- SMBS, copper flotation while zinc depression under low alkali condition and Cu/Zn coarse concentrate ultra-fine grinding
- developed the process of "partial mixed floatation-middling combined copper flotation“
- solved the problems of high ion content in mineral grain boundaries and difficult separation of Cu-Zn polymetallic ore
- will add $4.7 million to Bisha's plants in 2020.
The Mineral Processing Division is one of core divisions of Zijin Research Institute of Mining and Metallurgy /Xiamen Zijin Technology of Mining and Metallurgy Ltd., State Key Laboratory of Comprehensive Utilization of Low-Grade Refractory Gold Ores.
The Division currently has a multi-disciplinary group of scientists and engineers specializing in mineral processing, chemical engineering and organic chemistry, and is well equipped with laboratory platforms for gravity separation, magnetic separation, bench-scale flotation and continuous piloting flotation separation testing.
MPD is devoted to provide world-class applied research and deliver innovative solutions to address the challenges in mining industry. The Division offers high-efficiency beneficiation technology, novel flotation reagents development, process investigation, plant survey, both laboratory and field services to help our customers achieve positive and sustainable development. Since its establishment, the Division has provided technical services for worldwide mining subsidiaries of Zijin Group Co. and has undertaken more than 200 scientific research projects.
1. Research direction:
(1) Development and optimization of flowsheet, beneficiation process, and piloting scale testing;
(2) Promotion and application of new equipment;
(3) Research, development and application of new flotation reagents;
(4) Research on process control, simulation and automation in beneficiation.
（1）Gravity and magnetic separation
Conventional gravity processing methods, such as shaking table, spiral chute;
High-efficient centrifugal separation by Knelson Concentrators, especially for gravity recoverable gold (GRG) testing;
Magnetic separators with different magnetic intensity, including magnetic tube, wet feebleness magnetic separation machine, and high-gradient magnetic separator etc.
Batch flotation cells available in volume from 0.2L to 20L and multi-compartment cells (Jilin, and Wuhan manufacturers, China);
Expertise in open-circuit and locked-cycle flotation testing;
Continuous piloting plant flotation testing (Shang hang, China) ;
Flotation parameters optimization, such as process flowsheet adjustment (rougher, scavenger, cleaner, flotation time etc.), reagent schemes (collector, depressant, modifier, frother etc.), particle size determination (primary griding, regrinding and ultrafine grinding).
High-pressure grinding roll
JK falling weight impact test device
JKSIMET beneficiation and grinding process simulation and optimization software (monitor and determine specific parameters for ore comminution process)
3. Main process technical services:
(1) Efficient separation and comprehensive utilization of complex polymetallic sulfide ore
For the complex and refractory Cu-Pb-Zn polymetallic and associated precious metal sulfide ores, we can provide efficient and effective beneficiation packages. At present, a set of solutions, such as bulk and selective flotation, differential flotation, ultra-fine grinding, flash flotation, effective copper collector and lead depressant , etc. are available to solve process and operation issues. All such technical solution packages have been successfully applied in our Zijin mining industry, creating significant economic benefits for enterprises.
(2) Novel high-efficiency flotation technology for refractory oxide copper ore
For the refractory sulfide-oxide mixed copper ore, we offer a new scheme of " first sulfide and following oxide, sulfide/oxide copper sequential flotation" integrating with bulk flotation, desliming, magnetic separation. Our novel solution is able to recover as high as 85% Cu from refractory oxide copper ore, creating great economic benefits for the enterprises.
(3)New high-efficiency flotation technology for arsenic-bearing low grade refractory gold ore
For the arsenic-bearing micro-fine refractory gold ore, we provide novel flotation schemes (electrochemistry, carrier-flotation, flash-flotation, ultra-fine grinding, etc.), new reagents (gold promotor, arsenic depressant, pH and ORP modifier etc.) and beneficiation-metallurgy combined process.
(4)Diagnosis and optimization of comminution systems
We deliver services of examination, diagnosis and optimization for crushing, grinding and classification, such as determination of ore comminution performance, optimization of SAG mill process, ball mill grinding and classification parameters, and charging ball system in mill, so as to achieve "more crushing and less grinding" objective, maximize system capacity, improve beneficiation performance and reduce energy cost.
We offer site technical services with our available technological packages for our clients and have established long-term cooperation relationship with many mines. Our scientific researchers root in field and provide comprehensive technical services, such as stabilizing process and optimizing performance, investigating beneficiation process, applying new process, new reagent and new equipment, etc..
Vacuum Atmosphere Tube FurnaceFor roasting tests under vacuum and different atmospheresVacuum Atmosphere Tube Furnace0.00For roasting tests under vacuum and different atmospheres
High Temperature Vertical Tube FurnaceFor roasting and smelting tests under vacuum and different atmospheresHigh Temperature Vertical Tube Furnace0.00For roasting and smelting tests under vacuum and different atmospheres
High Temperature Atmosphere Box FurnaceFor roasting and smelting tests under atmosphere-control conditionsHigh Temperature Atmosphere Box Furnace0.00For roasting and smelting tests under atmosphere-control conditions
Vacuum Distillation FurnaceFor vacuum metallurgy experimentsVacuum Distillation Furnace0.00For vacuum metallurgy experiments
SX-EW Pilot PlantPilot test for solvent extraction of copper, zinc, nickel or other impuritiesSX-EW Pilot Plant0.00Pilot test for solvent extraction of copper, zinc, nickel or other impurities
Standard constant temperature and humidity curing box (YH-40B)
Soil geochemical characteristics equipment
Soil fertility analyzer
Radioactivity detector (ZDD3901)
Leaching toxicity test equipment (YKZ-08)
Flue gas treatment and recovery unit
Electrodialysis membrane equipment (GCM-E-10)Desalination and acid-base recovery of high salinity mine wastewaterElectrodialysis membrane equipment (GCM-E-10)0.00Desalination and acid-base recovery of high salinity mine wastewater
Ro/NF membrane (1812)Separation, purification and concentration of different components of feed liquidRo/NF membrane (1812)0.00Separation, purification and concentration of different components of feed liquid
Multifunctional membrane for pilot test (2540)Efficient resource recovery and utilization of acid mine wastewater, cyanide containing wastewater, lean solution of nonferrous smelting, high salinity process water, etcMultifunctional membrane for pilot test (2540)0.00Efficient resource recovery and utilization of acid mine wastewater, cyanide containing wastewater, lean solution of nonferrous smelting, high salinity process water, etc
Membrane for ammonia nitrogen removalAmmonia nitrogen removal from wastewaterMembrane for ammonia nitrogen removal0.00Ammonia nitrogen removal from wastewater
Low bed resin column acid recovery systemRecovery of acid from acid wastewaterLow bed resin column acid recovery system0.00Recovery of acid from acid wastewater
Ion exchange resin systemAdvanced treatment of heavy metals and COD in WastewaterIon exchange resin system0.00Advanced treatment of heavy metals and COD in Wastewater
Automatic Sample Polishing Machine (Tegramin-25)Sample preparation for microstructure analysis of solid materialsAutomatic Sample Polishing Machine (Tegramin-25)0.00Sample preparation for microstructure analysis of solid materials
Struers Cutting Machine (ACCUTOM-50)Precise cutting of ore, metal, ceramic, crystal and other research materials without deformation.Struers Cutting Machine (ACCUTOM-50)0.00Precise cutting of ore, metal, ceramic, crystal and other research materials without deformation.
Electrostatic Sprayer (SP201)Spraying device for fuel cell membrane electrodeElectrostatic Sprayer (SP201)0.00Spraying device for fuel cell membrane electrode