Fluorite mineral flotation method

A technology of fluorite ore and slurry, which is applied in the field of flotation separation of fluorite ore, can solve the problems of separating fluorite and other minerals, and achieve the effect of good quality concentrate products, good recovery rate of fluorite, and wide application range

Active Publication Date: 2013-02-13
LONGQUAN FLUOSPAR +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] For complex fluorspar minerals and flotation tailings containing fluorspar, th

Method used

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Examples

Experimental program
Comparison scheme
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Example Embodiment

[0022] Example 1:

[0023] Select Zhejiang Longquan fluorite tailings as the raw ore of the present invention, and the multi-element chemical composition analysis of the mineral samples is shown in Table 1.

[0024] Table 1 Chemical composition of ore (%)

[0025] Composition CaCaF 2 CaO BaO MgOSiO 2 Al 2 O 3 K 2 O Na 2 O Content20.2730.122.380.260.1849.503.471.640.076 Composition TFe FeOFe 2 O 3 MnOSPCF Ig Content1.270.302.380.070.080.0280.1417.695.96

[0026] The specific treatment process of the present invention is: grinding the ore to less than 200 mesh accounted for 60%, the pulp concentration is 30%, adding 1400g / t sodium carbonate to adjust the pulp pH=8.5, adding water glass, the coarse selection amount is 400g / t, stirring for 3 minutes ; Add composite collector (oleic acid: dimethylformamide=4:1.5) 400g / t, stir for 3 minutes, flotation at room temperature (20~35℃) for 6 minutes; foam products are selected after a blank selection , The selected foam products obta...

Example Embodiment

[0027] Example 2:

[0028] The Hengkengping fluorite mine mined in Suichang, Zhejiang is selected as the raw ore of the present invention. The multi-element chemical composition analysis of the raw ore is shown in Table 2. The CaO content in the ore is relatively high, reaching 4.39%, which is a high calcium carbonate fluorite mine. Compare the present invention with the conventional collector oleic acid.

[0029] Table 2 Chemical composition of ore (%)

[0030] Composition CaCaF 2 CaO BaO MgOSiO 2 Al 2 O 3 K 2 O Na 2 O Content22.1737.124.390.160.4744.323.261.280.190 Composition TFe FeOFe 2 O 3 MnOSPCF Ig Content0.850.061.150.160.020.0110.6818.086.80

[0031] The specific treatment process of the present invention is: grinding the ore to less than 200 mesh accounted for 70%, the slurry concentration is 30%, adding 500g / t sodium carbonate to adjust the slurry pH=7.5, adding a combination inhibitor (water glass: sodium fluoride=4: 1) As a regulator, the rough selection amo...

Example Embodiment

[0032] Example 3:

[0033] Choose Zhejiang Wuyi flotation tailings (containing 29.06% CaF 2 , The main useful mineral is fluorite, the gangue mineral is mainly quartz, and there are calcite and a small amount of sericite, iron material, trace sulfide-pyrite), due to the failure of successful flotation process Long-term storage. Grind the ore to less than 200 mesh accounted for 56.06%, the pulp concentration is 30%, add 1000g / t sodium carbonate to adjust the pulp pH=7.5, add the composition (water glass: sodium fluoride=4:1) as the regulator, the amount of coarse selection 1000g / t, stirring for 3 minutes; adding 400g / t of composite collector (oleic acid: dimethylformamide=4:1.5), stirring for 3 minutes, and flotation at room temperature (20~35℃) for 6 minutes; The obtained foam product is re-grinded to less than 400 meshes, accounting for 76.18%; the first selection adds 800 g / t combined inhibitor, the second selection starts with 400 g / t combined inhibitor, and the selected med...

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PUM

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Abstract

The invention discloses a fluorite mineral flotation method. A flotation process of one-segment rough flotation plus scavenging and seven-segment fine flotation is matched with adoption of inhibitors formed by combination of water glass and sodium fluoride, and collecting agents formed by compounding of fatty acid and dimethyl formamide. In the flotation process, fluorites and other minerals in common fluorite minerals, complex fluorite minerals, flotation tailings containing the fluorites, and the like can be effectively separated, and obtained fluorite concentrate products are good in quality and have few impurities. The fluorite mineral flotation method is especially applicable to flotation separation of a large quantity of low-grade fluorite minerals with higher carbonate content, can be used for reducing the content of the impurities in beneficiation products, and has enormous economic benefits and environmental benefits.

Description

technical field [0001] The invention relates to a mineral separation process, in particular to a flotation separation method for fluorite ore. Background technique [0002] Fluorite is a strategic mineral, which plays an important role in the economic development of a country, and is widely distributed all over the world. It has been used as one of the advantageous mineral products for foreign exchange earning in my country for a long time. It has a wide range of uses and can be used In metallurgy, chemical industry, ceramics, cement, glass and other industries. [0003] The general characteristics of my country's fluorite mineral resources are more lean ore, less rich ore, more difficult ore, less easy ore, more symbiotic ore, and less single ore. Over the years, my country's mineral processing equipment has been backward, and the technical level is low. The extraction rate of non-metallic minerals is only 20-40%, which is 10-20% lower than that of the same industry in the ...

Claims

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Application Information

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IPC IPC(8): B03D1/00B03D1/002B03D1/01B03B1/00B03D101/02B03D101/06
Inventor 宋英金火荣周金城胡向明
Owner LONGQUAN FLUOSPAR
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