Nickel Ore Beneficiation Solution: Innovative Process for Highly Efficient Recovery of Sulfide and Oxide Ore

Nickel is an important strategic metal resource, and its beneficiation process varies significantly depending on the type of ore. This nickel ore beneficiation solution systematically introduces the specialized beneficiation process for copper nickel sulfide ore and nickel oxide ore, including the core technologies of crushing and screening, grinding and classifying, flotation and separation, as well as the configuration of the supporting equipment and technological advantages, to provide a comprehensive solution for the efficient recovery and comprehensive utilization of nickel ore resources.

I. Characteristics and challenges of nickel ore beneficiation

Nickel ore beneficiation faces the following technical challenges:

• Diversified types of ores: mainly divided into copper nickel sulfide ore and nickel oxide ore, the treatment process varies greatly

• Complex symbiotic relationship: often symbiotic with copper, cobalt, iron and other metal minerals, high separation difficulty

• Uneven embedded particle size: embedded from coarse grains to micro-fine grains, requiring multi-stage grinding and dissociation.

• High recovery requirements: need to ensure the nickel grade and recovery rate, and comprehensive recovery of associated valuable metals

Second, the core nickel ore beneficiation process program

1. Crushing and screening system

• Coarse crushing process: Jaw crusher processing raw ore, crushing to 100-150mm.

• Medium crushing process: Cone crusher carries out medium crushing, and produces 30-50mm products.

• Fine crushing process: cone crusher + vibrating screen to form a closed loop, to ensure that the size of the crushed product -10mm.

2. Grinding and Classifying System

• One-stage grinding: ball mill and spiral classifier form a closed circuit, grinding to the appropriate size for roughing.

• Second stage grinding: ball mill and cyclone group cooperate to realize fine grinding and precise classification.

• Classification efficiency: adopting high-efficiency cyclone, the classification efficiency reaches more than 85%.

3. Flotation separation system

(1) Mixed flotation process

• Applicable ore: low copper-nickel ore (Cu/Ni<1)

• Process flow: primary rougher - secondary selection - secondary scavenging

• Technical characteristics: copper and nickel mixed flotation, then separation, high recovery rate

(2) Priority flotation process

• Applicable ore: high copper-nickel ore (Cu/Ni>1)

• Process flow: copper priority flotation - nickel flotation - separate selection

• Technical characteristics: good selectivity, high concentrate grade, but the process is relatively complex.

4. Concentrate dewatering system

• Concentration process: high-efficiency thickener for flotation concentrate, bottom stream concentration of 50-60%.

• Filtration process: Ceramic filter or plate and frame filter press for concentrate dewatering.

• Drying process: rotary drying kiln to further reduce the moisture of the concentrate (optional).

Third, nickel ore beneficiation production line key equipment configuration

Fourth, nickel ore dressing technology advantages

1. Process flexibility

• Strong adaptability of the program: according to the nature of the ore to choose mixed flotation or priority flotation

• Adjustable flow: process parameters can be adjusted in time according to the change of ore.

• Good compatibility of equipment: different types of nickel ores can be processed.

2. Advanced technology

• High efficiency recovery index: nickel recovery rate can reach 85%-92%.

• Energy-saving design concept: adopting stage grinding reduces energy consumption by 20-30%.

• Intelligent control system: key processes are equipped with automatic control system to realize precise control.

3. Remarkable economic benefits

• High return on investment: reasonable equipment selection and low investment cost.

• Optimization of operation cost: low energy consumption and pharmaceutical consumption, comprehensive cost reduction.

• Comprehensive utilization of resources: comprehensive recovery of associated valuable metals, increasing economic benefits.

V. Professional Technical Services

1. Experimental research services

• Ore selectivity test: determine the best process flow and parameters

• Laboratory test: provide detailed process mineralogical study

• Expanded test: conduct semi-industrial test to verify the process flow.

2. Engineering Design Services

• Process design: customized nickel ore beneficiation processes

• Production Line Layout: Reasonable equipment layout and plant design

• Automation design: intelligent control system design and configuration

3. Equipment Supply Service

• Equipment Selection Recommendation: Select the best equipment according to the ore characteristics.

• Equipment Manufacturing and Supply: Provide high quality key equipment

• Spare parts supply guarantee: ensure the continuous and stable operation of the production line.

4. Engineering construction services

• Installation guidance: professional technical team on-site installation guidance

• Commissioning service: commissioning and optimization of the production line

• Technical training: operation and maintenance personnel training

Application cases

A copper-nickel sulfide mine project in Gansu

• Properties of raw ore: nickel grade 0.8%, copper grade 0.6%, Cu/Ni = 0.75

• Process: Mixed flotation process

• Production index: Nickel concentrate grade 12.5%, recovery rate 89.5%; copper concentrate grade 18.2%, recovery rate 82.3

Nickel ore beneficiation is a technology-intensive systematic project, which requires customized solutions according to the type and characteristics of the ore. Our nickel ore beneficiation solutions are tailored to the different characteristics of copper-nickel sulfide ores and nickel oxide ores, adopting advanced crushing, grinding, flotation and dewatering processes, and equipped with highly efficient and energy-saving equipments to ensure the efficient recovery and comprehensive utilization of nickel ore resources.

We provide the whole process service from experimental research, engineering design, equipment supply to installation and commissioning to ensure that our customers get the best technical indicators and economic benefits. Specific nickel ore beneficiation solution parameters need to be determined according to the nature of the ore test, it is recommended to carry out beneficiation test research first.

Welcome to inquire for more technical information and personalized program design, our professional and technical team will provide you with the best quality nickel ore beneficiation solutions.