莫桑比克某滨海锆钛砂矿工艺矿物学研究

Study on Process Mineralogy of a Coastal Zirconium-Titanium Placer in Mozambique

为了推动莫桑比克某滨海锆钛砂矿工业试验,对其进行了化学组成、粒度组成、有价矿物选矿工艺特性等工艺矿物学研究。研究结果表明:该矿砂中的有价矿物种类较多,主要有钛铁矿、锆石、金红石和含铁金红石、独居石等,由于有价矿物种类多,物理性质复杂,精选分离具有一定的难度;矿砂中的砂粒粒度主要在0.10~0.50 mm,有价矿物的粒度主要在-0.30 mm,呈细粒分布,具有粒度大小均匀,粒度范围较窄的特点;矿砂中有价矿物的天然解离性较好,钛铁矿、白钛石、金红石、锆石、独居石等目的矿物基本呈单体颗粒,不磨矿即可分选。

In order to promote the industrial test of a coastal zircon-titanium placer in Mozambique,the process mineralogy of chemical composition,particle size composition and beneficiation process charac⁃teristics of valuable minerals were studied.The results show that there are many kinds of valuable minerals in the ore sand,mainly includ ilmenite,zircon,rutile,iron-bearing rutile and monazite.Due to the vari⁃ety of valuable minerals and complex physical properties,it is difficult to separate them.The particle size of sand in the ore sand is mainly 0.10~0.50 mm,and the particle size of valuable minerals is mainly-0.30 mm,which is finely distributed,with uniform particle size and narrow particle size range.The valuable minerals in the ore sand have good natural dissociation,and the target minerals such as ilmenite,white ti⁃tanium,rutile,zircon,and monazite are basically single particles,which can be separated without grinding.