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磷矿是磷肥工业的主要原料,从地质成因上可分三大类,即内生磷灰石矿床,变质磷灰岩矿床,沉积磷块岩矿床。由于矿床的成因不同,磷酸盐矿物的化学组份及物化性质亦不同。如磷酸盐矿物中P_2O_5理论含量、比重、晶胞参数、折光率、结晶程度和P_2O_5的枸溶率等亦不相同,反映在浮选工艺上,有些磷酸盐矿物易选,有些则难选。在化学加工上,有些磷酸盐矿物用酸易分解,有些则用
Phosphate rock phosphate fertilizer industry is the main raw material, from the geological causes can be divided into three categories, namely endogenous apatite deposits, metamorphic apatite deposits, sedimentary phosphate rock deposits. Due to the different genesis of the deposit, the chemical composition and physicochemical properties of phosphate minerals are also different. Such as phosphate mineral P_2O_5 theoretical content, specific gravity, unit cell parameters, refractive index, degree of crystallinity and P_2O_5 the rate of dissolution of citrus also reflected in the flotation process, some phosphate minerals easy to choose, while others are difficult to select. In chemical processing, some phosphate minerals easily decompose with acid, while others use