BENEFICATION OF FELDSPAR FROM YOZGAT REGION GRANITES

Year 2003, Volume: 127 Issue: 127, 32 - 33, 01.08.2003

Saruhan Saklar Ceynur Oktay

Abstract

In this study, a
feldspar beneficiation work was performed of the granite deposits of Sanhacih
and Kayabağı samples found in Yozgat region. Main impurities in these granitic
rocks are mica and iron-oxide minerals which cause iron contents to increase
(2.37 and 1.76 % Fe2O3). For decreasing
the iron content of granites, magnetic separation and flotation methods were
applied. After magnetic separation, the iron contents of granites were reduced
down to 0.22 and 0.20 % Fe2O3 respectively.
Flotation tests were carried out in two stages that were mica and oxide
flotation. In mica flotation, amine type cationic collector and in oxide
flotation anionic collectors i.e. Na-oleate and sulphonate were tried. Iron
contents of the samples were reduced down to 0.08 % and 0.12 Fe2O3 respectively by
flotation method. Firing button tests were also performed on the concentrates
at 1250 °C and the products had satisfactorily bright and white color tones for
both methods.

Keywords

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