Desilication and recycling of alkali-silicate solution seeded with red mud for low-grade bauxite utilization
نویسندگان
چکیده
منابع مشابه
A Mineralogical Assessment on Residues after Acidic Leaching of Bauxite Residue (Red Mud) for Titanium Recovery
Due to its alkalinity, red mud produced by the Bayer process may affect both the environment and human health. For this reason, its further utilization instead of disposal is of great importance. Numerous methods have already been studied for hydrometallurgical treatment of red mud, especially for the recovery of various metallic components such as iron, aluminum, titanium or rare earth element...
متن کاملPhysical and Chemical Properties of Sintering Red Mud and Bayer Red Mud and the Implications for Beneficial Utilization
Performances of two common types of red mud, Bayer red mud and Sintering red mud, were investigated in this research. Their compositions, mechanical properties and microstructure characterization were measured through XRD, TG and SEM analysis. Their shear strength, particle size, density and hydraulic characteristics also had been performed. Huge differences between the basic mineral types of t...
متن کاملUse of bauxite residue (red mud) as a low cost sorbent for sulfide removal in polluted water remediation.
Sulfide is an important pollutant in aqueous systems. Sulfide removal from polluted waters is required prior to discharge. Red mud (RM) is a solid waste of bauxite processing that is rich in reactive iron oxides and consequently has the potential to be used to remove sulfide from aqueous systems. A series of experiments was undertaken using raw and sintered RM to remove sulfide from waters. RM ...
متن کاملStockpiling and Comprehensive Utilization of Red Mud Research Progress
With increasing production of red mud, the environmental problems caused by it are increasingly serious, and thus the integrated treatment of red mud is imminent. This article provides an overview of the composition and the basic characteristics of red mud. The research progress of safe stockpiling and comprehensive utilization of red mud is summarized. The safe stockpiling of red mud can be di...
متن کاملNeutralization and utilization of red mud for its better waste management
In the Bayer process of extraction of alumina from bauxite, the insoluble product generated after bauxite digestion with sodium hydroxide at elevated temperature and pressure is known as ̳red mud‘ or ̳bauxite residue‘. Enormous quantity of red mud is generated worldwide every year posing a very serious and alarming environmental problem. This paper describes the production and characterization ...
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ژورنال
عنوان ژورنال: Journal of Materials Research and Technology
سال: 2020
ISSN: 2238-7854
DOI: 10.1016/j.jmrt.2020.04.095