Gold Assaying a Practical Handbook Giving the Modus Operandi for the Accurate
Gold Assaying a Practical Handbook Giving the Modus Operandi for the Accurate
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In our eReader you can find the full English version of the book. Read Gold Assaying a Practical Handbook Giving the Modus Operandi for the Accurate 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 Gold Assaying a Practical Handbook Giving the Modus Operandi for the Accurate
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48), and the button of gold weighed.
Amalgamation Synopsis of Process. By amalga- mation is meant the combination of mercury or quicksilver with the gold and silver contained in the ore. There are various machines in use on a large scale for the purpose, the principal, however, being the stamp battery. Here the ore is ground to powder, wet, and the pulp passes over inclined copper plates amalgamated with mercury, in which the gold is absorbed, and from which it is recovered by first scraping of...f the gold amalgam, squeezing out excess of mercury through chamois leather. The resulting gold amalgam which contains from 30 to 40 per cent, of gold is retorted, the mercury being distilled and the gold left in a porous mass, this being eventually smelted with fluxes in plumbago crucibles and cast into bars.
Other methods of amalgamation consist in grinding the ore wet in contact with mercury in grinding-pans, of which there is a great variety.
Amalgamation Assay. When it is necessary to ascer- tain the amount of gold that can be extracted by mercury on a small scale, the writer has found that the apparatus shown in Fig.
What to read after Gold Assaying a Practical Handbook Giving the Modus Operandi for the Accurate?
You can find similar books in the "Read Also" column, or choose other free books by H Joshua Phillips to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
48), and the button of gold weighed.
Amalgamation Synopsis of Process. By amalga- mation is meant the combination of mercury or quicksilver with the gold and silver contained in the ore. There are various machines in use on a large scale for the purpose, the principal, however, being the stamp battery. Here the ore is ground to powder, wet, and the pulp passes over inclined copper plates amalgamated with mercury, in which the gold is absorbed, and from which it is recovered by first scraping of...f the gold amalgam, squeezing out excess of mercury through chamois leather. The resulting gold amalgam which contains from 30 to 40 per cent, of gold is retorted, the mercury being distilled and the gold left in a porous mass, this being eventually smelted with fluxes in plumbago crucibles and cast into bars.
Other methods of amalgamation consist in grinding the ore wet in contact with mercury in grinding-pans, of which there is a great variety.
Amalgamation Assay. When it is necessary to ascer- tain the amount of gold that can be extracted by mercury on a small scale, the writer has found that the apparatus shown in Fig.
What to read after Gold Assaying a Practical Handbook Giving the Modus Operandi for the Accurate?
You can find similar books in the "Read Also" column, or choose other free books by H Joshua Phillips to read onlineMoreLess
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