In order to investigate the wettability of compound wetting agent with amphoteric and anionic wetting agents for dust of sulfide ores,the wettability of monomer wetting agents,including cocamidopropyl betaine( CAB),dodecyl dimethyl betaine( BS- 12),sodium dodecyl benzene sulfonate( LAS),and sodium alcohol ether sulphate( AES) were studied by the experimental method of downward capillary seep. The contact angle of each monomer and ore samples were measured by the sessile drop method. The monomer experimental...