砂鐵鑛の構成-主としてクローム及びヴアナジウムの含有に就て
1931 年 17 巻 4 号 p. 299-304
詳細
1931 年 17 巻 4 号 p. 299-304
From the results of analyses of 30 specimens the author concluded as the following with some discussiolls:-
1. Chromic oxide is not detected remarkably in general.
2. Few thousandths of one percent of vanadium oxide are always contained.
3. Ratio Ti/Fe being 0·051-0·869, but generally it lies between 0·1-0·4.
4. Ratio TiO2/V2O3 lies within 11-47 in most case.
5. The existence of chromium and vanadium in the titaniferrous iron sand is no more charecteristoc feacture; there lies nothing relations betwee titanium, chromlum and vanadium contents.
