Red Mud Processing

50 Million Tons Per year Global Aluminum Production

0.8 - 1.2

tons per ton Alumina

High Dispersion and Residual Alkalinity

Global aluminum production reaches 50 million tons per year. The feedstock for this — bauxite, during metallurgical processing which (means the Bayer and sintering) are alumina, and then by electrolysis is aluminum.

When processing bauxite from different deposits by the Bayer method, red slurries are formed, which are removed from the process in the form of pulp and stored in sludge storage. The chemical and mineralogical composition of such slurries is quite complex. 

It depends on the composition of the original bauxite, as well as the method and conditions of processing. On 1 ton of alumina produced 0.8- 1.2 tons of red sludge is formed. The chemical composition of Bayer red slurries varies within the following limits.

In Canada and the US, there is currently no significant industrial capacity for mining REE’s, the main factor hindering the restoration of the rare earth industry in the US and Canada.

ENERVOXA has developed a technology for the integrated processing of red mud with the production of target valuable products – iron-containing pigments and coagulants, aluminosilicate materials, amorphous silicon dioxide, precipitated calcium carbonate, titanium, zirconium, scandium, and other rare-earth elements.

We have a zero-waste red mud processing technology, allowing us for the most efficient disposal of red mud while creating a more significantly economically profitable project that is more cost-effective than storage at red mud dumps. Given the prospective increase in environmental payments and fines for the use of red mud dumps and the deficit of free land in the city near existing facilities that process aluminum bauxites, the processing of red mud is becoming increasingly more feasible and profitable.

Recycling and processing red mud are more cost-effective than storage at red mud dumps. Given the prospective increase in environmental payments and fines for the use of red mud dumps and the deficit of free land in the city near existing facilities that process aluminum bauxites, the processing of red mud is becoming increasingly more feasible and profitable.

In terms of material composition, red mud can be considered an independent complex deposit of non-metallic and ore metals. One main advantage over conventional mineral deposits is that it is on the surface and does not require the cost of mining and milling of rock. Reserves of red mud are significant, and they are constantly increasing globally.

Competitive Edge

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Introduction

Enervoxa is a multi-integrated infrastructure and renewable energy construction company based in Canada with its operations worldwide.