AGITAIR Flotation Machine
Scientific separation and recovery of the values in strategic metals is AGITAIR’s flotation machines’ vital contribution to metal production worldwide. By improving results and lowering costs, it has become a factor in conservation and profit building that leading metallurgists have recognized. These are well authenticated facts demonstrated daily in hundreds of mills-large and small-throughout America and […]
Denver “Sub-A” Flotation Machine
No application is too large, too difficult, or too complex for this Denver “Sub-A” flotation Machine. Now ONE Denver “Sub-A” will handle the pulp from several large grinding circuits, thus simplifying the flotation operation. This Denver “Sub-A” will handle 3,000 tons of dry ore at 40% solids down to 1,000 tons at 15% solids. The […]
Ball Mill Circulating Load Formula
Calculating a grinding circuit’s circulating loads based on Screen Analysis of its slurries. Compared to %Solids or Density based Circulating load equations, a more precise method of determining grinding circuit tonnages uses the screen size distributions of the pulps instead of the dilution ratios. Pulp samples collected around the ball mill or rod mill and hydrocyclones, screen or […]
Antique Rock Crushers
Primary stone: Antique Rock Crushers AND rock breaking machines – if we may so designate those machines which are employed to reduce large masses of rock to sizes such as can be further dealt with by other machines – may be divided into two headings, i.e., (a) those which work largely used in those portions […]
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Gravity Recoverable Gold (GRG) Test
The GRG test is used to determine the theoretical maximum amount of gold that can be recovered from a sample. The testing scheme consists of three sequential liberation and recovery stages , the progressive size reduction allowing for the determination of the precious metal recovery as liberated without over-grinding and smearing coarse precious metal particles. […]
Metallurgical Risk Takers
Mineral Processing Equations EQ
A Metallurgist or more correctly a Mineral Processing Engineer will often need to use these “common” Formulas & Equations for Process evaluation and calculations: Circulating load based on pulp density *** Circulating load based on screen analysis *** Flotation Cell & Conditioner Capacities *** Two Product Formula *** Three Product (bimetallic) Formula (Part 1) ***needs verify Three Product (bimetallic) Formula (Part […]
Copper Flotation Recovery Rates of Oxidized Ores
A crude display of how oxide content (copper) affects the overall recovery of any given ores. Below are flotation recovery responses of 5 different ores from North and South America. In all cases, the recovery VS %Oxide relationship is obvious. Samples vary from 0.4% to 1.6% total copper. The heavy oxide chart (4th one down) […]
Table of Bond Abrasion Index for Varied Minerals-Materials
The Bond Abrasion Test determines the Abrasion Index, which is used to determine steel media and liner wear in crushers, rod mills, and ball mills. Bond developed the following correlations based on the wear rate in pounds of metal wear/kWh of energy used in the comminution process. Determining rock abrasivity in the laboratory ref