Transactions . face exposed. Now in the method described in this paper only a thin cover-ing of acid slag is used and the surface exposed is small, since itdepends on the amount of slag displaced by the air blast. About 70% of the total loss is charged to volatilization, andfrom Plattners experiment with flue dust it would appear thatthis could be greatly reduced by the use of a dust chamber. R PINING OF SlLVEB BULLION* 591 No difficulty was experienced in refining the bullion , and since the loss is exceedingly low and the cost ofrefining small, it looks as though it might be made us


Transactions . face exposed. Now in the method described in this paper only a thin cover-ing of acid slag is used and the surface exposed is small, since itdepends on the amount of slag displaced by the air blast. About 70% of the total loss is charged to volatilization, andfrom Plattners experiment with flue dust it would appear thatthis could be greatly reduced by the use of a dust chamber. R PINING OF SlLVEB BULLION* 591 No difficulty was experienced in refining the bullion , and since the loss is exceedingly low and the cost ofrefining small, it looks as though it might be made use of com-mercially. Section No. 1 assays:— [ ! bullion j Sb. .. 1 As. .. Co and Ni not determined. Section No. 2 assays:— f blown \ As. 2 1 1 hr. 20 min. [ Sb. by diff. Section Xo. 3 assays:— f Refined bullion \ As [Sb Section No. 4 assays:— Bullion from As ore f Ag. . speissing . .. { As. [Sb. , by diff. y<i*. Bar Broken at 96r


Size: 1593px × 1569px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., book, bookcentury1800, booksubjectmineralindustries, bookyear1895