Flocculant Mixing System & Dosage Strength Dilution
Increase Spiral Circuits Efficiency & Recovery
The reasons spirals have become so popular are fairly simple. Spirals are low cost and effective. The new lightweight molded and coated fiberglass units mean low added floor weight which minimizes required support steel. Incorporating multiple starts greatly reduces the required floor space so that more tons per hour can be processed in less building […]
Water Only Cyclone
A hydrocyclone utilizes centrifugal and drag forces to separate materials based on differences in physical properties such as size, density, and shape. For a particle system that contains a mixture of two different-density materials, the separation between two components can be achieved by concentrating the mixture into dense and light fractions. In classifying hydrocyclone separations, […]
Heavy Mineral Processing
Heavy mineral process circuits combine a number of process machinery used in different steps of desliming, classification, separation, beneficiation, enrichment, and dewatering of the desired products. The right choice of equipment has an impact on the technical and economical feasibility of today’s and future projects. Not only the capital investment and operational costs but also […]
How to Improve Ball Mill Grinding
Functional performance analysis of ball milling has been described previously by Mclvor. “Coarse” versus “fine” or product particle cut-off size is first selected, usually equal to some benchmark passing size of the circuit product (e.g., 80%). The function of the grinding circuit is to generate new product size material (or “fines”) from “coarse” particles in […]
Reduce Copper Loading on Carbon during Gold Adsorption
Copper mineralogy contributes a significant load of metals to the carbon adsorption circuit. Copper as [Cu(CN)2-] impedes adsorption of [Au(CN)2-]. If in high relative concentration, [Cu(CN)2-] loads faster than [Au(CN)2 ]; occluding adsorption space otherwise occupied by [Au(CN)2], Copper as [Cu(CN)3²-] and/or [Cu(CN)4³-] is weakly adsorbed onto activated carbon. Conversion of copper to the higher coordination […]
Reduce Kaolin Clay Viscosity
Here, the effects of different dispersion methods on improving the rheology of kaolin slurries are studied. The efficacy of desliming the kaolin slurry on reducing the viscosity of the kaolin crude is also investigated and the results are presented. Finally, the mechanism for the improvements in viscosity with the use of these dispersion methods is […]
Remove Mercury during Gold Leaching
The gold ores that are currently being processed contain mercury which is not only hazardous to the environment, but also causes serious occupational health and economic problems during gold processing. Some of the mercury present in the ore is dissolved during cyanidation of gold. As the separation of mercury cyanide from gold cyanide is difficult, […]
Temperature Affects Copper and Cyanide Adsorption
Different parts of the world in which mineral separation by flotation is practiced experience vastly different natural temperatures, and in some districts there is a big difference between summer and winter temperatures. It will be shown in this paper that the temperature is of considerable importance where it is desired to separate pyrite or arsenopyrite […]
Mill Tailings Sampling Method
Our approach is to let the variability in the samples dictate how many samples should be collected and analyzed, and then to quantify and defend the results by means of standard statistical methods. This approach is illustrated in Figures 1 through 4, in which a distribution of acid-base accounting (ABA) values is shown for increasing […]