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 suppressio

Method used

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  • Nickel polymetallic ore separation technology

Examples

Experimental program
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Effect test

Example Embodiment

[0022] Example 1

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

Example Embodiment

[0024] Example 2

[0025] see figure 1, a process flow diagram of a nickel-polymetallic ore beneficiation process, the raw ore with a particle size of 300mm is crushed and screened, and the nickel grade in the raw ore is 0.73%, the copper grade is 0.16%, and the cobalt grade is 0.029%. Obtain the fine ore with a particle size of 10 mm; classify the fine ore with a particle size of 10 mm through grinding and classification to obtain an ore pulp with an ore particle size of -200 mesh accounting for 70%; add lemon to the ore pulp with an ore particle size of -200 mesh accounting for 70% Acid, the dosage of citric acid is 1400g per ton of dry ore, the action time of citric acid is 3min, then CMC is added, the dosage of CMC is 170g per ton of dry ore, the action time of CMC is 3min; then compound xanthate and 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 ore. The action time of compound xanthate and No. 2 oi...

Example Embodiment

[0026] Example 3

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

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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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