The collector is a flotation agent that changes the hydrophobicity of the mineral surface and makes floating mineral particles stick to the bubbles. The most important kind of flotation agent. It has two most basic properties: (1) can be selectively adsorbed on the surface of minerals; (2) can increase the degree of hydrophobicity of the mineral surface, making it easy to adhere to bubbles, thereby improving the floatability of minerals.
The vast majority of collectors are heteropolar organic compounds. For example, xanthates, carboxylic acids, fatty amines, etc. The molecular structure generally contains two groups: polar groups and non-polar groups, which have an important impact on the entire molecular flotation performance. The composition and structure of the polar group of the collector determine the chemical properties and Dissociative properties in water.
After dissociation of various collectors in water, the anchor atoms in polar groups are mainly -S-, -O- and -NH+3. Generally speaking, when the collector's solid atoms are the same as the non-metallic elements in the mineral, the collection effect can occur.
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