SLURRY WASHING BY CROSS-FLOW FILTRATION

Authors
HOLDICH RG CUMMING IW ISMAIL B
Citation
Rg. Holdich et al., SLURRY WASHING BY CROSS-FLOW FILTRATION, Transactions - Institution of Mining and Metallurgy. Section C. Mineral processing & extractive metallurgy, 103, 1994, pp. 30000188-30000192
Citations number
8
Categorie Soggetti
Metallurgy & Mining",Mineralogy
Journal title
Transactions - Institution of Mining and Metallurgy. Section C. Mineral processing & extractive metallurgy → ACNP
ISSN journal
03719553
Volume
103
Year of publication
1994
Pages
30000188 - 30000192
Database
ISI
SICI code
0371-9553(1994)103:<30000188:SWBCF>2.0.ZU;2-K
Abstract
Crossflow filtration of 22 and 35 wt% finely ground magnesia in suspen sion gave permeate flux rates in excess of 100 1 m-2 h-1 at filtration pressures of a fraction of 1 bar. Nitrate ions were used as a tracer to monitor the dilution of a solute during washing by crossflow filtra tion. The wash-water and filtrate rates were kept equal. The reduction in nitrate concentration during washing followed a perfectly mixed st irred-tank model of the process. Washing by cross-flow filtration is s hown to compare favourably with alternative wash strategies when proce ssing finely ground or poorly settling materials.