The Russell Process At Yedras Sinaloa Mexico Comparison With the Patera Or O

Cover The Russell Process At Yedras Sinaloa Mexico Comparison With the Patera Or O
The Russell Process At Yedras Sinaloa Mexico Comparison With the Patera Or O
Robert F Letts
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33 1. 45 1. 12 0. 84 12. 23 9. 75 6. 30 Ar'ges 1. 59 5. 10 3. 38 2. 57 12. 64 1. 13 9. 43 The value of the product from the treatment of old tailings at Yedras, by the Russell Process, averages about 25 per cent, in silver, or approximately 7, 000 ounces per ton.
12 SUMMARY.
Tables IV and XIV give the chemicals on both ore and tailings for the years 1888, 1889 and 1890, as follows: YEAR.
Total Chemicals Per Ton for Ore.
Total Chemicals Per Ton . For Tailings.
Ibs.
Ibs.
1888 1889 1890 17. 18 12.
... 26 9. 14 16. 24 12. 55 9. 33 The above Table illustrates a fact, which, I believe, has been observed wherever the Russell Process, has been used, viz. : . That the amount of chemicals consumed per ton is practically independent of the richness of the ore. For, in the above case, the amount of silver extracted from the ore per ton is four to six times the amount extract- ed from the tailings and yet the weight of chemicals used per ton is almost exactly the same.
The average amount and cost of chemicals per ton used in re- treating the old tailings at Yedras by the Russell Process, during the above three years, has been as follows: Hyposulphite 1.


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