| Abstrakt: |
An iron ore has the characteristics of many kinds of minerals and high content of both aluminum and silicon. The contents of TFe, MFe, SiO2 and Al2 O3 are 24.94%, 3.99%, 33.81% and 13.75% respectively. The results of chemical phase analysis of iron show that the percentage of iron in magnetite is 16.00%, in hematite is 36.49%, and in ferric silicate is 41.34%. In order to make full use of the ore resources, the technological flowsheet of low intensity magnetic separation - high intensity magnetic separation - reverse flotation and new collector BK448 were used in the beneficiation test, and the final indexes were obtained as follows: the iron grade of iron concentrate 1 was 65.45% and the iron recovery was 15.43%, the iron grade of iron concentrate 2 was 60.86% and the iron recovery was 31.42%. In a word, the iron ore in the magnetite and hematite in the total iron share of 42.49%, the total iron recovery of 46.85% of the better indexes. [ABSTRACT FROM AUTHOR] |
