▎ 摘　　要

NOVELTY - Producing nanometer scale particles involves adding to media mill feed substrate suspension, where feed substrate suspension comprises liquid carrier medium and feed substrate particles, adding to feed substrate suspension in media mill electrosteric dispersant, where electrosteric dispersant comprises polyelectrolyte. The media mill is operated for period of time to comminute feed substrate particles, formed nanometer scale particles having (D90) particle size of less than about one micron, and recirculated for further grinding nanometer scale particles from media mill. USE - Method for producing nanometer scale particles used in media mill (claimed). ADVANTAGE - The method enables to have simple, cost-effective and eco-friendly manner operation with reduced surface area and adsorption of the dispersants on the surface of the media mill. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a media mill apparatus, which is configured for producing nanometer scale particles comprising milling chamber, agitator extending into milling chamber, milling media set within milling chamber, feed substrate suspension comprising liquid carrier medium and feed substrate particles, and set within milling chamber and interspersed with milling media, electrosteric dispersant comprising polyelectrolyte mixed within feed substrate suspension, where agitator is configured to apply mechanical work to milling media for period of time, causing milling media to comminute feed substrate particles to form nanometer scale particles having (D90) particle size of less than about one micron.