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- W2001763892 abstract "Tests are carried out with suspensions of fibrous chrysotile particles and nickel sulphide ore containing chrysotile as a gangue. They corroborate published results, and indicate a very strong effect of particle shape on slurry rheology. Such suspensions exhibit time dependent properties. The flotation tests revealed that the viscosity of this system strongly affects flotation performance. At a solids concentration of 15–20% (w/w), the concentrate yield increases and the concentrate grade dramatically declines. This deterioration is observed when the Casson yield stress exceeds 1·5–2 Pa. The tests imply that the rheological properties of the investigated system are mainly determined by fibrous components. However, because of the presence of anisotropic mineral particles, the effect of particle–particle interactions cannot be separated from the effect of particle shape in this system.On effectue des essais avec des suspensions de particules fibreuses de serpentine et de minerai de sulfure de nickel contenant de la serpentine comme gangue. Ces essais confirment les résultats publiés et indiquent un effet très prononcé de la forme des particules sur la rhéologie de la boue. De telles suspensions exhibent des propriétés dépendantes du temps. Les essais de flottation ont révélé que la viscosité de ce système affecte grandement le rendement de la flottation. À une concentration en solides de 15 à 20% (poids/poids), la production de concentré augmente et la qualité du concentré décline dramatiquement. Cette détérioration est observée lorsque la contrainte de Casson excède 1·5 à 2 Pa. Les essais impliquent que les propriétés rhéologiques du système étudié sont déterminées principalement par les composantes fibreuses. Cependant, à cause de la présence de particules minérales anisotropes, on ne peut pas séparer l’effet des interactions particule-particule de l’effet de la forme des particules dans ce système." @default.
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- W2001763892 date "2012-10-01" @default.
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- W2001763892 title "Effect of pulp rheology on flotation of nickel sulphide ore with fibrous gangue particles" @default.
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- W2001763892 doi "https://doi.org/10.1179/1879139512y.0000000006" @default.
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