Dry technologies for processing and enrichment of mineral raw materials - pros and cons!
The use of dry methods of processing and beneficiation of mineral raw materials is one of the promising areas, as this approach to concentrate production is less energy-consuming, less labor-intensive, and economically beneficial. However, this method of enrichment is not always technologically effective. Experimental studies on the experimental studies on preliminary dry separation of Arkachan deposit ores to determine the quality of beneficiation of the separation products are presented in an article in the journal Mining Science and Technology. The results of the study showed, dry beneficiation as applied to the ores of Arkachan deposit is technologically inefficient. Additional laboratory studies of pneumatic separation processes at high degree of ore materials grinding are required. The authors of the study are confident that their methodological approach will be useful for colleagues in substantiating technologies for processing and beneficiation of mineral raw materials.
For more information, see the article:
π Matveev Π.I., Lebedev I.F., Vinokurov V.R., Lvov E.S. Comparative processing studies of the Arkachan deposit gold-bearing ores using dry separation and classical wet gravity separation methods. Mining Science and Technology (Russia). 2024;9(2):158-169. https://doi.org/10.17073/2500-0632-2023-10-168
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#inenglish #MST #beneficiation #ore #gold #grinding #crushing #pneumaticseparation #gravity #concentrator #classification #mill #crusher #recovery #concentrate #tails #size #fractions #separation #content #release #surface #pneumaticseparator #magnetic #dry #goldbearing #cycle #deposit #sample #methodology #test #technology #efficiency #property #particle #material #economy #recycling
The use of dry methods of processing and beneficiation of mineral raw materials is one of the promising areas, as this approach to concentrate production is less energy-consuming, less labor-intensive, and economically beneficial. However, this method of enrichment is not always technologically effective. Experimental studies on the experimental studies on preliminary dry separation of Arkachan deposit ores to determine the quality of beneficiation of the separation products are presented in an article in the journal Mining Science and Technology. The results of the study showed, dry beneficiation as applied to the ores of Arkachan deposit is technologically inefficient. Additional laboratory studies of pneumatic separation processes at high degree of ore materials grinding are required. The authors of the study are confident that their methodological approach will be useful for colleagues in substantiating technologies for processing and beneficiation of mineral raw materials.
For more information, see the article:
π Matveev Π.I., Lebedev I.F., Vinokurov V.R., Lvov E.S. Comparative processing studies of the Arkachan deposit gold-bearing ores using dry separation and classical wet gravity separation methods. Mining Science and Technology (Russia). 2024;9(2):158-169. https://doi.org/10.17073/2500-0632-2023-10-168
Subscribe to the journal's Telegram channel:
πt.iss.one/MinSciTechπ
#inenglish #MST #beneficiation #ore #gold #grinding #crushing #pneumaticseparation #gravity #concentrator #classification #mill #crusher #recovery #concentrate #tails #size #fractions #separation #content #release #surface #pneumaticseparator #magnetic #dry #goldbearing #cycle #deposit #sample #methodology #test #technology #efficiency #property #particle #material #economy #recycling
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What are the environmental consequences of mining operations in Arctic regions?
The problems of geoenvironmental consequences of mining operations are especially acute in the arctic and subarctic regions, where the spread of permafrost significantly reduces the buffering capacity of landscapes. The research, the results of which are published in the journal Mining Science and Technology, demonstrates data on the content of heavy metals in the soil cover of the transient zone between the middle taiga and north taiga landscapes of Western Yakutia under the conditions of mining operations. The authors proposed new approaches to evaluation assesses the resistance of different types of soils to heavy metals pollution. The heavy metals content was determined by atomic absorption spectrometry. Among the studied pollutants the greatest tendency to binding by natural organic ligands was revealed for such elements as lead and copper. Zinc and nickel will actively migrate in the ionic form. Cadmium occupies an intermediate position in terms of the ratio of ionic and organically bound forms. The data presented in the study can be used in monitoring the state of the soil cover in the mining zone.
For more information, see the article:
π Titov A.S., Toropov A.S. Geoenvironmetal assessment of different types of cryolithic soils in Western Yakutia under the conditions of diamond-mining operations. Mining Science and Technology (Russia). 2024;9(2):170-182. https://doi.org/10.17073/2500-0632-2023-12-188
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#inenglish #MST #soil #heavymetals #pollution #cryolithic #WesternYakutia #diamond #mining #enterprises #geoecology #assessment #content #metals #cover #landscape #production #stability #analysis #spectrometry #modeling #structure #humus #migration #kimberlite #complex #geochemistry #thermodynamic #sample #horizon #zinc #nickel #cadmium #lead #copper #arsenic #mercury
The problems of geoenvironmental consequences of mining operations are especially acute in the arctic and subarctic regions, where the spread of permafrost significantly reduces the buffering capacity of landscapes. The research, the results of which are published in the journal Mining Science and Technology, demonstrates data on the content of heavy metals in the soil cover of the transient zone between the middle taiga and north taiga landscapes of Western Yakutia under the conditions of mining operations. The authors proposed new approaches to evaluation assesses the resistance of different types of soils to heavy metals pollution. The heavy metals content was determined by atomic absorption spectrometry. Among the studied pollutants the greatest tendency to binding by natural organic ligands was revealed for such elements as lead and copper. Zinc and nickel will actively migrate in the ionic form. Cadmium occupies an intermediate position in terms of the ratio of ionic and organically bound forms. The data presented in the study can be used in monitoring the state of the soil cover in the mining zone.
For more information, see the article:
π Titov A.S., Toropov A.S. Geoenvironmetal assessment of different types of cryolithic soils in Western Yakutia under the conditions of diamond-mining operations. Mining Science and Technology (Russia). 2024;9(2):170-182. https://doi.org/10.17073/2500-0632-2023-12-188
Subscribe to the journal's Telegram channel:
πt.iss.one/MinSciTechπ
#inenglish #MST #soil #heavymetals #pollution #cryolithic #WesternYakutia #diamond #mining #enterprises #geoecology #assessment #content #metals #cover #landscape #production #stability #analysis #spectrometry #modeling #structure #humus #migration #kimberlite #complex #geochemistry #thermodynamic #sample #horizon #zinc #nickel #cadmium #lead #copper #arsenic #mercury
mst.misis.ru
Geoenvironmetal assessment of different types of cryolithic soils in Western Yakutia under the conditions of diamond-mining operationsβ¦
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π Dry vs wet: unexpected results for Arkachan gold ore
Comparison Methods:
βοΈ Dry Processing: Crushing (DKD-300) + Grinding (TsMVU-800) + Pneumatic Separation (POS-2000)
βοΈ Wet Processing: Gravity Separation with GRG Test (ITOMAK-0.1)
π Key Data:
Gold Distribution:
βοΈ 27.35% in -0.2+0.1 mm class;
βοΈ 11.75% in -0.1+0.071 mm class;
βοΈ 23.46% in -0.071 mm class;
β Total 62.56% in particles <0.2 mm
Method Efficiency:
βοΈ pneumatic Separation: 35.25% recovery at 1.8 t/h;
βοΈ GRG Test: 73.91% recovery with grinding to 80% passing 0.071 mm.
GRG Test Results by Stage:
βοΈ Stage 1 (-1 mm): 40.20% recovery;
βοΈ Stage 2 (-0.315 mm): +14.46%;
βοΈ Stage 3 (-0.071 mm): +20.88%.
Conclusions:
1. Dry methods are ineffective for fine-grained gold (<100 Β΅m).
2. Gravity separation requires fine grinding but achieves high recovery.
3. Major losses are due to incomplete liberation of gold in pyrite.
π Full Article:
Matveev Π.I., Lebedev I.F., Vinokurov V.R., Lvov E.S. Comparative processing studies of the Arkachan deposit gold-bearing ores using dry separation and classical wet gravity separation methods. Mining Science and Technology (Russia). 2024;9(2):158-169. https://doi.org/10.17073/2500-0632-2023-10-168
π Subscribe: @MinSciTech
π¬ What modern methods could improve dry processing for such ores?
#InEnglish #MST #Mining #Gold #Beneficiation #Crusher #Mill #Separator #DryProcessing #ParticleSize #Pyrite #Sample #Ore #Test #Method #Analysis #Stage #Class #Gravity #FineGrained #Particles #Concentrate #Grinding #Efficiency #Crushing #Recovery #Flowchart #Cycle #Fraction #Balance #Parameter #Mode #Degree #Impact #Abrasion #Subsample #Sludge #Pulp #SizeFraction #Feed #Tailings #Losses #Product #Intergrowths
P.S. For ores with fine-grained gold, classical gravity remains optimal. Are there alternatives?
Comparison Methods:
βοΈ Dry Processing: Crushing (DKD-300) + Grinding (TsMVU-800) + Pneumatic Separation (POS-2000)
βοΈ Wet Processing: Gravity Separation with GRG Test (ITOMAK-0.1)
π Key Data:
Gold Distribution:
βοΈ 27.35% in -0.2+0.1 mm class;
βοΈ 11.75% in -0.1+0.071 mm class;
βοΈ 23.46% in -0.071 mm class;
β Total 62.56% in particles <0.2 mm
Method Efficiency:
βοΈ pneumatic Separation: 35.25% recovery at 1.8 t/h;
βοΈ GRG Test: 73.91% recovery with grinding to 80% passing 0.071 mm.
GRG Test Results by Stage:
βοΈ Stage 1 (-1 mm): 40.20% recovery;
βοΈ Stage 2 (-0.315 mm): +14.46%;
βοΈ Stage 3 (-0.071 mm): +20.88%.
Conclusions:
1. Dry methods are ineffective for fine-grained gold (<100 Β΅m).
2. Gravity separation requires fine grinding but achieves high recovery.
3. Major losses are due to incomplete liberation of gold in pyrite.
π Full Article:
Matveev Π.I., Lebedev I.F., Vinokurov V.R., Lvov E.S. Comparative processing studies of the Arkachan deposit gold-bearing ores using dry separation and classical wet gravity separation methods. Mining Science and Technology (Russia). 2024;9(2):158-169. https://doi.org/10.17073/2500-0632-2023-10-168
π Subscribe: @MinSciTech
π¬ What modern methods could improve dry processing for such ores?
#InEnglish #MST #Mining #Gold #Beneficiation #Crusher #Mill #Separator #DryProcessing #ParticleSize #Pyrite #Sample #Ore #Test #Method #Analysis #Stage #Class #Gravity #FineGrained #Particles #Concentrate #Grinding #Efficiency #Crushing #Recovery #Flowchart #Cycle #Fraction #Balance #Parameter #Mode #Degree #Impact #Abrasion #Subsample #Sludge #Pulp #SizeFraction #Feed #Tailings #Losses #Product #Intergrowths
P.S. For ores with fine-grained gold, classical gravity remains optimal. Are there alternatives?
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