PEMBUATAN PIGMEN TITANIUM DIOKSIDA DENGAN MEDIUM KLORIDA[Making Titanium Dioxide through Chloric Acid Leaching]
Abstract
PEMBUATAN PIGMEN TITANIUM DIOKSIDA DENGAN MEDIUM KLORIDA. Indonesia memiliki
cadangan bijih ilmenit yang melimpah. Pengolahan bijih ilmenit melalui jalur hidrometalurgi telah dapat
menghasilkan pigmen titanium dioksida. Hasil penelitian menunjukkan bahwa unsur besi dalam ilmenit dapat
dihilangkan menggunakan media klorida sehingga didapat titanium dioksida dengan konsentrasi yang cukup
tinggi. Ukuran butiran dan konsentrasi asam mempengaruhi penghilangan unsur besi. Semakin halus butiran dan
semakin tinggi konsentrasi asam, semakin banyak unsur besi yang bisa dihilangkan. Pada konsentrasi asam
klorida 37 % ukuran butiran -200 mesh dan temperatur 100 °C kadar TiO2 dapat ditingkatkan menjadi 88 %.
Abstract
THE MAKING OF TITANIUM DIOXIDE PIGMENT WITH CHLORIDE MEDIUM. Indonesia posses huge
amount of ilmenit deposits. The ilmenite can be processed to produce titanium dioxide through
hydrometallurgical method . The experimental results shows that the iron content in ilmenite can be eliminited
through chloric acid leaching, leaving high concentration titanium dioxide as the product. The particle size of
ilmenite and chloric acid concentrations affects the elimination rate of iron. The smaller the particle size and the
higher the acid concentrations, the higher amount of iron can be eliminated. At 37 % Chloric acid, -200 mesh
particle size and 100 °C, the concentrations of TiO2 can be increased up to 88 %.
Keywords
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