This is done automatically and in a very
rapid manner. It is stated that this method of treatment is applicable
to all ores, the most refractory being readily reducible by its means.
The advantages claimed for this process are: simplicity of the
apparatus, it being practically automatic; that every particle of the
ore is separately acted upon in a rapid and efficient manner; that the
apparatus is adaptable to existing milling plants; and that there is
an absence of elaborate and expensive plant and of the refinements of
electrical or chemical science. These advantages imply that the work
can be done so economically as to commend the new process to the
favorable consideration of all who are interested in mines or mining
property.--_Iron._
* * * * *
REFINING SILVER BULLION.
A number of years ago the author devised a method for refining silver
bullion by sulphuric acid, in which iron was substituted for copper as
precipitant of silver, the principal feature being the separation of
pure crystals of silver sulphate. A full description of this process
may be found in Percy's Metallurgy, "Silver and Gold," page 479. The
process has been extensively worked in San Francisco and in Germany in
refining bullion to the amount of more than a hundred million dollars'
worth of silver.
Pages:
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129