Specialized metallurgical processes – compositions for use therei – Processes – Free metal or alloy reductant contains magnesium
Patent
1993-11-12
1994-10-11
Andrews, Melvyn J.
Specialized metallurgical processes, compositions for use therei
Processes
Free metal or alloy reductant contains magnesium
95134, 423210, 210673, 210688, C22B 4300, B01D 5304
Patent
active
053543572
ABSTRACT:
Mercury is often removed as an impurity from process fluid streams by adsorption in fixed beds using any of several well-known adsorbents having the ability to selectively adsorb mercury. It is also common to reintroduce this sequestered mercury into the environment by means of the spent gas used to periodically regenerate the fixed beds. A solution to this problem is provided by the present invention in which the mercury is removed from the process stream using a large cyclically regenerated adsorption bed in combination with a non-regenerable secondary adsorption bed, the mercury content of the former being in part recovered as liquid mercury by passage through a condenser and in part transferred to the non-regenerated bed. Mercury leakage from the non-regenerable bed is recycled to the cyclically regenerated bed.
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Barrer et al., J. Chem. Soc (1967) pp. 19-25.
Holmes Ervine S.
Markovs John
Maurer Richard T.
Zarchy Andrew S.
Andrews Melvyn J.
McBride Thomas K.
Silverman Richard P.
Tolomei John G.
UOP
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