A N T I M O N Y : ITS HISTORY, CHEMISTRY, MINERALOGY ...

THE METALLURGY OF ANTIMONY. 85
(2) If the ore contains gold or silver, the latter is generally found
in the residues after volatilisation.
(3) This method makes it possible to treat low-grade ores, e.g.
7 per cent, to 20 per cent., with profit.
FIG. 21.—Section A B. Scale=
(4) With different devices for condensation, the loss of antimony
is practically nil.
(5) The economising of fuel.
(6) The trioxide, thus condensed, can be reduced to metallic antimony,
or it can be used for other industrial purposes—for instance, to
make paints.
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FIG. 22.—Perspective. Scale=5^-
From these we might be led to believe that this method forms the
proper line of development of the metallurgy of antimony in the
future, judging from the most favourable results that have already
been attained in France, in which country this method has reached
its highest perfection.
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