A N T I M O N Y : ITS HISTORY, CHEMISTRY, MINERALOGY ...
A N T I M O N Y : ITS HISTORY, CHEMISTRY, MINERALOGY ...
A N T I M O N Y : ITS HISTORY, CHEMISTRY, MINERALOGY ...
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THE METALLURGY OF ANTIMONY.<br />
material; «i, the masunry wall, provided with draught-holes. The pot<br />
is 12 inches in height, 8 inches in diameter, and holds 22 lbs.<br />
At Malbo.sc (Ardcche), in France, the charge is 33 lbs. per pot<br />
The receiver is emptied every forty hours, after four charges. During<br />
this period, twenty pots produce 10£ r > lbs. of the sulphide, with consumption<br />
of 3330 lbs. of coal and 448 lbs. of brushwood.<br />
ft. Intermittent Liquation in Pots in Furnace.—Pots in a furnace give<br />
greater economy of fuel and render the working of poorer ores easier.<br />
The pots are placed on each side of the fire-grate in the furnace, or are<br />
arranged in a circle around it. The receivers are either placed directly<br />
below the bed of the furnace—in this case they are surrounded by<br />
sand to prevent their coining into contact with the flame—or they<br />
e, Heating ciiamber.<br />
d, The grate.<br />
/, Clay pipes.<br />
FIG. 5.<br />
b, Receiving vessels.<br />
a, Pots.<br />
cy Openings in the roof.<br />
are placed entirely outside and are connected by clay pipes to the<br />
bottom of the pots. The latter arrangement is more satisfactory, as<br />
it does not necessitate the interruption of the working of the furnace<br />
when the receivers have to be emptied. A ^ood example of the<br />
former can be seen from the works at La Lincoule in France. This is<br />
shown in fig. 4.<br />
It can also be seen at Mlllesehau in Bohemia and at Banya in<br />
Hungary.<br />
Each vessel carries 20 kgs. 1500 kjrs. of 50 per cent, sulphide ore<br />
requires the consumption of 0*46 to 0"49 cb.m. of wood.