Manual of Assaying Gold Silver Copperand Lead Ores
Manual of Assaying Gold Silver Copperand Lead Ores
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In our eReader you can find the full English version of the book. Read Manual of Assaying Gold Silver Copperand Lead Ores Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Manual of Assaying Gold Silver Copperand Lead Ores
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If in small quanti- ty, none of these need influence the charge or manner of treatment. If in large quantity, making either a compound mineral, or a com- bination of various minerals, they may necessi- tate some variation in the mode of treatment.
Since, as stated, iron pyrites is found in rocks of every geological epoch, we may ex- pect to have every kind of gangue ; but, by remembering the rules already given, that acid and basic gangues are to have basic and acid fluxes, no trouble need be f...eared. Sil- ver, if present, will come down with the gold.
METHOD A.
Desulphurization by a preliminary roasting. For the ore without any gangue, or for GOLD AND SILVER ORES. 285 " concentrates, " mix i part (i A. T. , 30 grammes, 480 grains) with i part of silica.
Mix the above, or the ore alone, if it has a gangue, with its bulk of fine charcoal, and roast according to pages 259-264.
After roasting, add the other constituents, so that the total charge will be as follows : CHARGE.
A. T. Weights.
What to read after Manual of Assaying Gold Silver Copperand Lead Ores?
You can find similar books in the "Read Also" column, or choose other free books by Walter Lee Brown to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
If in small quanti- ty, none of these need influence the charge or manner of treatment. If in large quantity, making either a compound mineral, or a com- bination of various minerals, they may necessi- tate some variation in the mode of treatment.
Since, as stated, iron pyrites is found in rocks of every geological epoch, we may ex- pect to have every kind of gangue ; but, by remembering the rules already given, that acid and basic gangues are to have basic and acid fluxes, no trouble need be f...eared. Sil- ver, if present, will come down with the gold.
METHOD A.
Desulphurization by a preliminary roasting. For the ore without any gangue, or for GOLD AND SILVER ORES. 285 " concentrates, " mix i part (i A. T. , 30 grammes, 480 grains) with i part of silica.
Mix the above, or the ore alone, if it has a gangue, with its bulk of fine charcoal, and roast according to pages 259-264.
After roasting, add the other constituents, so that the total charge will be as follows : CHARGE.
A. T. Weights.
What to read after Manual of Assaying Gold Silver Copperand Lead Ores?
You can find similar books in the "Read Also" column, or choose other free books by Walter Lee Brown to read onlineMoreLess
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