Combined collector of phosphorite

A technology combining collector and apatite, applied in the field of collectors, can solve the problems of difficult defoaming, high foam viscosity and high cost, and achieve the effect of reducing flotation cost, reducing consumption and moderate price

Inactive Publication Date: 2009-12-16
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the commonly used apatite collectors are fatty acids such as oxidized paraffin wax soap and oleic acid, and are often used alone or in combination with relatively expensive sodium dodecylsulfonate. High, the dissolution effect in the pulp is not good, which affects the collection effect
In addition, the consumption of soda ash is about 5-8kg / t, the foam viscosity is high, it is not easy to defoam, and the concentrate is difficult to settle. If you choose kerosene and other combinations, the foam effect will be improved, but the oil in the tailings is very difficult to deal with. serious environmental pollution

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] After processing the apatite-containing tailings of an iron ore in Longling by magnetic separation, the ore sample is a sandy soil sample, and its components are mostly muddy particles. Phosphorus minerals are mainly apatite, and gangue minerals mainly include Fushan stone, calcite, quartz, muscovite, biotite, epidote, etc. Among them, calcite is the majority, and other minerals are rare. See cuttings and metal minerals. There are roughly three types of cuttings: one is composed of clay minerals, argillaceous matter, sericite and biotite, of which biotite is relatively less; The cuttings are limestone cuttings (less common). Metal minerals include limonite and a small amount of magnetite. Magnetite is sometimes semi-euhedral and sometimes other-shaped granular. Limonite is irregular granular. The phosphorus grade of the tailings is low, about 18.56%. Some apatites are difficult to separate, and the mudification is serious. When the grinding fineness is 200 mesh, acco...

Embodiment 2

[0015] The ore sample comes from a certain place in Anning, Yunnan. From the spectral analysis table 2 and the diffraction pattern of the raw ore, it can be seen that the useful phosphorus mineral is fluorapatite, with a small content. The gangue contains a large amount of quartz, chlorite, muscovite and orthoclase. The slime content is large. The raw ore properties are shown in Table 3.

[0016] Table 2 Spectral analysis of ore samples

[0017] the element

Content%

the element

Content%

Aluminum (Al)

Phosphorus (P)

Manganese (Mn)

Magnesium (Mg)

Lead (Pb)

Iron (Fe)

3.00

10.00

0.3

greater than 1.00

0.01

greater than 1.00

titanium

calcium

copper

sodium

other elements

0.1

Greater than 10.0

0.03

0.3

none

[0018] Table 3 Multi-element analysis results

[0019] project

P 2 o 5

TiO 2

Al 2 o...

Embodiment 3

[0025] The sample comes from a phosphate mine in Shandong, and the multi-element analysis result of the raw ore sample is: P 2 o 5 24.2%, MgO 5.04%, SiO 2 12.34%, Fe 2 o 3 7.89%, Al 2 o 3 1.05%, CaO4 0.64%, CO 2 9.87%. Belongs to siliceous calcium sedimentary phosphorite.

[0026] The grinding fineness used in the test is 200 mesh 90%, and the process adopts two closed-circuit grinding, one rough, three fine and one scavenging flotation process. The original drug system is the regulator sodium carbonate 6kg / t, the inhibitor MC (self-made) 1.5kg / t, the combined use of oleic acid and sodium dodecylsulfonate is 3.5kg / t, and the concentrate index is grade P 2 o 5 32.7%, recovery rate is 74.6%; After adopting this combined collector 2.5kg / t, proportioning is: oxidized paraffin wax soap: table salt: sodium oleate=2.4: 0.11: 0.9, be adjusted to sodium carbonate consumption 4kg / t, The index of flotation concentrate is grade P 2 o 5 31.97%, and the recovery rate was ...

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Abstract

The invention discloses a combined collector of phosphorite. The invention relates to a floatation agent suitable for phosphate mineral with large mud content and belongs to the technical field of mineral machining engineering. The combined collector adopts another two agents which are combined and used in a conventional oxidized paraffin soap collector; the mixture ratio of the combined collector comprises that: the ratio of oxidized paraffin soap to salt to sodium oleate is 2:0.1:1; and three agents synergize to have more obvious and better effect than independently using the oxidized paraffin soap and the sodium oleate. The combined collector is used, can substantially reduce the consumption of sodium carbonate, and is favorable for sedimentation of concentrated ore; and the combined collector has wide source of raw materials, moderate price and market popularization value.

Description

Technical field [0001] The utility model relates to a collector for flotation phosphorus minerals, in particular to a combined collector for flotation of apatite with a lot of mud. Background technique [0002] At present, the commonly used apatite collectors are fatty acids such as oxidized paraffin wax soap and oleic acid, and are often used alone or in combination with relatively expensive sodium dodecylsulfonate. High, the dissolution effect in the pulp is not good, which affects the collection effect. In addition, the consumption of soda ash is about 5-8kg / t, the foam viscosity is high, it is not easy to defoam, and the concentrate is difficult to settle. If you choose kerosene and other combinations, the foam effect will be improved, but the oil in the tailings is very difficult to deal with. Environmental pollution is serious. Contents of the invention [0003] The purpose of the present invention is to provide a combined collector of apatite. Compared with conven...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/001
Inventor 唐敏
Owner KUNMING UNIV OF SCI & TECH
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