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	Tvättbarhetsanalys	Flotationskinetik	Trompkurvan
Ämnesområde	Gruvteknik	Gruvteknik	Gruvteknik
Familj	Process / pipeline	Process / pipeline	Process / pipeline
Ursprungsår	1950	1935	1937
Upphovsperson	Mining Industry Practice (1930s-1960s)	Garcia-Zuniga	K. Tromp
Typ	Separation analysis by density fractionation	First-order kinetic model for flotation recovery	Empirical model for size classifier performance
Ursprungskälla	McCullough, R. B. (1963). The theoretical basis and practical application of coal washability studies. Transactions of the Society of Mining Engineers, 226, 13-26.	Garcia-Zuniga, H. (1935). Uber eine neue Methode, zur Berechnung der Flotationsausbeute. Zeitschrift fur Praktische Geologie, 43(2), 12-19.	Tromp, K. (1937). Separation of fine particles from slurries by hydrocyclone. Colliery Guardian, 155(4), 251-256.
Alias	Coal Washability, Density Separation Analysis, Float-Sink Analysis	Batch Flotation Model, Flotation Rate Constants, Kinetic Flotation Analysis	Partition Curve, Classification Efficiency Curve, Grade Recovery Curve
Närliggande	3	3	3
Sammanfattning	Washability analysis is a laboratory method that determines the feasibility and efficiency of density-based separation for coal or mineral beneficiation. By fractionating ore or coal into density bins using sink-float tests and assaying each fraction, engineers can optimize design of separation plants (dense-medium cyclones, jigs, spirals) and predict clean product quality. Washability curves are essential tools for pre-feasibility and detailed design studies.	Flotation kinetics is the study of how recovery of minerals from ore changes over time during flotation. The Garcia-Zuniga model, introduced in 1935, describes recovery as a first-order kinetic process with rate constant k and maximum recoverable fraction R∞. This simple model underpins flotation cell design and process optimization, enabling engineers to predict flotation performance from batch tests and scale results to industrial circuits.	The Tromp Curve, introduced by K. Tromp in 1937, is an empirical model that quantifies the performance of size classifiers (cyclones, screens, jigs) by showing the fraction of particles at each size that report to the target stream (overflow or underflow). It is universally used in mineral processing to evaluate classifier performance, design circuits, and diagnose operational problems.