Device and Method for the Thermal Treatment of Fluorine-Containing and Noble Metal-Containing Products
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United States of America Patent
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Issued Date -
Feb 27, 2014
app pub date -
Aug 16, 2013
filing date -
Aug 21, 2012
priority date (Note) -
Abandoned
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Abstract
The present invention relates to an ashing plant for enriching noble metals from fluorine-containing materials, comprising
- a thermal treatment chamber (1) having a refractory insulating lining on the inside of the chamber andan exhaust gas cleaning system,whereby the refractory insulating lining is resistant to hydrofluoric acid and the exhaust gas cleaning system comprises at least one thermal after-incineration chamber (2), at least one or more acid scrubber(s) (3, 4) and at least one alkaline scrubber (5).
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