Flotation is based on the difference in floatability between minerals. However, in production practice, the natural floatability of minerals and gangue minerals is rarely met, so it is often necessary to add during flotation. Various flotation agents are used to achieve separation between minerals. So what are the types of medicines that are added to the flotation machine?

According to the different effects of the medicament on the flotation, the type of the medicament for the flotation machine can be divided into a foaming agent, a regulator and a collector.

The function of the foaming agent is to prevent the merger between the bubbles, reduce the upper body speed of the bubble, affect the size and dispersion state of the bubble, and increase the mechanical strength of the bubble. Common foaming agents are: hydroxy compounds (pine oil, MIBC, mixed fatty alcohol, cresol, water distillate, etc.), ethers and ether alcohols (polyethylene glycol monoether, triethyl butane, etc.) , pyridines (such as heavy pyridine, etc.), ketones (such as camphor oil, etc.), of which the No. 2 oil in the pine oil is the most widely used.

Conditioning agents include pH adjusting agents, inhibitors, activators, flocculants, and dispersing agents. An agent for adjusting the pH of the slurry such that the subsequent agent performs a better function is called a pH adjuster. The types of pH adjusters are acids (such as sulfuric acid, etc.) and alkalis (such as lime, sodium carbonate, etc.). Any agent that can destroy or weaken the adsorption of mineral particles on the collector and enhance the hydrophilicity of the mineral surface is called an inhibitor.The types of inhibitors are inorganic substances (such as sulfurous acid, lime, potassium cyanate, potassium dichromate, sodium silicate,Sulfur dioxide, etc., organic substances (such as baking gum, tannin, sodium lignosulfonate, starch, dextrin, animal glue, carboxymethyl cellulose, etc.). Any agent that enhances the adsorption of mineral particles on the collector and enhances the hydrophobicity of the mineral surface is called an activator. The activator is an acid (such as sulfuric acid, etc.), a base (such as sodium carbonate, etc.), and a salt (such as copper sulfate, sodium sulfate, etc.). An agent that promotes the combination of fine-grained ore in a slurry into a larger agglomerate is called a flocculant. Flocculant is a polymer flocculant, natural polymer

Compounds, inorganic coagulants, solid mixtures, and the like. The agent that promotes the dispersion of fine particles in the slurry is called a dispersant, and the dispersant is mainly a silicate.
The role of the collector is to make the hydrophobic mineral easier to bind to the bubbles. Collectors are non-ionic (such as kerosene, diesel, xanthate, etc.), anionic (such as xanthate, black medicine, oleic acid, sodium hydrosulfate, etc.), cationic (such as mixed amines, lauric acid, etc.) . Xanthate and black medicine are the most widely used collectors in production time. In addition, in order to enhance the collection effect, mixed use is often carried out in production practice.

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