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Beneficiation method for collophanite

A beneficiation method and a technology for colloidal phosphate rock, which are used in flotation, solid separation, energy and wastewater treatment, etc., and can solve the problem that it is difficult to meet the index requirements of high-quality phosphorus concentrates, cannot effectively reduce the content of sesquioxide, and is difficult to achieve high-quality phosphate concentrates. Chemical utilization and other issues to achieve the effect of improving quality

Active Publication Date: 2021-01-26
PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the desiliconization and demagnesium beneficiation process of phosphate rock, the sesquioxide will decrease to a certain extent, but it is difficult to meet the index requirements of high-quality phosphate concentrate, especially for the carbonaceous slate with heavy iron slime content that exists in large quantities in southern my country type collophosphate, it is difficult to achieve high-quality utilization, and it is impossible to effectively reduce the content of sesquioxides and increase the P 2 o 5 grade

Method used

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  • Beneficiation method for collophanite

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0086] Preparation of medicament A: Mix butylammonium black, ether alcohol and kerosene in a mass ratio of 2:1:1, add water, and stir at 3000 r / min for 30 minutes to obtain an aqueous solution with a mass concentration of 2%, namely medicament A.

[0087] Preparation of sulfuric acid solution: mix H 2 SO 4 Mix with water at 2:8, stir evenly to get H 2 SO 4 A sulfuric acid solution with a mass concentration of 20%.

[0088] Preparation of agent B: mix oxidized paraffin soap with H 2 SO 4 , prepared into a solution with a mass concentration of 20%, heated to 100°C, stirred at a high speed of 3000r / min for 30min, concentrated and evaporated to dryness to obtain a paste. Water is added to the obtained paste to prepare an aqueous solution with a mass concentration of 5%, namely agent B.

Embodiment 2

[0090] 1.1 Colloidal raw ore

[0091] The chemical composition of collophosite raw ore samples includes: P 2 o 5 19.53%, MgO 5.64%, SiO 2 13.20%, CaO36.63%, Fe 2 o 3 1.46%, K 2 O 0.34%, Na 2 O 0.04%, F 1.42%, Al 2 o 3 0.90%, Loss 7.37%, CO 2 7.02%; sample particle size is -2mm.

[0092] The ore belongs to silicon-magnesia phosphate rock, with severe mudification and darker color. Among them, magnesium mainly exists in the form of dolomite, silicon mainly exists in the form of quartz, and sesquioxide mainly exists in the form of iron with a relatively high content. Under the microscope, iron mainly exists in the form of pyrite.

[0093] 1.2 Mineral dressing process

[0094] according to figure 1 The beneficiation process shown is carried out, figure 1 It is the flow chart of the ore dressing process in Example 2 of the present invention; wherein, 2' refers to stirring for 2 minutes after adding the corresponding agent, similarly, 5' refers to stirring for 5 min...

Embodiment 3

[0110] 1.1 Colloid ore: Same as Example 2.

[0111] 1.2 Mineral dressing process

[0112] Carry out according to the beneficiation flow process of embodiment 2, difference is, the dosage of agent of individual link is adjusted to some extent, and concrete process is as follows:

[0113] S1, with embodiment 2.

[0114] S2. Rough selection 1: Carry out according to Example 2, the difference is that the dosage of agent A is adjusted to 120g / t raw ore.

[0115] S3, rough selection two: carry out according to embodiment 2, the difference is that H 2 SO 4 The dosage is adjusted to 24Kg / t raw ore, and the dosage of agent B is adjusted to 500g / t raw ore.

[0116] S4, selection one: carry out according to embodiment 2, the difference is that H 2 SO 4 The dosage is adjusted to 2Kg / t raw ore, and the dosage of agent B is adjusted to 150g / t raw ore.

[0117] S5. Selection 2: Carry out according to Example 2, the difference is that the dosage of agent B is adjusted to 300g / t raw ore...

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Abstract

The invention provides a beneficiation method for collophanite. The beneficiation method comprises the following steps: a) grinding collophanite raw ore, and mixing the ground collophanite raw ore with water to obtain ore pulp; b) carrying out bulk flotation on the ore pulp and an agent A to obtain a roughed material 1 and a removed material 1; c) carrying out bulk flotation on the roughed material 1, sulfuric acid liquid and an agent B to obtain a roughed material 2 and a removed material 2; d) carrying out bulk flotation on the roughed material 2, a sulfuric acid solution and the agent B toobtain a concentrate 1 and a removed material 4; and e) carrying out bulk flotation on the concentrate 1 and the agent B to obtain a phosphate concentrate and a removed material 5, wherein the agent Ais an aqueous solution of ammonium dibutyl dithiophosphate black, ether alcohol and kerosene; and the agent B comprises oxidized paraffin soap, H2SO4 and water. According to the beneficiation processprovided by the invention, the P2O5 grade of the collophanite can be remarkably improved, and sesquioxide in the collophanite can be effectively removed.

Description

technical field [0001] The invention relates to the field of mineral processing, in particular to a method for mineral processing of collophanite. Background technique [0002] Phosphate rock is mainly used to produce phosphate fertilizer, and secondly used to produce yellow phosphorus, red phosphorus, phosphoric acid and other phosphate compounds. From the perspective of industrial types, phosphorite deposits are mainly divided into biochemical sedimentary phosphorite type, weathering and leaching residual phosphorite type, sedimentary metamorphic phosphorite type, metamorphic metasomatal phosphorite type, alkaline- There are six types of endogenous apatite type in basic-ultrabasic rocks and endogenous apatite type in partial alkaline ultrabasic rocks. From the perspective of beneficiation, phosphate rock can be divided into siliceous phosphate rock (the gangue is mainly quartz), silicon-magnesium phosphate rock (the gangster is mainly quartz, silicate and dolomite) and ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/00B03B1/00B03D1/018B03D103/06
CPCB03D1/00B03B1/00B03D1/018B03D2203/06Y02W10/37
Inventor 陈福林
Owner PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP