A kind of beneficiation method of silicate, carbonate type fluorite ore

A beneficiation method and carbonate technology, which are applied in chemical instruments and methods, flotation, wet separation, etc., can solve the problems of high impurity content and low recovery rate of concentrate products, and achieve easy on-site implementation and control. Silica and calcium carbonate content, the effect of reducing beneficiation costs

Active Publication Date: 2022-03-29
NORTHWEST RES INST OF MINING & METALLURGY INST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a mineral processing method for silicate and carbonate type fluorite ore, so as to solve the problems of low recovery rate and high impurity content of concentrate products in existing mineral processing methods

Method used

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  • A kind of beneficiation method of silicate, carbonate type fluorite ore
  • A kind of beneficiation method of silicate, carbonate type fluorite ore

Examples

Experimental program
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Effect test

Embodiment 1

[0028] A fluorite mine in Gansu has relatively simple mineral composition, the ore mineral is only fluorite, the gangue mineral is mainly quartz, a small amount of calcite, clay mineral kaolin, etc. Part of fluorite (accounting for about 10%) is mixed with gangue minerals such as quartz, clay minerals, and calcite. The particle size is fine and the intercalation relationship is complicated, so it is difficult to dissociate. Raw ore (that is, raw ore 1 in Table 1) test ore sample CaF 2 The grade is 38.25%, CaCO 3 The grade is 6.53%, SiO 2 The grade is 38.52%.

[0029] Step 1. Grinding: Grinding the ore until the particle size is less than 74 μm accounts for 60%;

[0030] Step 2, roughing operation: heating the pulp to make the temperature of the pulp 20°C, using sulfuric acid (a) as a pH regulator, the amount of sulfuric acid (a) is 350g / t, and the gangue inhibitor is gangue inhibitor T20 ( b) combined with acidic water glass (c), the amount of gangue inhibitor T20 (b) is 2...

Embodiment 2

[0043] A fluorite mine in Inner Mongolia has relatively simple mineral composition, and the useful mineral is fluorite. The gangue minerals are mainly quartz, with a small amount of mica, calcite, chlorite, kaolin and so on. The relationship between fluorite and quartz intercalation is relatively close, and the two are mainly adjacent to each other, and some of them are encased. Raw ore (that is, raw ore 2 in Table 1) CaF 2 Grade 35.97%, SiO 2 The grade is 42.67%, CaCO 3 The grade is 8.72%.

[0044] Step 1. Grinding: Grinding the ore until the particle size is 70% or less;

[0045] Step 2, roughing operation: heating the pulp to make the temperature of the pulp 25°C, using sulfuric acid as a pH regulator, the amount of sulfuric acid (a) is 500g / t, gangue inhibitor T20 (b) and gangue inhibitor Acidic water glass (c) combination, the dosage of gangue inhibitor T20 (b) is 250g / t, the dosage of acidic water glass (c) is 800g / t, and the dosage of collector Y-8 (d) is 180g / t. ...

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Abstract

The invention discloses a mineral processing method for silicate and carbonate type fluorite ore, which belongs to the technical field of non-metallic mineral processing and solves the problems of low recovery rate and high impurity content of concentrate products existing in the existing mineral processing method . The invention comprises the following steps: ore grinding; roughing operation, the gangue inhibitor adopts the combination of T20 and acidic water glass, the collector adopts Y-8, and the gangue inhibitor T20 includes polyaspartic acid, aluminum sulfate and hydroxyethyl Forked diphosphonic acid, the mass ratio is 3~6:4:0.5~1, the collector Y-8 includes sodium oleate, 4-oxytetradecanoic acid and polyethylene glycol monooctylphenyl ether, the mass ratio 6~7︰2~3︰1; Sweeping operation, adding collector Y‑8; Coarse concentrate regrinding; Sorting operation, using inhibitor T20 and acidic water glass, collector using Y‑8. The invention can effectively reduce the impurity content in the concentrate product and improve the grade of the fluorite concentrate under the condition of relatively low temperature.

Description

technical field [0001] The invention belongs to the technical field of non-metallic ore beneficiation, and in particular relates to a beneficiation method of silicate and carbonate type fluorite ore. Background technique [0002] Fluorite is the most important fluorine-containing industrial raw material, which is widely used in chemical industry, metallurgy, building materials, machinery, aviation and other industrial sectors, and is also used as an important high-energy material in emerging industries. my country is rich in fluorite resources, but the reserves of single-type fluorite deposits are small, and the reserves of associated (or symbiotic) fluorite deposits are abundant. When silicate contains gangue minerals such as carbonate, the symbiotic relationship is complicated, and its buoyancy is similar, which increases the difficulty of sorting fluorite. [0003] Flotation is the most common method for enriching fluorite. A large number of flotation practices show that ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03B7/00B03B9/00B03D1/018B03D101/02B03D101/06B03D103/04
CPCB03B7/00B03B9/00B03D1/018B03D2201/007B03D2201/02B03D2201/06B03D2203/04
Inventor 刘守信师伟红王奕斐周涛余江鸿黄国贤李飞路军兵高彦萍梁友乾肖胤强张红王玲
Owner NORTHWEST RES INST OF MINING & METALLURGY INST
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