Synchronous Reduction-sintering and Asynchronous Dissolution-beneficiation Technology of Ferric Bauxite

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This work may provide theoretical reference to the researchers, engineers, and administrators and university students engaged in mineral processing, alumina, chemical, building materials, metallurgy, environmental, mineral materials and other related subjects. 

内容简介

This work introduces the mineralogy characteristics of ferric bauxite, and presents the academic theory of direct reduction-sintering designed by Prof. Chuanyao Sun and Prof. Huajun Wang. Research on several technologies based on the theory is also introduced in detail. 

目录

1 Overview

1.1 Overview of ferric bauxite reserves

1.2 Gene mineral characterization of ferric bauxite

2 Synchronous Reduction-sintering and Asynchronous Dissolution-beneficiation

2.1 Direct reduction leaching process for ferric bauxite

2.2 Ferric bauxite direct reduction-lime sinter process and mechanism

2.3 Reaction mechanism between ferric bauxite and soda lime in reduction atmosphere

2.4 Selective enrichment of ferric bauxite based on direct reduction process

3 Effects of Minerals and Additives

3.1 Effects of minerals in ferric bauxite on sodium carbonate decomposition and volatilization

3.2 Effect of nonmetallic additives on iron grain grindability

3.3 Correlation between aggregation structure and tailing mineral crystallinity

4 Restraining of Alkali Consumption

4.1 Improvement of sodium leaching ratio of ferric bauxite sinter after direct reduction

4.2 Promote alumina leaching through re-pelleting: effects of directional coating of calcite on silicate grains

4.3 Restraining sodium volatilization in the ferric bauxite direct reduction system

4.4 Alkali consumption mechanism on ferrous bauxite reduction

4.5 A promotion of leaching properties using ephemeral amorphous state: effects of lattice transformation

5 Asynchronous Separation of Iron and Aluminum Slurry

5.1 Asynchronous separation

5.2 Principle of sintering method

5.3 Basic process of sintering process