Copper mineral flotation method in a kind of seawater medium

A mineral flotation and seawater technology, applied in flotation, solid separation, etc., can solve the problems of low concentrate grade and high flotation difficulty, reduce consumption, improve flotation recovery rate and grade, and solve poor flotation indicators Effect

Active Publication Date: 2021-08-24
NORTHWEST RES INST OF MINING & METALLURGY INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a copper mineral flotation method in seawater medium to solve the problems of low concentrate grade and high flotation difficulty in the traditional seawater flotation process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A method for flotation of copper minerals in seawater medium, comprising the following steps:

[0029] Step 1. Add seawater and lime to 1 ton of raw ore. The amount of lime is 4000 grams. Grind it through a ball mill to obtain a slurry. Add sodium sulfide, water glass, sodium humate and sodium pyrosulfite to the slurry. Combination regulator, the consumption of combination regulator is 1000 grams, wherein the mass ratio of sodium sulfide, water glass, sodium humate and sodium pyrosulfite is 1.5:0.5:2.5:3.5, then the ore slurry is classified by a hydrocyclone to obtain Grading overflow (the mass concentration of the graded overflow is 33% ore pulp, the fineness of the graded overflow is less than 0.074mm, and the minerals account for 80% of the total minerals) and graded sand settling, the graded overflow enters the flotation operation, and the graded overflow The grit and raw ore are combined into the ball mill to form a closed loop;

[0030] Step 2: Add 30 grams of bu...

Embodiment 2

[0040] A method for flotation of copper minerals in seawater medium, comprising the following steps:

[0041] Step 1. Add seawater and lime to 1 ton of raw ore. The amount of lime is 5000 grams. Grind it through a ball mill to obtain a slurry. Add sodium sulfide, water glass, sodium humate and sodium metabisulfite to the slurry. Combination regulator, the consumption of combination regulator is 1500 grams, wherein the mass ratio of sodium sulfide, water glass, sodium humate and sodium metabisulfite is 2:1:3:4, then the ore slurry is classified by a hydrocyclone to obtain Grading overflow (the mass concentration of the graded overflow is 38% ore pulp, the fineness of the graded overflow is less than 0.074mm, and the minerals account for 80% of the total minerals) and graded sand settling, the graded overflow enters the flotation operation, and the graded overflow The grit and raw ore are combined into the ball mill to form a closed loop;

[0042]Step 2. Add 40 grams of butyl x...

Embodiment 3

[0052] A method for flotation of copper minerals in seawater medium, comprising the following steps:

[0053] Step 1. Add seawater and lime to 1 ton of raw ore. The amount of lime is 4500 grams. Grind it through a ball mill to obtain a slurry. Add sodium sulfide, water glass, sodium humate and sodium metabisulfite to the slurry. Combination regulator, the consumption of combination regulator is 1250 grams, wherein the mass ratio of sodium sulfide, water glass, sodium humate and sodium metabisulfite is 2.5:1.5:3.5:4.5, then the ore slurry is classified by hydrocyclone, obtained Grading overflow (the mass concentration of the graded overflow is 35% ore pulp, the fineness of the graded overflow is less than 0.074mm, and the minerals account for 80% of the total minerals) and graded sand settling, the graded overflow enters the flotation operation, and the graded overflow The grit and raw ore are combined into the ball mill to form a closed loop;

[0054] Step 2. Add 40 grams of ...

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PUM

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Abstract

The invention discloses a copper mineral flotation method in a seawater medium, belongs to the technical field of flotation, and solves the problems of low concentrate grade and high flotation difficulty in the traditional seawater flotation process. The invention comprises the following steps: adding seawater and lime to the raw ore, grinding the ore, adding a combined regulator made of sodium sulfide, water glass, sodium humate and sodium metabisulfite into the pulp, and grading the pulp; Add butyl xanthate, Z‑200 and terpineol oil to the stream and stir for flotation roughing; add lime to copper rough concentrate and stir for one beneficiation and two blank beneficiations. The present invention adopts low alkalinity and weak collection to roughen copper minerals, and adopts high alkalinity desulfurization and impurity suppression for rougher concentrate, which avoids problems such as sticky foam and high impurity in concentrate caused by direct roughing with high alkalinity ; The combination adjuster forms complexes with metal ions in seawater, which reduces the influence of salt components in seawater medium on the flotation environment.

Description

technical field [0001] The invention belongs to the technical field of flotation, and in particular relates to a copper mineral flotation method in seawater medium. Background technique [0002] Freshwater resources are relatively scarce on the earth, and seawater resources are abundant, especially in seashore areas short of freshwater. Because desalination of seawater requires a large amount of capital investment and increases production costs, seawater is directly used as the flotation medium. [0003] Flotation in seawater has the following characteristics: 1) Seawater, as a solution containing a large amount of salts, has a strong foaming ability, which means that seawater can enhance the hydrophobicity of minerals, but at the same time it has excellent buoyancy Target minerals are easier to float, which increases the difficulty of sorting target minerals and non-target minerals; 2) Seawater is a very complex multi-component aqueous solution, and various elements in seaw...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03D1/02B03B1/00B03D103/02
CPCB03B1/00B03D1/02B03D2203/02
Inventor 郭海宁任琳珠王李鹏包玺琳柏亚林杨俊龙王志丰彭贵熊刘坤李振宇
Owner NORTHWEST RES INST OF MINING & METALLURGY INST
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