 | American Institute of Mining Engineers - 1885 - 918 pages
...chloride, and, subsequently, with cuprous hyposulphite, — this solvent is called the extra-solution, — an additional amount of silver is extracted which would have been lost in the tailings by working according to the old method alone. This process can also be introduced with profit to extract... | |
 | John Arthur Phillips - Metallurgy - 1887 - 890 pages
...ore is first washed by a solution of sodium hyposulphite to remove chloride of silver, and afterwards with cuprous hyposulphite, the solution of the latter..."extra solution," an additional amount of silver is obtained, which would have been lost in the tailings if treated by sodium hyposulphite alone. The process... | |
 | Carl August Stetefeldt - Silver - 1888 - 290 pages
...chloride, and, subsequently, with cuprous hyposulphite, — this solvent is called the extra-solution, — an additional amount of silver is extracted which would have been lost in the tailings by working according to the old method alone. Or if the roasted ore contains caustic lime, and is treated... | |
 | Geology - 1888 - 1006 pages
...subsequently, with a solution containing cuprous hyposulphite — this solvent is called the extra-solution — an additional amount of silver is extracted which would have been lost in the tailings by working according to the old method alone. Or, if the roasted ore contains caustic lime,, and is... | |
 | Mineral industries - 1893 - 824 pages
...to dissolve the silver chloride, and subsequently with cuprous hyposulphite (this solvent is called the extra solution) an additional amount of silver...extracted, which would have been lost in the tailings, by working according to the old method alone. Or, if the roasted ore contain caustic lime and be treated... | |
 | Carl A. Stetefeldt - Silver - 1895 - 246 pages
...a double-salt of sodium and cuprous hyposulphite,—this solvent is called the extra-solution—an additional amount of silver is extracted which would have been lost in the tailings by working according to tbe old method alone. Russell also discovered that lead can be completely separated... | |
 | Metallurgy - 1902 - 644 pages
...Russell solution composed of sodium-copper thiosulphate, or cupreous hyposulphate, an additional quantity of silver is extracted, which would have been lost in the tailings by the old method. 47. The Precipitation of Lead. — The carbonate of lead, PbCO,, is insoluble in... | |
 | International Correspondence Schools - Nonferrous metals - 1902 - 642 pages
...solution composed of sodium-copper ti4iosulphate, or cupreous hyposulphate, an additional quantity of silver is extracted, which would have been lost in the tailings by the old method. 47. The Precipitation of Ijead. — The carbonate of lead, PbCO,, is insoluble in... | |
 | Agriculture - 1902 - 636 pages
...Russell solution composed of sodium-copper thiosulphate, or cupreous hyposulplmte, an additional quantity of silver is extracted, which would have been lost in the tailings by the old method. 47. The Precipitation of Lead. — The carbonate of lead, PbCOt, is insoluble in... | |
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Hence, if a charge of ore is first lixiviated with ordinary sodium hyposulphite solution to dissolve the silver chloride, and, subsequently, with cuprous hyposulphite, — this solvent is called the extra-solution, — an additional amount of silver is... 