摘要
从药剂与矿物的轨道对称性匹配原理、共价配位和电价配位原理、空间匹配原理等方面,介绍了捕收剂和抑制剂分子与硫化矿和氧化矿在作用原理上的差异。轨道对称性匹配原则可以解释黑药、氰离子和石灰等对铅硫的选择性作用等现象,共价配位和电价配位是氧化矿和硫化矿与捕收剂作用差异的本质所在。以上原则都与药剂分子和金属离子的电子结构和性质相关,而空间匹配原理决定了药剂是否能接近矿物表面从而发生有效吸附。
This paper introduces the differences of action principles between collectors and depressants and sulfide and oxide minerals from the aspects of orbital symmetry matching principle,covalent coordination and electrovalence coordination principle,and space matching principle of reagents and minerals.The matching principle of orbital symmetry can explain the phenomena such as the selective action of dithiophosphate,cyanide ion and lime to lead and sulfur.Covalent coordination and electrovalent coordination are the essence of the difference between oxide ore and sulfide ore and collector.The above principles are related to the electronic structure and properties of reagent molecules and metal ions,and the principle of space matching determines whether the reagent can approach the mineral surface for effective adsorption.
作者
陈建华
李玉琼
CHEN Jianhua;LI Yuqiong(School of Resources,Environment and Materials,Guangxi University,Nanning 530004,China)
出处
《有色金属(选矿部分)》
2025年第2期33-48,共16页
Nonferrous Metals(Mineral Processing Section)
基金
国家自然科学基金资助项目(52374264)。
关键词
配位化学
浮选
矿物
药剂
coordination chemistry
flotation
minerals
reagents
作者简介
陈建华(1971-),男,四川西昌人,博士,教授,博士生导师,主要研究方向涉及矿物分离、界面化学、半导体光催化、流体力学、电化学等领域。
