FIELD: chemistry.
SUBSTANCE: invention relates to methods of obtaining sorbents for catching gaseous fluorides: hydrogen fluoride, molybdenum, tungsten, rhenium, uranium, etc. hexafluorides. Method of sorbet production includes preparation of charge from fluorides of alkaline or alkali-earth metals and porephore, formation of granules, their drying at temperature 60-150°C and sintering at temperature 350-550°C, as porephore ammonium carbonate in amount 15÷50% of fluoride weight is used. Invention allows to reduce corrosive impact of charge components on equipment materials and eliminate of equipment blocking with ammonium fluoride.
EFFECT: obtaining cyclically stable granules which have acceptable specific surface and mechanical strength.
2 cl, 3 ex, 1 tbl
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Authors
Dates
2008-11-27—Published
2006-12-25—Filed