hybrid collector for oxide ore flotation

A technology of mixing collectors and preparation methods, which is applied in flotation, solid separation, etc., can solve the problems of short aging time, poor low temperature resistance, and difficulty in homogenization, and achieve long aging time, good dispersion effect, and good homogenization effect. Effect

Inactive Publication Date: 2008-05-21
GUIZHOU BRANCH CHINA ALUMINUM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to address the shortcomings of the above-mentioned prior art, and to provide a method that can effectively overcome the difficulty of homogenization, poor low temperature resistance, short timeliness, and negative effects of adding emulsifiers in the use of mixed collectors for oxidized ore flotation. A preparation method of mixed collector for flotation of oxidized ore with disadvantages

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] In order to investigate the effects of the two preparation methods, the two agents were tested with actual ores.

[0036] The low-grade bauxite ore in Gongyi, Henan Province was used as the test sample. The chemical composition of the ore is shown in Table 2.

[0037] Table 2 Chemical composition of low-grade bauxite in Gongyi, Henan

[0038] Gongyi

[0039] Test procedure One roughing, one sweeping, one beneficiation, grinding fineness 88%, pH adjuster 4000g / t, dispersant 40g / t, collectors are agent A and agent B, collector dosage 1000g / t, see Table 3, Table 4, and Table 5 for the open circuit indicators when the flotation system temperature is 23°C, 14°C, and 8°C.

[0040] Table 3 Flotation open circuit index at system temperature of 23°C

[0041] product

[0042] Table 4 Flotation open circuit index at system temperature of 14°C

[0043] product

[0044] (Potion B) Concentrate

[0045] Table 5 Flotation open circuit index...

Embodiment 2

[0049] Taking an iron mine in Shandong as the test sample, the chemical multi-element analysis of the ore is shown in Table 6.

[0050] Table 6 Chemical multi-element analysis of an iron ore in Shandong

[0051] Element

[0052] The test process is one roughing, two beneficiation, the grinding fineness is 80%, the dosage of the regulator is 1000g / t, the dispersant is 100g / t, the collector is agent A and agent B, the dosage is 500g / t, The open circuit index at room temperature is shown in Table 7.

[0053] Table 7 Normal temperature open circuit index of an iron mine

[0054] product name

[0055] It can be seen from Table 7 that under normal temperature conditions, the effect of agent A is better than that of agent B. In the case of 45.88% total iron in the raw ore, the grade of total iron in the concentrate obtained by agent A is 60.74%, and the yield is 57.37%. The recovery rate of total iron was 75.95%; the grade of total iron in the concentrate obta...

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Abstract

The invention relates to a preparation method of oxide ore flotation mixed collectors. The preparation method is characterized in that the preparation process comprises the steps that: (1) saponifier which is weighted in proportion is fully dissolved in hot water; (2) the weighted collecting flotation agent is stirred and mixed homogeneously at the speed of more than 600 revolutions per minute; (3) the prepared original mixture of the collecting flotation agent is added in the hot solvent which is dissolved with the saponifier, and the mixed solvent is stirred for 30 to 120 minutes until the solvent is homogeneous at the temperature of 50 DEG C to 90 DEG C and the speed of 10 to 200 revolutions per minute. The invention has the advantages that: agents are modified by controlling feeding order, preparation temperature, stirring speed and stirring time of agents, thus homogenization effect is good; agents do not agglomerate at comparatively low temperature, and dispersant effect is good; aging of the agents is long.

Description

technical field [0001] The invention relates to a preparation method of a mixed collector for oxidized ore flotation. Background technique [0002] Collector is the key technology of flotation separation of target minerals and gangue minerals. Commonly used oxidized ore collectors include carboxylic acids (oleic acid, oxidized paraffin soap, tall oil, naphthenic acid, alkali residue, etc.), sulfonic acids (sulfonated petroleum), hydroxamic acids, and alkyl sulfuric acids. , alkylbenzenesulfonic acids, these agents are not easy to dissolve in water due to their own properties, and generally need to be saponified when used; sometimes, the index of one agent used alone is poor, and two or more collectors need to be mixed to produce positive results. Synergistic effect, improve the flotation index. In order to accurately administer the drug and improve the effect of the drug, the drug must be mixed evenly. A common method is to use additives to emulsify the drug. [0003] For ...

Claims

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Application Information

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IPC IPC(8): B03D1/018B03D1/004B03D1/002B03D101/02B03D103/04
Inventor 陈兴华陈湘清李旺兴
Owner GUIZHOU BRANCH CHINA ALUMINUM IND
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