Title of article :
X-Ray mapping and the mineralogy pattern of nickel laterite ore: Bavanat, Fars, Iran
Abbasi Gharaei, A Department of Mining Engineering - Science and Research Branch - Islamic Azad University - Tehran, Iran , Rezai, B Department of Mining and Metallurgy Engineering - Amirkabir University of technology (Tehran Polytechnic) - Tehran, Iran , Hamidian Shoormasti, H Department of Mining Engineering - Qaem Shahr Branch Islamic Azad University - Qaem Shahr, Iran
According to the classification of the nickel laterite, this paper describes mineralogy test
is to reveal where valuable elements are located in the ore, in which mineralogical form.
The purpose of the sieving test was to study if some specific particle size contains most
of the valuable metals. Based on its chemical composition nickel laterite is classified as
a limonite type and the nickel and cobalt content was 0.7 and 0.04%, respectively.
Nickel is predominantly associated with hematite and goethite. Based on the
mineralogical analysis of the ore, it is observed that remarkable part of nickel is located
in hematite. Therefore, nickel cannot be released from hematite lattice. The nickel
content in the laterite was 0.7% and the cobalt content 0.04%. The chemical
composition of laterite equals with the occurrence of 38.9% iron oxides, 26.9%
carbonates, 26.9% quartz, 4.8% chromite, 2.7% magnetite and 1.9% other minerals.
EDS line profile analyses were completed on hematite/goethite ooids and there was a
slight correlation in the quantities between iron and nickel in each individual ooid.
However, iron and nickel do not always show a positive correlation. Nickel grade could
be enriched from 0.7 wt.-percent to 0.91 wt.-percent; however nickel recovery was only
Laterites , Mineralogy , EDS Line Profile Analyses , Nickel