(1. 中南大學(xué) 資源加工與生物工程學(xué)院，長(zhǎng)沙 410083;
2. 中南大學(xué) 戰(zhàn)略含鈣礦物資源清潔高效利用湖南省重點(diǎn)實(shí)驗(yàn)室，長(zhǎng)沙 410083)
摘 要: 綜述了磨礦環(huán)境、磨礦介質(zhì)、外加機(jī)械力、磨機(jī)類(lèi)型和助磨劑等磨礦過(guò)程中的主要因素對(duì)硫化礦和氧化礦顆粒表面性質(zhì)、礦物浮選行為的影響及機(jī)制。結(jié)果發(fā)現(xiàn)：對(duì)于硫化礦，磨礦主要影響顆粒的晶體結(jié)構(gòu)和礦漿電化學(xué)性質(zhì)；對(duì)于氧化礦和硅酸鹽礦物，磨礦主要影響顆粒晶面暴露程度、反應(yīng)活性、形狀指數(shù)及粗糙度等，最終影響礦物的浮選行為。通過(guò)對(duì)磨礦過(guò)程中各種因素的優(yōu)化，獲得具有特定晶體結(jié)構(gòu)、形狀參數(shù)、特定晶面暴露的礦物顆粒產(chǎn)品，進(jìn)而實(shí)現(xiàn)對(duì)礦物浮選及分離行為的精細(xì)調(diào)控，是未來(lái)磨礦研究的重點(diǎn)。
關(guān)鍵字: 磨礦；表面性質(zhì)；晶面暴露；晶體結(jié)構(gòu)；浮選
（1. School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China;
2. Key Laboratory of Hunan Province for Clean and Efficient Utilization of Strategic Calcium-containing Mineral Resources, Central South University, Changsha 410083, China）
Abstract:The influencing mechanisms of grinding environment, grinding medium, mechanical force, mill types and grinding aids on surface properties and flotation behavior of sulfide and oxidized minerals were systematically reviewed. It was concluded that, for sulfide ores, grinding can mainly affect the crystal structure and pulp electrochemical properties of mineral particles. While for oxidized and silicate minerals, grinding dominantly influences the exposure degree of crystal surfaces, reactivity, shape index and roughness of mineral particles, and ultimately exerts influence on mineral flotation behavior. In the near future, the main researches should be concentrated on coordinated optimization of various factors in grinding process to produce mineral particles with specific crystal structure, shape index and crystal surface exposure which will lead to a precise control of mineral flotation behaviour and hence separation efficiency.
Key words: grinding; surface properties; exposed surfaces; crystal structure; flotation
