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In Bayer processBayer process, hydrodynamicHydrodynamics parameters like flow regime, agitation, seed suspension and its dynamics critically affect ATHAluminium Trihydrate (ATH)’s morphology, particle size, surface propertiesProperties, and reactivity by governing its nucleation and crystal growth behaviour. Optimizing hydrodynamicHydrodynamics parameters enhances ATHAluminium Trihydrate (ATH) propertiesProperties like bulk densityBulk density, sphericity, and purity, depending upon end-use applications. Correlations between these parameters and ATHAluminium Trihydrate (ATH)’s characteristics are established in lab scale using techniques, namely SEM, XRD, Sedigraph, BET, XRF, etc. This study examines how hydrodynamicsHydrodynamics using experimental fluid dynamicsExperimental Fluid Dynamics (EFD), namely thermocouples and RTDs in precipitation, influence ATHAluminium Trihydrate (ATH)’s propertiesProperties. Experimental fluid dynamicsExperimental Fluid Dynamics (EFD) by repeated analysis and characterizationCharacterization confirm that optimized mixing and flow enhance seed dispersion, crystal growth, and reduce agglomeration. Experimental work suggests increasing impeller speed from 100 to 700 rpm and gives us 10 μm to 2 μm particle size. This approach improves ATHAluminium Trihydrate (ATH) qualityQuality, process efficiency, sustainabilitySustainability and enables controlled particle size, porosity, surface area, and purity.

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The Influence of Hydrodynamics in the Bayer Process on the Features and Properties of Aluminium Trihydrate

  • 会议论文

  • 发表日期：

    2026年

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  • Ganesh Basak,
  • Juhi Bhure,
  • Madhur Kolte,
  • Hirak Mitra

摘要

In Bayer processBayer process, hydrodynamicHydrodynamics parameters like flow regime, agitation, seed suspension and its dynamics critically affect ATHAluminium Trihydrate (ATH)’s morphology, particle size, surface propertiesProperties, and reactivity by governing its nucleation and crystal growth behaviour. Optimizing hydrodynamicHydrodynamics parameters enhances ATHAluminium Trihydrate (ATH) propertiesProperties like bulk densityBulk density, sphericity, and purity, depending upon end-use applications. Correlations between these parameters and ATHAluminium Trihydrate (ATH)’s characteristics are established in lab scale using techniques, namely SEM, XRD, Sedigraph, BET, XRF, etc. This study examines how hydrodynamicsHydrodynamics using experimental fluid dynamicsExperimental Fluid Dynamics (EFD), namely thermocouples and RTDs in precipitation, influence ATHAluminium Trihydrate (ATH)’s propertiesProperties. Experimental fluid dynamicsExperimental Fluid Dynamics (EFD) by repeated analysis and characterizationCharacterization confirm that optimized mixing and flow enhance seed dispersion, crystal growth, and reduce agglomeration. Experimental work suggests increasing impeller speed from 100 to 700 rpm and gives us 10 μm to 2 μm particle size. This approach improves ATHAluminium Trihydrate (ATH) qualityQuality, process efficiency, sustainabilitySustainability and enables controlled particle size, porosity, surface area, and purity.