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A method for flocculation and precipitation of fine-grained chalcopyrite by using a mixed flocculant

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

Active Publication Date: 2019-02-26
JIANGXI UNIV OF SCI & TECH
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  • Description
  • Claims
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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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  • A method for flocculation and precipitation of fine-grained chalcopyrite by using a mixed flocculant
  • A method for flocculation and precipitation of fine-grained chalcopyrite by using a mixed flocculant
  • A method for flocculation and precipitation of fine-grained chalcopyrite by using a mixed flocculant

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Embodiment 1

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

[0027] Table 1 Slurry properties of chalcopyrite concentrate

[0028]

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

[0030] Table 2 Copper concentrate material particle size composition

[0031]

[0032] According to the properties of the pulp, the following groups of comparative test conditions are used, as shown in Table 3:

[0033] Table 3 flocculant ratio (mass percentag...

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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 flocculation and sedimentation of fine-grained chalcopyrite by using a mixed flocculant. Background technique [0002] Jiujiang, Shangrao, Jiangxi, Anqing, Tongling, Anhui and other places are very important deposits in the metallogenic belt in the middle and lower reaches of the Yangtze River in my country. This kind of deposit is a large comprehensive deposit of copper, sulfur and iron. , Iron resources are the main mining objects, and there are many other places of this kind of resources in China, such as Wushan Copper Mine, Chengmenshan Copper Mine, Dexing Copper Mine in Jiangxi; Anqing Copper Mine in Anhui, Jinding Mining in Jingxian County, etc. [0003] Due to the small mass and large specific surface area of ​​fine-grained chalcopyrite, the specific surface energy of the particles is high, and there are oily agents on the mineral surface...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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