CAJ | 학술논문

钛矿石的主要矿物有金红石(TiO_2),其次钛铁矿(FeO·TiO_2)、榍石(CaO·TiO_2·SiO_2)和钛磁铁矿(FeTiO_3·nFe_2O_3).样品经碱熔融,过氧化氢比色测定总钛;利用电感耦合等离子体质谱法测定,氟化氢铵和盐酸溶解钛铁矿、钛磁铁矿、榍石和硅酸盐中的钛;湿法磁选、盐酸溶解钛磁铁矿中的钛;磁选后的残渣经800℃灼烧,氟化氢铵和盐酸溶解榍石和硅酸盐中的钛.方法对12个钛矿石样品进行了4种钛矿物物相分析,结果与实际地质成矿组分符合.
태광석적주요광물유금홍석(TiO_2),기차태철광(FeO·TiO_2)、설석(CaO·TiO_2·SiO_2)화태자철광(FeTiO_3·nFe_2O_3).양품경감용융,과양화경비색측정총태;이용전감우합등리자체질보법측정,불화경안화염산용해태철광、태자철광、설석화규산염중적태;습법자선、염산용해태자철광중적태;자선후적잔사경800℃작소,불화경안화염산용해설석화규산염중적태.방법대12개태광석양품진행료4충태광물물상분석,결과여실제지질성광조분부합.
The main titanium minerals include rutile (TiO_2), ilmenite (FeO·TiO_2), sphene (CaO·TiO_2·SiO_2) and titanomagnetite (FeTiO_3 ·nFe_2O_3). The methods used for rapid phase analysis of titanium minerals were introduced in this paper. The total titanium in the samples was determined by hydrogen peroxide colorimetry after sample decomposition with alkali fusion. And titanium in the mineral phases was determined by inductively coupled plasma-mass spectrometry (ICP-MS) coupled with 3 sample decomposition methods: (1) NH_4HF_2-HCl digestion for ilmenite, sphene, titanomagnetite and silicate phases, (2) wet magnetic separation-HCl digestion for ilmenite phases, (3) NH_4HF_2-HCl digestion of magnetic residue after roasting at 800℃ for sphene and silicate phases. The method has been applied to the analysis of four titanium mineral phases in 12 titanium ores with satisfactory results.