The Results of the Brass Refining Process in the Reducer Conditions

Bydałek, A. W.

doi:10.2478/afe-2014-0005

Cited by 11 publications

(10 citation statements)

References 1 publication

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“…The previous studies [1][2][3][4][5][6][7][8][9][10][11][12] allow drawing the conclusion that there is a strong correlation between the nature of the ingots structure and formation of electron phases such as BCC β phase and HCP ε phase in the case of exceeding particular elements solubility limits [1][2][3]. It has been observed that formation of β and ε is complex due to mutual interactions between particular elements, which in turn make difficulties in its clear description and led to huge interpretation discrepancies presented in the literature [5][6][7][8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Precipitates Type in Brasses as a Function of Charge Material

Bydałek

Najman

Kula

et al. 2016

Archives of Foundry Engineering

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Trial series of cast alloy MO59 obtained from qualified scrap was investigated. SEM and TEM of resulting precipitates were conducted. The SEM analysis demonstrated the dependence of silicon, phosphorus, iron, chromium and nickel in the composition of the so-called hard precipitates. TEM analysis showed the formation of phase AlFeSi and AlCr. Made studies have shown the important role of the composition of the batch melts brass CuZn39Pb2 type. The analysis of SEM and TEM resulting precipitates pointed to the formation of various forms of divisions, only one of which was described in the literature character of the so-called hard inclusions. The SEM studies demonstrated the dependence of the occurrence of inclusions rich in silicon, phosphorus, iron, chromium and nickel. In contrast, additional TEM analysis indicated the formation of AlFeSi phase type and AlCr. The results of the analyses referred to the structure of the batch. Due to the difficulty of obtaining recycled materials that do not contain these elements necessary to carry out further analyzes in the direction of defining the role of phosphorus in the formation of the so-called hard inclusions.

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Section: Introductionmentioning

confidence: 99%

Evaluation of Precipitates Type in Brasses as a Function of Charge Material

Bydałek

Najman

Kula

et al. 2016

Archives of Foundry Engineering

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“…It is used in conjunction with the fluxes that correct physico -chemical properties of processed slag. However, in the light of the experience of the authors and other scientists [11][12][13][14][15], as well as theoretical analysis, that form of carbon reagent appears to be very inefficient. Reacting only with the agents of the melting atmosphere, solid carbonaceous/carbon does not dissolve itself, and, therefore, it does not react in the slag.…”

Section: Reagentsmentioning

confidence: 99%

“…The main physicochemical benefits of the application of such substances rely on their interaction with a properly prepared -both in terms of composition and properties of surface -active agents -slag layer [16,17]. Such an approach is a novelty in the pyrometallurgy of copper and currently is the object of patent application [18]. It enables the full usage of extraction reactions.…”

Section: Reagentsmentioning

confidence: 99%

“…1. A proposed scheme [11,12] of extracted process of a liquid slag with a carbide-cyjanamide reagents -scheme of the Carbo-N-Ox method, where: ( ) -gas, M -extracted metal, X -reagent St -reaction stymulator, {}-ions in the slag, [ ] -elements in the extracted metal They arise as a result of inserting carbide reactants or metal carbide with carbon or carbides to the slag -Carbo-N-Ox method [12][13][14]. Carbon -nitrogen reagents are of greater chemical activity than carbon and carbide.…”

Section: Reagentsmentioning

confidence: 99%

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The Concept of Slag Decopperisation in the Flash Furnace Process by Use of Complex Reagents

Bydałek¹,

Wołczyński²,

Biernat³

2015

Archives of Metallurgy and Materials

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The article presents an outline of the new technology of pyrometallurgical processing of slag in the direct-to-blister process. The analysis is based on the example of the production process of KGHM Polish Copper SA. A new way of implementing the technology of recovery of copper from the flash furnace slag by means of different feedstocks has been proposed. The method of controlling the processes is another innovation discussed in the paper. The presented concept intensify the reduction reactions, using the Carbo-N-Ox method, of copper compounds to forms of metallic phases in the slag. The processes of coagulation are accelerated and the processes crystallization of metallic phases are under control.Keywords: slag, decopperisation, reagents, recycling W artykule przedstawiono zarys nowej technologii pyrometalurgicznego przetwarzania żużli w procesie jednostadialnego otrzymywania miedzi. Zaproponowano nowy sposób realizacji technologii odzyskiwania miedzi z żużli z pieca zawiesinowego z zastosowaniem odmiennych materiałów wsadowych. Zaproponowano sposób sterowania procesami. Proponowana koncepcja prowadzi do intensyfikowania reakcje redukcji związków miedzi, metodą Carbo-N-Ox, do postaci faz metalicznych w żużlu. Przyspieszone też zostaną procesy koagulacji faz metalicznych. Zaproponowany został sposób analizy formowania się faz metalicznych w żużlu.

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“…It should also be noted that many studies take the subject brass strictly defined composition, but they do not indicate how to obtain the final material, especially copper alloys -brasses [5][6][7]. Especially when raw materials for its production are of quite different composition [8][9][10][11][12]. It should also be noted that a well-designed algorithm of the metal charge for brasses creates the possibility of writing a computer program, like the application to calculate the viscosity using the Iida models from the program Slag.…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Possibility of Calculating the Charges on the Example of Brasses

Biernat

Bydałek

Wołczyński

et al. 2017

Archives of Metallurgy and Materials

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This paper describes the subject of brasses and the method of their production from the secondary raw materials. It focuses on two very important aspects extremely important for today's world. The first of them is the theme of rational management of materials, particularly metallic scrap. The second issue is the growing importance of products made of brass, which in recent times get also special recognition in medicine. This article presents a proposal for a methodology for calculating the metal charge for brasses of two or more components. It turns out that by using suitable mathematical calculations one can accurately determine the amount of metal charge to obtain a product having the desired chemical composition and desired mechanical properties. Mathematical calculations are also presented in the graphical form for the visualization of dependency and a better explanation of the accepted approach.

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The Results of the Brass Refining Process in the Reducer Conditions

Cited by 11 publications

References 1 publication

Evaluation of Precipitates Type in Brasses as a Function of Charge Material

Evaluation of Precipitates Type in Brasses as a Function of Charge Material

The Concept of Slag Decopperisation in the Flash Furnace Process by Use of Complex Reagents

Analysis of the Possibility of Calculating the Charges on the Example of Brasses

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