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Alumina and Bauxite

Lower grade ore, greater mineral complexity, tightening environmental regulations, and expanding political pressures create an ever expanding scope to be managed by today’s alumina & bauxite producers. Our programs provide added customer value by helping improve productivity, and optimize total cost of operation. Our approach is to align our program goals to customer key business drivers to help customers achieve their key sustainability goals.
Men pointing at Cooling towers

Today’s alumina & bauxite producer is constantly challenged to improve safety, profitability, efficiency, product quality and the environment.

Water plays a critical role in virtually all mining and mineral processing activities. It is a strategic resource with decreased availability and growing demand. Most of the water in the Bayer process must be evaporated, increasing energy consumption. More than ever, the industry requires solutions that demonstrate sustainable, ongoing water management.


Nalco Water is a partner that delivers economic and environmental value. We help increase yield/recovery, quality, conserve water, energy & raw materials, and optimizing process performance & increasing throughput. We use decades of industry experience, innovative technologies, and local on-site expertise to deliver the results you need. We do this with people and through the development & implementation of customized solutions including chemicals, equipment and services.

Authored Articles

Scale Formation Control on Lead Washers

Scale Formation is one of the most critical challenges to control the mud settling performance in a lead washer and to extend the vessel life.? ScaleGuard?? was trialed at Rio Tinto Yarwun alumina refinery with promising results.

Scale Inhibition in Washers

At Hindalco’s Muri alumina refinery in India, ScaleGuard? was applied to the first washer to extend the washer life and improve overall efficiency of caustic recovery.?

Crystal Close Up
Management and Control of Sodium Oxalate Precipitation in the Bayer Process
The presence of sodium oxalate in Bayer liquor presents a number of challenges to alumina refinery operators.? Reducing or eliminating the detrimental effects of solid sodium oxalate crystals on process operations requires significant effort and resources. A new range of morphology modifiers (ORT product range) has enabled more effective production of oxalate in the ball form.