EXTRACTION OF IRON OXIDE AND CONCENTRATION OF TITANIUM COMPOUNDS IN RED MUD

被引：0

作者：

Magalhaes, Edilson Marques ^{[1
]}

Macedo, Emanuel Negrao ^{[1
]}

Quaresma, Danielly Da Silva ^{[1
]}

Souza, Jose Antonio da Silva ^{[1
]}

Quaresma, Joao Nazareno Nonato ^{[1
]}

机构：

[1] Univ Fed Para PRODERNA, BR-66075110 Belem, Para, Brazil

来源：

EPD CONGRESS 2012 | 2012年

关键词：

Bayer process; Red Mud; leaching;

D O I：

暂无

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The production of alumina from bauxite using the Bayer process generates the residue known by red mud. This material can be used as a source for concentration and recovery of valuable metals such as titanium. The greatest difficulty of concentrating titanium compounds is the large amount of iron oxide present in red mud > 30% by weight. This paper shows the extraction of the iron oxide, increasing the concentration of the titanium compounds. The red mud is leached with H2SO4 at 30% concentration and temperature range of 60 degrees C, 80 degrees C and 90 degrees C. Analysis of the leached and concentrated was made to verify the effectiveness of the iron oxide extracting process and the titanium compounds concentration viability.

引用

页码：345 / 352

页数：8

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