论文部分内容阅读
锰矿石作物相分析时,对共存的三价锰矿物(如水锰矿)与四价锰矿物(如软锰矿)的分离与测定认为是较困难的,长沙矿冶研究所对此曾详为评述.分析共存的三价锰与四价锰国内一般采用分别称样测定“有效氧”及总锰量后加以计算,并需校正存在的亚铁.另一方法是以50毫升2 N硫酸,2克氟化钾及2毫升氢氟酸作为三氧化二锰的选择性溶剂,在滤液中测三价锰,在残渣中测定二氧化锰,但软锰矿在此溶液中溶解度仍然显著,某些硅酸锰化合物亦溶解,因此不宜将锰氧化至七价后再行测定.新余钢厂曾对渡边四郎所述方
Manganese ore crop phase analysis, the coexistence of trivalent manganese minerals (such as water manganese) and tetravalent manganese minerals (such as pyrolusite) separation and determination is more difficult, Changsha Institute of Mining and Metallurgy has been reviewed in detail. Analysis of Coexisting Trivalent Manganese and Tetravalent Manganese Domestic commonly called “effective oxygen” and total manganese content are calculated after calculation, and the need to correct the existence of ferrous.Other method is 50 ml of 2 N sulfuric acid, 2 g Potassium fluoride and 2 ml of hydrofluoric acid as a selective solvent of the two manganese dioxide, measured in the filtrate of trivalent manganese, manganese dioxide residue was measured, but the solubility of pyrolusite in this solution is still significant, some silicic acid Manganese compounds are also dissolved, it is not appropriate to oxidation of manganese to seven after the determination of Xinyu Steel had Shiro Watanabe described parties