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بروف/ أيمن منصور — مستشار الكيماء
Prof./ Ayman Mansour — Chemistry Consultant
كود الكيمياء — Chemistry Code

Iron Ore Dressing Before Reduction

Clean bilingual dark animated SVG: text is separated from animation, with physical and chemical mechanisms.

Ore dressing flow diagram — مخطط تركيز الخام Advanced Iron Ore Dressing + Pretreatment Clean layout: animation stays in the lower dark zone; text and equations stay in the upper mechanism zone. iron mineral / concentrategangue / tailingsbubble / surface tensioneq. = chemical reaction 1- CRUSHING Mechanism: stress > rock strength 02 SCREENING / CLASSIFICATIONSize-controlled feedVibration stratifies particles;undersize passes apertures.Physical: size + hydraulic velocity 03 PHYSICAL SEPARATIONGravity / density contrastHeavy Fe minerals settle faster;light silica/clay reports to tailings.vₛ ∝ (ρparticle − ρfluid) 04 SURFACE TENSION / FLOTATIONBubble-mineral attachmentCollectors make target surface hydrophobic;bubbles lift hydrophobic grains.Fγ = γL, ΔP = 2γ/r 05 ROASTING - CHEMICAL PRETREATMENTGas-solid reactions before final reductionHeat removes water/CO₂/SO₂,oxidizes or magnetizes minerals.2FeO(OH) → Fe₂O₃ + H₂O4Fe₃O₄ + O₂ → 6Fe₂O₃3Fe₂O₃ + CO → 2Fe₃O₄ + CO₂4FeCO₃ + O₂ → 2Fe₂O₃ + 4CO₂4FeS₂ + 11O₂ → 2Fe₂O₃ + 8SO₂O₂ / CO ingases out 06 ELECTRIC SEPARATIONConductivity / charge behaviorCorona or tribo-charging gives q;electric field deflects particles.Fₑ = qE−+ 07 MAGNETIC SEPARATIONSusceptibility differenceMagnetite is strongly attracted;high-intensity field can capture hematite.Fₘ ∝ χV∇(B²)/(2μ₀)N S 08 SINTERING / PELLETIZINGAgglomerate fine concentrateWater surface tension forms green balls;heat causes diffusion + partial melt necks.C + O₂ → CO₂ + heatCaCO₃ → CaO + CO₂CaO + SiO₂ → CaSiO₃ 09 PREPARED BURDENReady for furnace / DRIHigh Fe grade, controlled size,good permeability and pellet strength.STOP: no metallic Fe reduction hereNext only: Fe₂O₃ + 3CO → 2Fe + 3CO₂ tailings: quartz, alumina, clay, water Physical mechanismsCrushing creates fracture surfaces and liberation; screening controls size.Gravity uses density difference; flotation uses surface tension and bubble attachment.Magnetic and electric separation use susceptibility, conductivity, and charge. Chemical pretreatmentRoasting removes H₂O/CO₂/SO₂, oxidizes or magnetizes ore, and increases porosity.Sintering/pelletizing bonds fines into strong porous furnace or DRI feed.Before reduction: oxides remain Fe₂O₃ / Fe₃O₄, not Fe metal.

Clean version created so text and animations do not overlap. File: iron_ore_dressing_clean_bilingual.html

أ/ أيمن منصور — مستشار الكيمياء|Prof./ Ayman Mansour — Chemistry Consultant📞 / WhatsApp: 01068018005 · 01287996430|كيمياء ٢٠٢٦ • Chemistry 2026
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