Capturing Agent Overview
A collector is a flotation agent used to enhance the hydrophobicity of mineral surfaces, making it easier for floating ore particles to adhere to bubbles. In nature, while coal, graphite, sulfur, talc, and molybdenite mineral particles are naturally hydrophobic and floatable, most minerals are hydrophilic. However, for hydrophilic metallic minerals, additives can alter the hydrophobicity of mineral particles, making them floatable. This type of agent is commonly referred to as a collector.

Catch Agent Classification
 Reagents for捕收 vary, and can be categorized by their ionic nature into anionic, cationic, amphoteric, and non-ionic types; and by their application scope into sulfide mineral捕收 agents, oxide mineral捕收 agents, non-polar mineral捕收 agents, and sedimentary metal捕收 agents.
Common sulfide ore collectors include pyrite, pyrite derivatives, black drug, white drug, benzothiazole thiol, benzimidazole thiol, benzofuran thiol, etc. Esters of alkyl dithiocarbamates and thiocyanates are also commonly used collectors for sulfide minerals. They are also the preferred collectors for flotation of gold-bearing polymetallic sulfide ores, often used simultaneously with pyrite derivatives.
Oxide ore collectors primarily include fatty acids and their sodium soaps, alkyl sulfonates, alkyl sulfates, phosphates, arsenic esters, fatty amines and their salts, rosin amines, quaternary ammonium salts, diamines and polyamines, amphoteric surfactants, and more.
Anionic polar捕收 agents do not dissociate at the molecular level, such as sulfur esters, while non-polar捕收 agents are hydrocarbons (neutral oils), like kerosene, diesel, and others.