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Nickel polymetallic ore separation technology

A polymetallic ore and process technology, applied in flotation, solid separation, etc., can solve the problems of high MgO content in concentrate, poor flotation effect, and poor suppression effect, achieving high recovery rate, less operation, The effect of less potion consumption

Active Publication Date: 2017-05-24
CHINA ENFI ENGINEERING CORPORATION +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Most of the current nickel-polymetallic ore dressings use a single xanthate for flotation, and the flotation effect is not good. A single inhibitor is used for suppression during the flotation process, and the suppression effect is not good. The content of MgO in the concentrate is high, which is harmful to production. caused great inconvenience

Method used

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  • Nickel polymetallic ore separation technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] see figure 1 , a process flow chart of a nickel-polymetallic ore dressing process. The raw ore with a particle size of 400mm is crushed and screened. The grade of nickel in the raw ore is 0.75%, the grade of copper is 0.18%, and the grade of cobalt is 0.029%. Obtain fine ore with a particle size of 12mm; classify the fine ore with a particle size of 12mm through grinding to obtain a pulp with a particle size of -200 mesh accounting for 70%; add lemon to the pulp with a particle size of -200 mesh and account for 70% Acid, the dosage of citric acid is to add 1500g per ton of dry ore, the action time of citric acid is 3min, then add CMC, the consumption of CMC is to add 175g per ton of dry ore, and the action time of CMC is 3min; then add compound xanthate and For No. 2 oil, the dosage of compound xanthate is 60g per ton of dry ore, and the dosage of No. 2 oil is 43g per ton of dry mineral. The action time of compound xanthate and No. 2 oil is 2min. After stirring evenly, ...

Embodiment 2

[0025] see figure 1, a process flow chart of a nickel-polymetallic ore dressing process. The raw ore with a particle size of 300mm is crushed and screened. The grade of nickel in the raw ore is 0.73%, the grade of copper is 0.16%, and the grade of cobalt is 0.029%. Obtain fine ore with a particle size of 10mm; classify the fine ore with a particle size of 10mm through grinding to obtain a pulp with a particle size of -200 mesh accounting for 70%; add lemon to the pulp with a particle size of -200 mesh and account for 70% Acid, the dosage of citric acid is to add 1400g per ton of dry ore, the action time of citric acid is 3min, then add CMC, the consumption of CMC is to add 170g per ton of dry ore, and the action time of CMC is 3min; then add compound xanthate and For No. 2 oil, the dosage of compound xanthate is 55g per ton of dry ore, and the dosage of No. 2 oil is 40g per ton of dry mineral. The action time of compound xanthate and No. 2 oil is 2min. After stirring evenly, e...

Embodiment 3

[0027] see figure 1 , a process flow chart of a nickel-polymetallic ore dressing process. The raw ore with a particle size of 500mm is crushed and screened. The grade of nickel in the raw ore is 0.8%, the grade of copper is 0.2%, and the grade of cobalt is 0.03%. Obtain fine ore with a particle size of 15mm; classify the fine ore with a particle size of 15mm through grinding to obtain a pulp with a particle size of -200 mesh accounting for 70%; add lemon to the pulp with a particle size of -200 mesh and account for 70% Acid, the dosage of citric acid is to add 1600g per ton of dry ore, the action time of citric acid is 3min, then add CMC, the consumption of CMC is to add 180g per ton of dry ore, and the action time of CMC is 3min; then add compound xanthate and For No. 2 oil, the dosage of compound xanthate is 65g per ton of dry ore, and the dosage of No. 2 oil is 45g per ton of dry mineral. The action time of compound xanthate and No. 2 oil is 2min. After stirring evenly, ent...

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Abstract

A nickel polymetallic ore separation technology includes the steps of crushing and screening raw ore with the granularity ranging from 300 mm to 500 mm so as to obtain fine ore with the granularity ranging from 10 mm to 15 mm; grinding the fine ore with the granularity ranging from 10 mm to 15 mm prior to classification so as to obtain ore pulp with 70% of -200-mesh ore; adding citric acid into the ore pulp with 70% of -200-mesh ore, adding CMC, composite xanthate and No.2 oil sequentially, stirring uniformly, performing rougher flotation, concentrating twice to obtain final concentrate, and scavenging for three times so as to obtain final tailings. The nickel polymetallic ore separation technology has the advantages of less operation, high recovery yield, high product indexes, less chemical consumption and higher economic benefit.

Description

technical field [0001] The invention belongs to a beneficiation process, in particular to a nickel polymetallic ore beneficiation process. Background technique [0002] Nickel is an important non-ferrous metal raw material required by my country's high-tech development and national economic construction, and is called "industrial vitamin". With the rapid development of my country's national economy, the demand for nickel is increasing, but nickel resources are becoming poorer, finer and more complex. The economical and efficient utilization of low-grade and refractory copper-nickel sulfide ore resources is an important way to achieve self-sufficiency in nickel resources and ensure the sustainable development of my country's national economy and national security. [0003] Most of the current nickel-polymetallic ore dressings use a single xanthate for flotation, and the flotation effect is not good. A single inhibitor is used for suppression during the flotation process, and...

Claims

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Application Information

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IPC IPC(8): B03D1/008B03D1/016B03D1/012B03B1/00B03D101/02B03D101/06B03D103/02
CPCB03B1/00B03D1/008B03D1/012B03D1/016B03D2201/007B03D2201/02B03D2201/06B03D2203/02
Inventor 郭素红刘志国邓朝安唐广群孙明俊蔡楠王守良党电邦张景强谈伟军侯志和成传鹏
Owner CHINA ENFI ENGINEERING CORPORATION
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