Gold Smelting at Home
In smelting and melting for pure gold, that is, gold of 24-kt. value is very much too soft for jewelry purposes and it is therefore always alloyed with other metals to increase its hardness and resistance to wear. For the same reason pure silver is seldom used alone but is alloyed with copper, the standard […]
Mass Balancing Extended to Machine Learning
The methodology MIDAS Tech International has been developing has migrated from mass balancing to information theory to machine learning. It appears these methods are the only ones available that allow unit processes to be modelled in detail; entirely from the data. This is ideal for a simulation system that can be used for both data-driven […]
Gold & Copper Bioleaching
Bacterial Leaching of Copper Ores Several types of bacteria capable of living in an acid environment have been isolated from copper mine waters. The foremost of these are of the genus Thiobacillus (T.). Thiobacillus bacteria are acidophilic aerobic chemolithotrophs which grow most rapidly at a pH in the range of 2-3. T. ferrooxidans derive their […]
1899 Geology Fieldbook
There are 4 pages to this 1899 Geology Fieldbook. Be sure to flip and read them all. Geological Excursions
Groundwater Flow Model
predictions of a groundwater flow model
Difference Between SEDEX and VMS Deposits
What are the Differences Between SEDEX and VMS Deposits and how the VMS and SEDEX deposits fit into the overall scheme of things. You remember that nature concentrates the metals by a process of partially melting crustal rocks at depth, letting the metal rise through the crust and cool, dumping the valueless material such as feldspar and […]
Starter Guide to Gold Prospecting and Mining
While venturing into a gold mine is fun and exciting, it can also be intimidating and dangerous as all mines are underneath the earth’s surface in some shape or form. Working in a gold mine is no easy job as it will take extensive amounts of time and effort to find any pieces of gold. […]
Mineralogical Liberation in Mineral Processing
When looking at your concentrate samples under the microscope in a size by size base, and want to evaluate your liberation % you can use this table.
Circulating Load Calculation Formula
Here is a formula that allows you to calculate the circulating load ratio around a ball mill and hydrocylone as part of a grinding circuit. For example your ball mill is in closed circuit with a set of cyclones. The grinding mill receives crushed ore feed. The pulp densities around your cyclone are sampled and known […]
Activated Carbon Column
Here is a set carbon column that are obviously designed for the carbon in column process 4′ dia. X 11.5′ tall Columns 6′ dia. X 2′ deep upper tanks with 8″ dia. drain Columns offset by 2′ Platforms with railings and connecting stairs