How to increase KCl recovery during beneficiation of natural potash ores?
The main source of potassium fertilizers is sylvinite ores consisting primarily of halite (NaCl), silicate and clay-carbonate slurries (clay-salt slurries). Processing of natural potash ores is mainly carried out by the flotation method, which separates KCl, NaCl, and clay-salt slurry. The research is aimed at revealing the effect of sonochemical pretreatment of the depressor reagents, CMC and starch, on dynamic viscosity, aggregate size, electrokinetic potential of these reagent solutions and sylvin flotation performance. Sonochemical pretreatment of sylvin flotation depressors contributes to an increase in KCl recovery and a decrease in the slurry content in the flotation concentrate.
You can learn more about this from the article in our journal:
π₯ Burov V.E., Poilov V.Z., Huang Z., Chernyshev A.V., Kuzminykh K.G. Effect of sonochemical pretreatment of slurry depressors on sylvin flotation performance. Mining Science and Technology (Russia). 2022;7(4):298β309. https://doi.org/10.17073/2500-0632-2022-08-09 π₯
Subscribe to the journal's Telegram channel:
πt.iss.one/MinSciTechπ
#inenglish #MST #mining #beneficiation #flotation #ultrasound #depressor #slurry #carboxymethylcellulose #starch #zeta_potential #viscosity #recovery #ore #fertilizer #sylvinite
The main source of potassium fertilizers is sylvinite ores consisting primarily of halite (NaCl), silicate and clay-carbonate slurries (clay-salt slurries). Processing of natural potash ores is mainly carried out by the flotation method, which separates KCl, NaCl, and clay-salt slurry. The research is aimed at revealing the effect of sonochemical pretreatment of the depressor reagents, CMC and starch, on dynamic viscosity, aggregate size, electrokinetic potential of these reagent solutions and sylvin flotation performance. Sonochemical pretreatment of sylvin flotation depressors contributes to an increase in KCl recovery and a decrease in the slurry content in the flotation concentrate.
You can learn more about this from the article in our journal:
π₯ Burov V.E., Poilov V.Z., Huang Z., Chernyshev A.V., Kuzminykh K.G. Effect of sonochemical pretreatment of slurry depressors on sylvin flotation performance. Mining Science and Technology (Russia). 2022;7(4):298β309. https://doi.org/10.17073/2500-0632-2022-08-09 π₯
Subscribe to the journal's Telegram channel:
πt.iss.one/MinSciTechπ
#inenglish #MST #mining #beneficiation #flotation #ultrasound #depressor #slurry #carboxymethylcellulose #starch #zeta_potential #viscosity #recovery #ore #fertilizer #sylvinite
π4β€1β‘1π₯1π1
We present the articles of the third issue of scientific journal "Mining Science and Technologyβ (Russia) for 2024:
The resulting model can be used for general analysis of operability and stability, as well as for verifying the correct selection of key elements in the design of sucker-rod pump unit systems with variable frequency drives.
For more information, see the article:
π Ershov M.S., Efimov E.S. Stability of a controlled sucker-rod pump unit drive under operating conditions and during voltage dips in the electrical network. Mining Science and Technology (Russia). 2024;9(3):292-303. https://doi.org/10.17073/2500-0632-2024-01-213
Subscribe to the journal's Telegram channel:
πt.iss.one/MinSciTechπ
#inenglish #MST #pump #drive #control #voltage #frequency #brake #mode #energy #network #generator #current #torque #power #speed #rectifier #inverter #battery #signal #model #Matlab #Simulink #algorithm #emergency #protection #recovery #compensation #load #fluctuations #stability
The resulting model can be used for general analysis of operability and stability, as well as for verifying the correct selection of key elements in the design of sucker-rod pump unit systems with variable frequency drives.
For more information, see the article:
π Ershov M.S., Efimov E.S. Stability of a controlled sucker-rod pump unit drive under operating conditions and during voltage dips in the electrical network. Mining Science and Technology (Russia). 2024;9(3):292-303. https://doi.org/10.17073/2500-0632-2024-01-213
Subscribe to the journal's Telegram channel:
πt.iss.one/MinSciTechπ
#inenglish #MST #pump #drive #control #voltage #frequency #brake #mode #energy #network #generator #current #torque #power #speed #rectifier #inverter #battery #signal #model #Matlab #Simulink #algorithm #emergency #protection #recovery #compensation #load #fluctuations #stability
mst.misis.ru
Stability of a controlled sucker-rod pump unit drive under operating conditions and during voltage dips in the electrical networkβ¦
β€2π2β‘1π₯1π1
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
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
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
π4β‘1β€1π₯1π1
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?
π4β€2π₯1π1π―1