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Conference Proceedings

Fourth Mill Operators' Conference, Burnie Tas, March 1991

Conference Proceedings

Fourth Mill Operators' Conference, Burnie Tas, March 1991

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Ambient Dust in Mineral Sands Dry Plants

The dry processing of mineral sands concentrates can result in the generation of significant amounts of airborne dust. The radioactive component of this dust has implications within the context of work environment health codes. The last four years have seen considerable investment in dry plant equipment enclosure and dust extraction systems, with resultant reductions in plant ambient dust levels. Simultaneously, an industry wide program was started to examine the origin, nature, mineralogy and radioactivity of the airborne dust. The major findings of this study have been:_x000D_
confirmation that monazite was the only significant source of dust radioactivity._x000D_
recognition of two sources of dust: - agglomerates of finely divided ilmenite-rutile alteration products, which are formed by the removal of surface coatings and particles. - abraded mineral fragments, which reflect the mineralogy of the parent particles.
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  • Published: 1991
  • PDF Size: 0.516 Mb.
  • Unique ID: P199101005

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