TABLE 11. he Gold. Sampling. Original Report.. Resamplen. Fineness. Fineness. 999.839; 999.7 999.7 999.7 999.7 999.7 999.7 999.7 999.6 999.6 999.5 999.5 Our standard gold contains 900 parts of gold and 100 of copper. When made from pure metals it does not segregate. Four melts of standard gold were carefully sampled
Sampling.Many of the ores we run would come under the head of rich spotty ores, as the Colorado phrase is. To crush and cut down such an ore, according to best Colorado rules of sampling, would require breaking the whole batch of from 500 to 1,000 lb. down to 10 or even 30 mesh. This would ruin our gold stamp mill run.
coal mill fineness sampling. determination of coal mill fineness coal mill fineness sampling probe availability in each case we installed a probe grid in the economizer outlet duct for Get Price analysis of coal mill fineness analysis of coal mill fineness coal crusher ball mill rpm calculation on size gulin supply mining and construction equipment for mineral
Here is an Ancient Gold Ore Milling Process used in China in the 1800s. We might use it again after WW3. At the time, 1890, the Author said There is, of course, nothing for us to learn from this imperfect and rudimentary gold extraction process described here, which is doubtless destined to disappear ere long, before the progress of scientific mining, now making itself slowly felt ...
An ideal sampling mill, where the situation and nature of the service will permit this form of construction, is shown in Fig. 15. This plant is entirely automatic, and when the ore is received in hopper bottom cars no manual handling is required at any stage, while the sample is automatically delivered into a. locked steel safe.