Flowsheets & Flowcharts

Sub-A Flotation Cells

Flotation Machine Invention

The Sub-A Flotation cells technology has been around for a long time since the Denver Equipment Company first developed it in 1968 after inventing the flotation machine of 1940 and changed the mineral processing industry. The SUB-A float machines used in the mineral, chemical, environmental, and industrial applications requiring the efficient dispersion of fine air or gas bubbles in slurries or … Read more

Processing Gold by Cyanidation Leaching

Ways to Process Gold

Processing Heap Leachable Gold Ore by Cyanidation Oxide ore (low grades) will be unloaded on the heap leach PAD. Lime must be added during the discharge in order to control pH.  Harvesting must be performed after the ore discharge is completed in order to avoid compaction caused by the trucks during the leach cell construction. After … Read more

Copper Mining & Extraction Process Flow Chart

Copper Mining AND Extraction Process Flow Chart

This flowchart made of machinery icons explains or expresses in simple but clear terms the step of the Copper Mining and Copper Extraction Process.  Starting from either open-pit or underground mining and using a different relevant treatment method for oxide or sulphide copper mineral (ore). Having a quick look now at how porphyry ores are treated and … Read more

SO2 Manufacturing Process – Sulfur Burning Plant

Sulfur Melter

The SO2 Manufacturing Process is “simple”, all you need is a sulfur burning plant. The flowsheet represent what you need for a sulfur burning system to produce SO2.  The manufacturing of 1 metric tonne per day of SO2 requires a sulfur-burning SO2 plant capable of smoking-up around 46 lb/hr (21 kg/hr) of sulfur to produce 92 lb/hr (42 … Read more

Merrill Crowe Flowsheet

merrill crowe flowsheet

Here is a common and classic merrill crowe process flowsheet with a simple zinc precipitation chemistry. Some of the flows in this design: Too much dilution water is used Zinc dust is added after the pump No mechanical seal is present on the pump to prevent O2 entry.   Learn more about the Merrill Crowe Flowsheet.  

Processing Pregnant Solution from Gold Leaching via Merrill Crowe

Pregnant Solution

In processing gold, once it is completely dissolved the solution that is formed by that dissolved gold is called the ‘PREG’ or short for PREGNANT SOLUTION. In other words solution that is full of gold and is accordingly yellow in shade/colour. The solids are now considered the waste and the liquid is the concentrate. To … Read more

Operating a Grinding Circuit -Understand Your Flowsheet

Operating a Grinding Circuit

The next thing that I would like to discuss is the operation of the circuit as a unit. The CIRCUIT is the common name obtained from the path that the ore takes as it progresses through any particular process. In this case grinding. I won’t deal with start-up procedure as it will change from mine … Read more