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Evil
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does anyone here has any idea what is froth flotation(in extraction pf metals) and negative energy of activation( as in chemical energetics)?
thanks for any input.
thanks for any input.
Froth flotation is a method used to separate particles based on their surface properties. It involves adding certain chemicals to a mixture, which causes the particles to adhere to bubbles and rise to the surface, forming a froth layer. The froth can then be collected and the particles can be separated from it.
In froth flotation, a mixture is first conditioned with chemicals called “collectors” and “frothers”. The collectors attach to the surface of the desired particles, while the frothers create a stable foam. Air bubbles are then introduced into the mixture, causing the particles to adhere to the bubbles and rise to the surface. The froth layer can then be skimmed off and the particles can be separated from it.
The negative energy of activation in froth flotation is the minimum amount of energy required to initiate the separation process. In other words, it is the minimum energy needed to break the bonds between the particles and the liquid, allowing the particles to adhere to the air bubbles and form the froth layer.
Several factors can affect the efficiency of froth flotation, including the type and concentration of collectors and frothers used, the size and shape of the particles, the pH of the mixture, and the speed and intensity of the agitation. The presence of impurities, temperature, and the type of equipment used can also play a role.
Froth flotation is commonly used in the mining industry to separate valuable minerals from ores. It is also used in the paper and pulp industry to remove ink and other contaminants from recycled paper. Additionally, froth flotation has applications in wastewater treatment, oil and gas production, and even in the food and beverage industry for clarification and separation purposes.