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Alumyte flotation compound collecting agent

A composite collector and bauxite technology, applied in the field of composite collectors, can solve problems such as poor adaptability to changes in ore properties, unsatisfactory flotation desiliconization effects, poor collector selectivity, etc., to achieve enhanced selection Excellent collection ability, good low temperature resistance, and the effect of improving mutual solubility

Inactive Publication Date: 2012-12-12
KUNMING METALLURGY INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to address the disadvantages of poor selectivity of collectors, poor adaptability to changes in ore properties, poor low temperature adaptability, and unsatisfactory flotation desiliconization effects in the bauxite positive flotation desiliconization process of medium and low grades. , providing a composite collector for bauxite flotation

Method used

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  • Alumyte flotation compound collecting agent
  • Alumyte flotation compound collecting agent
  • Alumyte flotation compound collecting agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The chemical composition of mineral sample A of a low-grade bauxite in Yunnan is listed in Table 1.

[0024] Table 1 Multi-element chemical analysis of a low-grade bauxite ore sample A in Yunnan

[0025]

[0026] The ore sample is ground first, and the fineness of the ore is -0.074mm, which accounts for 76%. After adding the flotation agent, it enters the first roughing, the second selection, and the first sweeping. Mine and tailings.

[0027] The composite collector is first dissolved with 50% of its mass of sodium hydroxide, and the dosage is 1800-2000 g / ton of raw ore; the adjusting agent is sodium carbonate and water glass, and the dosage is 4000 g / ton of raw ore and 2000 g / ton of raw ore, respectively.

[0028] The results are shown in Table 2.

[0029] Table 2 Flotation closed circuit test results of a low-grade bauxite ore sample A in Yunnan

[0030]

Embodiment 2

[0032] The chemical composition of mineral sample B of a low-grade bauxite in Yunnan is listed in Table 3.

[0033] Table 3 Multi-element chemical analysis of sample B of a low-grade bauxite in Yunnan

[0034]

[0035] The ore sample is ground first, and the ore fineness is -0.074mm accounting for 79%. After adding the flotation reagent, it enters a rough separation, three selections, a sweep, and a positive flotation closed-circuit process of returning to the middle ore sequentially to obtain the concentrate And tailings.

[0036] The composite collector is first dissolved with 30% of the mass of sodium hydroxide, and the dosage is 2800-3000 g / ton raw ore; the adjusting agent is sodium carbonate and water glass, and the dosage is 5500 g / ton raw ore and 2500 g / ton raw ore respectively.

[0037] The results are shown in Table 4.

[0038] Table 4 Flotation closed circuit test results of sample B of a low-grade bauxite ore in Yunnan

[0039]

Embodiment 3

[0041] The chemical composition of a low-grade bauxite ore sample from India is listed in Table 5.

[0042] Table 5 Multi-element chemical analysis of a low-grade bauxite ore sample in India

[0043]

[0044] The ore sample is ground first, and the fineness of the ore is -0.074mm accounting for 78%. After adding the flotation agent, it enters the first roughing, the second selection, and the first sweeping. Mine and tailings.

[0045] The composite collector is first dissolved with 20% sodium hydroxide of its mass, and the dosage is 2500-2800 g / ton raw ore; the adjusting agent is sodium carbonate and water glass, and the dosage is 6000 g / ton raw ore and 2500 g / ton raw ore respectively.

[0046] The results are shown in Table 6.

[0047] Table 6 Flotation test results of a low-grade bauxite ore sample in India

[0048]

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Abstract

The invention discloses an alumyte flotation compound collecting agent which is characterized by being composed of 5-15 wt% of industrial grade monocarboxyl fatty acid, 20-55 wt% of alkyl hydroximic acid and 30-65 wt% of alkyl alcohol. The invention strengthens the selective collecting capability of the collecting agent by introducing in the hydroximic acid and improves the intersolubility of each component in the compound; synergism between components causes the compound collecting agent to easily disperse evenly in ore pulp, simultaneously improve collecting effect and bring good resistanceto low temperature. The compound collecting agent can directly and effectively float alumyte without desorbing fine silt.

Description

Technical field [0001] The invention relates to a composite collector selected for bauxite floatation. technical background [0002] Bauxite is an industrial raw material for alumina production. The alumina industry requires the aluminum to silicon ratio (A / S) of bauxite to be as high as possible; especially Bayer, which has the characteristics of high efficiency, low energy consumption, simple processes, and low production costs. The method process requires that the aluminum to silicon ratio of the bauxite raw material is greater than 8. Major foreign bauxite producers generally adopt simple ore washing and desliming to produce qualified Bayer process raw materials. However, most of my country's bauxite resources are medium and low-grade diaspore bauxite, with an aluminum-silicon ratio of about 4, and it is impossible to produce qualified Bayer process raw materials through simple ore washing and desliming processes. This kind of bauxite resources can remove silicon-containing...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03D1/01B03D101/02B03D103/04
Inventor 李晓阳白荣林朱从杰简胜张旭东王旭明张汉平杨玉珠王祖旭张晶吴迪王少东梁溢强杨林付丹
Owner KUNMING METALLURGY INST