Activators

Activators are specifically added to enhance flotation performance, usually by modifying the surface of the particle in some way so as to make it more amenable to interaction with the collector. They may however have unexpected effects, for example, by com-plexing with other ions in solution and rendering particles less floatable. Copper sulfate, for example, is a well-known activator. Under certain circumstances, in sulfide flotation, the copper may ion-exchange with surface ions, creating a readily floatable particle but in different pulp conditions may complex as a hydroxy species and depress the particles. Such effects may be considered synergistic but fall outside the scope of this article. Another commonly used activator is sodium sulfide or bisulfide which is used as a sulfidizing reagent for tarnished or oxidized ores.

Solar Panel Basics

Solar Panel Basics

Global warming is a huge problem which will significantly affect every country in the world. Many people all over the world are trying to do whatever they can to help combat the effects of global warming. One of the ways that people can fight global warming is to reduce their dependence on non-renewable energy sources like oil and petroleum based products.

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