• World Aluminium — Metallurgical Alumina Refining Energy ...

    Definitions. Energy intensity of metallurgical alumina production is energy consumed within the plant perimeter by bauxite refining processes (including calcination) and by those auxiliary operations on site which are directly connected with the total production process per tonne of alumina produced.

  • Alumina Processing Aids | Solenis

    Around the world, bauxite mines and alumina refineries strive to maximize liquor productivity and operating efficiency while minimizing environmental impact. Much of this effort is focused on optimizing the Bayer process to increase precipitation yield, improve product quality, reduce energy and water consumption, and minimize red mud disposal ...

  • AWC.AX - Alumina Limited Profile | Reuters

    Alumina Says FY Net Profit After Tax $635.4 Million Vs $339.8 Million ... AWAC operates mines integrated with alumina refineries in Western Australia and Brazil. ... IN ADVANCED …

  • Dynamic Simulation and Control of the Bayer Process. A ...

    Dynamic Simulation and Control of the Bayer Process. ... and control technologies in alumina refineries and the basis for the application of advanced control to various processes within a refinery ...

  • Improve the descaling process at Alcoa’s Wagerup Alumina ...

    Wagerup alumina refinery, which is 150 kilometres south of Western Australia’s capital city, Perth, commenced operations in 1984 and has an annual production capacity of 2.555 million metrics tons of alumina. It is one of the most environmentally and technologically …

  • List of alumina refineries - Wikipedia

    This is a list of alumina refineries in the world. The list is incomplete and missing some data. Smelter-grade alumina refineries. Country Location Coordinates Total Annual Capacity (kt) ... Shaping Solutions for the Future, Oslo: Hydro Media. United Nations, (2000).

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  • RUSAL Company Profile - Office Locations, Competitors ...

    RUSAL is a global producer of aluminium and alumina. Its assets include aluminium smelters, alumina refineries, bauxite mines, aluminium powder plants, silicon factories, and foil mills. The company serves transport, construction, power, and package industries.

  • ITP Aluminum: Alumina Technology Roadmap

    alumina and also the quantity of residue generated. The energy efficiency of the Bayer process can be improved directly or indirectly through the use of cogeneration, waste heat utilization, and synergies with nearby industries, as well as through equipment advances or process changes. Alumina Technology Roadmap 5 2 Alumina Industry Research and

  • Helping aluminum refineries pollute and consume less | Solvay

    Jan 10, 2019· Alumina refineries in China now burn less coal because they don’t need as much energy thanks to our improved MAX HT®,” explains Chuck. (Pictured: scale-free heater tubes) The challenge of reducing scale in alumina refineries worldwide was unsolvable until about 15 …

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  • MAX HT® | Solvay

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  • Integrated Environmental Solutions for Refineries

    Solutions that help refineries maintain production and lower costs while promoting safety and compliance. Managing a petroleum refinery is a delicate balancing act. You must meet the demands of a variety of customers, environmentally concerned community leaders, concerned government regulators and corporate leadership.

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  • Bauxite Residue Management - World Aluminium

    and the effect of the Bayer process. The technology and operating procedures at individual refineries will impact the water content and pH value of the material being discharged - two key factors in bauxite residue management. This document elaborates on the aluminium industry’s objective to ensure bauxite residue management

  • Application and Benefits of Advanced Control to Alumina ...

    APPLICATION AND BENEFITS OF ADVANCED CONTROL TO ALUMINA REFINING Robert K. Jonas Honeywell Int., 2500 W. Union Hills Dr., Phoenix, AZ, 85027, USA Keywords: alumina, advanced control, mpc Abstract Substantial returns to alumina refineries can be realized through the use of control technology that utilizes existing infrastructure

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    Automation solutions key to alumina refinery expansions ... from heat exchanger re-instrumentation to advanced digester unit control, Honeywell has helped all the major alumina companies improve their processes. ... So much so that utilising its control and safety systems, six global alumina refineries reported zero lost time injuries from over ...

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  • ARTICLE: Addressing the Challenge of Bauxite Residue ...

    Mar 11, 2019· An enormous quantity of caustic red mud is generated worldwide every year, posing a very serious and alarming environmental and safety problem. The storage of red mud is a challenge for alumina refineries (Figure 1), as storage pond dams sometimes collapse and/or fail due to heavy rains that cause flooding and breaching.

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  • Talk:List of alumina refineries - Wikipedia

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  • UOP adsorbent solutions in refining

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  • Alumina refinery residue storage: from lagooning to dry ...

    Alumina refinery residue storage: from lagooning to dry stacking. Tailings and byproducts in the mineral processing, mining and refining industries have been the greatest challenge since the beginning. In the case of alumina refineries, bauxite residue has relevant public consideration, due to the spillage occurred in the last years.

  • Alumina Refining Automation Solutions - Honeywell

    Alumina Refining Automation Solutions 7 Alumina refineries that adopt UniSim have reported millions of dollars worth of benefits from faster commissioning and control system check-out times for greenfield and brownfield expansion projects, in addition to the improvements in …

  • Digitalization of primary aluminium production: solutions ...

    Digitalization of primary aluminium production: solutions and challenges; ... Industry 4.0, Advanced process control, Big data etc. The reality is that the definitions of these terms are not always clear-cut, and in complex process industries like alumina refining and aluminium smelting, automation and digitalization can sometimes get muddled ...

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  • AWCMY.PK - Alumina Limited (ADR) Profile | Reuters

    Alumina Says FY Net Profit After Tax $635.4 Million Vs $339.8 Million ... AWAC operates mines integrated with alumina refineries in Western Australia and Brazil. ... IN ADVANCED …