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Flocculent precipitation method for microgranular chalcopyrite by using mixed flocculant

A technology of flocculant and chalcopyrite, which is applied in the field of flocculation and precipitation of fine-grained chalcopyrite, which can solve the problems of ceramic panel clogging and increase of filtration costs, and achieve the effects of reducing muddy running, good economic benefits, and effective settlement

Active Publication Date: 2017-08-18
JIANGXI UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For example, problems such as clogging of ceramic panels increase filtration costs

Method used

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  • Flocculent precipitation method for microgranular chalcopyrite by using mixed flocculant
  • Flocculent precipitation method for microgranular chalcopyrite by using mixed flocculant
  • Flocculent precipitation method for microgranular chalcopyrite by using mixed flocculant

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Embodiment 1

[0026] The slurry properties were analyzed on the sulfur concentrate flotation of a copper-sulfur concentrator in the Yangtze River Basin, the pH of the slurry was tested, and the slurry was wet screened (the sieve was 200 mesh), dried, and weighed. The measured properties of the pulp are as follows:

[0027] Table 1 Properties of Chalcopyrite Concentrate Pulp

[0028]

[0029] After filtering and drying the product under the wet sieve, the sample is mixed and shrunk. The mineral sample is analyzed with a laser particle size analyzer to analyze the particle size distribution composition of the material. The measured particle size distribution of the copper concentrate slurry is as follows:

[0030] Table 2 Particle size composition of copper concentrate

[0031]

[0032] According to the properties of the slurry, the following sets of comparative test conditions are shown in Table 3:

[0033] Table 3 Flocculant ratio (mass percentage)

[0034]

[0035] The precipitation test results are...

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Abstract

The invention provides a flocculent precipitation method for microgranular chalcopyrite by using a mixed flocculant, belonging to the technical field of flocculent precipitation. The method comprises the steps: firstly, preparing the mixed flocculant, wherein the mixed flocculant is formed by mixing anionic polyacrylamide, carboxymethyl cellulose and polyaluminium sulfate; after flotation, adding the microgranular chalcopyrite into the mixed flocculant and lime milk; after flocculent precipitation, further dewatering the microgranular chalcopyrite. The dosage of the mixed flocculant is 2-8g / t relative to the weight of ore pulp. The method increases the precipitation speed of chalcopyrite, reduces lime dosage, increases the underflow concentration of a thickener, can solve the problem of solid persisting in chalcopyrite, and increases the economic benefit. The method has the advantages of simple preparation, low operation cost and obvious effect.

Description

Technical field [0001] The invention relates to the technical field of flocculation and sedimentation, in particular to a method for applying a mixed flocculant to flocculate and sediment fine chalcopyrite. Background technique [0002] Jiangxi Jiujiang, Shangrao, Anqing, Anqing, Tongling, Anhui, and other places are a very important deposit in the middle and lower reaches of the Yangtze River in my country. This type of deposit is a large-scale comprehensive deposit of copper, sulfur and iron. , Iron resources are the main mining target. There are many other places in the country for such resources. Typical examples are the Wushan Copper Mine, Chengmenshan Copper Mine, and Dexing Copper Mine in Jiangxi; Anqing Copper Mine in Anhui and Jinding Mining in Jing County. [0003] Due to the small mass and large specific surface area of ​​fine-grained chalcopyrite, the particles have high specific surface energy, and the mineral surface has oily agents, so it is very easy to form a floati...

Claims

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Application Information

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IPC IPC(8): B03D3/06
CPCB03D3/06
Inventor 邱廷省陈江安余文邓建红唐琼瑶
Owner JIANGXI UNIV OF SCI & TECH
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