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Vol 169
Pages:
191-192
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RUS
Research article
Without section

Processes of oxidation of impurities of metal concentrate of radio-electronic scrap

Authors:
A. N. Telyakov
About authors
  • G.V. Plekhanov Saint Petersburg Mining Institute
Date submitted:
2005-09-22
Date accepted:
2005-10-16
Date published:
2006-12-08

Abstract

The study was carried out in order to find technological conditions that allow anodic dissolution of metal concentrate of radio-electronic scrap without difficulties caused by anode passivation. The thermodynamic probability of sufficiently complete oxidation of impurities included in the metal concentrate was established. The composition of refining slag allowing to bind oxidized impurities in slag is selected. Time dependence of oxidation of impurities by air due to application of radial-axial tuyere is shown. It is indicated that for 15min of blowing it is possible to prepare the metal-concentrate alloy for successful anodic dissolution in sulfuric acid electrolyte.

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References

  1. Теляков А.Н. Утилизация отходов электротехнических предприятий / А.Н.Теляков, Д.В.Горленков // Металлургические технологии и экология: Тезисы докл. междунар. конф. СПб: Руда и металлы, 2003.
  2. Пат. 2211420 РФ. С1 7Е27 В17/02, 14/06. Лабораторная печь для опробования радиоэлектронного лома / Л.М.Шалыгин, Г.В.Коновалов, А.Н.Теляков и др. Опубл. 27.08.03. Бюл. № 24.

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