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White Dross From Primary Aluminium Production And From Secondary Recycling

Aluminum Manufacturing - IFC

duction are scrap, chips, and dross. Pretreatment of scrap by shredding, sieving, magnetic separa-Aluminum Manufacturing ... pared with 164 GJ/t for primary production (mine to aluminum metal). Waste Characteristics At the bauxite production facilities, dust is emit- ... Secondary Aluminum Production. ...

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Sustainable Secondary Aluminum Production and …

12/11/2012 6 Aluminum Production Waste © 2012 11 How energy and waste efficient is recycling? Primary Secondary Consumption of energy (GJ/tonne Al)

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030310 Secondary aluminium production - Choisir …

scrap, machining turnings, and dross are prepared, smelted and refined. Preparation ... could be obtained. It is very likely, that large producers of primary aluminium also operate furnaces for scrap recycling; certainly , there is a much larger number of small ... 030310 Secondary aluminium production 105 Flue gas conc. [ng I-TEQ/m³] …

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Aluminium - Wikipedia

White dross from primary aluminium production and from secondary recycling operations still contains useful quantities of aluminium that can be extracted industrially. The process produces aluminium billets, together with a highly complex waste material.

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Workshop on Aluminium Recycling - SINTEF

Workshop on Aluminium Recycling 13th-15th June, 2010 Trondheim, Norway s. 2. 3 Contents Introduction 4 1. Collection of scrap 6 ... primary smelters), and reduces landfill space requirements and fees. ... • Metal in skimmings, white and black dross • Ingots, scalping chips • Edge and end trim

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Quantitative Analysis of Aluminum Dross by the ... …

Quantitative Analysis of Aluminum Dross by the Rietveld Method A. Go´mez1, ... The generation of white dross occurs at primary aluminum smelters, this product is ... and represents between 1 to 10% of the total production.2) Saltcake and black dross result from the recycling processes.

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Site Information - Access Washington Home

Secondary processing uses scrap aluminum and/or white dross to create aluminum by adding sodium and potassium chloride salts. The byproduct is black dross. Dross can be used in the production of aluminum sulfate, which also produces a solid byproduct.

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Secondary Aluminum Production | The Aluminum …

Secondary Production is the process of recycling aluminum scrap into aluminum that can be used again—an environmentally sound process that is 92 percent more energy efficient than primary production.

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New methods for reprocessing residues from aluminium recycling

New methods for reprocessing residues from aluminium recycling. ... During skimming in hearth or rotary drum furnaces during primary or secondary processing, 10–80% of the aluminium is lost. ... Such dross or skimmings can now be processed using the ALDROS system (aluminium dross processing system).

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The Latest Steps in Mechanical Processing and …

The Latest Steps in Mechanical Processing and Recovery of Aluminum Drosses ... period, at present the annual production of primary and secondary aluminum is at approximately ... White dross is produced from the melting of scrap at the many general recyclers, extruders and mills that process scrap aluminum. ...

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AP-42, CH 12.8: Secondary Aluminum Operations

recover aluminum from dross, furnace skimmings, and slag. It requires wet milling, screening, drying, and finally magnetic separation to remove fluxing salts and other waste products from the aluminum.

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dross Definition in the Cambridge English Dictionary

White dross from primary aluminium production and from secondary recycling operations still contains useful quantities of aluminium that can be extracted industrially.

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Aluminium salt slag / salt cake / black dross

Residues of Aluminium Production Primary Secondary ... Primary Recycling (old scrap) Production (Mio. t) 79,5 11,2 ... “white dross” : Originates from Primary …

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Processing of Aluminum Dross: The Birth of a Closed ...

This is the history of a modern aluminum dross recycling company, from its beginnings in the last years of the twentieth century to the present day. ... The idea was to treat white dross from primary aluminum smelters in Iceland locally, instead of exporting it to Europe for recycling. ... specifically the genesis, treatment and processing of ...

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Aluminium recycling - Wikipedia

White dross, a residue from primary aluminium production and secondary recycling operations, usually classified as waste , still contains useful quantities of aluminium which can be extracted industrially.

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Recovery of valuable products from hazardous aluminum ...

Recovery of valuable products from hazardous aluminum dross: A review. ... Such rise in the secondary aluminum production implies higher production of aluminum dross, both in primary and secondary smelters. ... Rotary salt furnaces (RSF) have been the primary means of recycling aluminum dross in the yesteryears. Recently, Plasma …

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Aluminum Recycling - ATLRecycling - Google Sites

Secondary Aluminum Recycling. White dross from primary aluminum production and from secondary recycling operations still contains useful quantities of aluminum which can be extracted industrially. The process produces aluminum billets, together with a highly complex waste material. This waste is difficult to manage.

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The Element of Sustainability - The Aluminum …

Secondary aluminum production; and Aluminum semi-fabrication (including foundries). These sub-sectors cover the majority of elements of the value chain in the production

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Aluminum Recycling Trentwood Site - Washington

Aluminum Recycling Trentwood site. The site is located at 2317 North ... aluminum processing, primary and secondary. Primary processing puts bauxite ore through a multi-phase process to create aluminum. The ... white dross into secondary aluminum that was sold. Black dross, along with non-reprocessed white

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aluminum and the recycling process - Sable Metal Recycling ...

White dross from primary aluminium production and from secondary recycling operations still contains useful quantities of aluminium which can be extracted industrially. The process produces aluminium billets, …

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Aluminum Secondary Smelters - austinai.com

White dross from primary aluminum production and from secondary recycling operations still contains useful quantities of aluminum that can be extracted industrially. Aluminum is remarkable for the metal's low density and its ability to resist corrosion through the phenomenon of passivation.

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OECD GLOBAL FORUM ON ENVIRONMENT …

ENVIRONMENT Focusing on SUSTAINABLE MATERIALS MANAGEMENT 25-27 October 2010, Mechelen, Belgium ... The report also describes flows of materials associated with the production of primary and secondary aluminum at the micro-level. These materials include both major inputs to bauxite, alumina, and aluminum ... recycling …

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ARTICLE: Reducing Melt Loss and Dross Generation - …

The issue of melt loss and dross generation has a significant impact on aluminum processing facilities and the cost of operation. ... Primary Aluminum Producers; Secondary Aluminum Producers; International Patents; Events; ... Light Metal Age, read worldwide, is the only U.S. magazine exclusively devoted to primary production …

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Development of Aluminum-Dross - Chen

Aluminum Dross is a by-product of Aluminum production. Today much energy is ... White dross is formed during the primary Al refining process, while black dross is formed during the secondary refining process, which uses relatively large amounts of Chloride salt fluxes. Subsequently, the dross is ... Development of Aluminum-Dross - Chen…

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Aluminium recovery during black dross hydrothermal ...

Aluminium recovery during black dross hydrothermal treatment. ... Today aluminium is produced via two different routes: primary aluminium production from bauxite ore and recycling aluminium (secondary production) from process scrap and used aluminium products.

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DEVELOPMENT OF ALUMINUM DROSS-BASED …

DEVELOPMENT OF ALUMINUM DROSS-BASED MATERIAL . FOR ENGINEERING APPLICATIONS . by . Chen Dai . A Thesis . ... Recycling results in significant cost savings over the production of primary new aluminum even when the cost of collection, separation and recycling are taken into account. Small percentage

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DROSRITE SALT-FREE PROCESSING OF HOT …

Since aluminum production is highly energy-intensive, dross recycling is attractive from both the energy and economic standpoints. Dross is produced both at primary smelters where aluminum is obtained by

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dross Meaning in the Cambridge English Dictionary

White dross from primary aluminium production and from secondary recycling operations still contains useful quantities of aluminium that can be extracted industrially. From . Wikipedia. Dross is the waste product of smelting, the impurities which rise to the surface above the heavier molten metal.

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Intech Integrated

Aluminium production has been ongoing for over a century and is still going strong. One of the key factors in the success of aluminum is its recyclability. White dross from primary aluminium production and from secondary recycling operations still contains useful quantities of aluminium which can be extracted industrially.

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Aluminium Dross Recycling - AZoM.com

Dross is formed as a by-product of aluminium production. Disposal of dross has long been a problem. A method for the recycling of dross is described, from its development to its commercialisation, as well as advantages. ... A New Technology for Recycling Aluminium Waste Products. Download PDF Copy; Request Quote; ... ‘This process …

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Al Scrap - austinai.com

White dross from primary Aluminum production and from secondary recycling operations still contains useful quantities of Aluminum that can be extracted industrially. Aluminum is remarkable for the metal's low density and its ability to resist corrosion through the phenomenon of passivation.

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Material Flow Analysis of Aluminum Dross and …

Material Flow Analysis of Aluminum Dross and Environmental Assessment for Its Recycling Process Kenichi Nakajima, Hirotake Osuga, Kazuyo Yokoyama and Tetsuya Nagasaka ... Secondary aluminum ingots Fig. 1 Production amounts of aluminum ingots and aluminum products. Al products a ... Material Flow Analysis of Aluminum Dross …

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