TY - THES

T1 - Extraction of Zn from dust generated during steel production

AU - Shpilevaya, Eleonora

N1 - no embargo

PY - 2023

Y1 - 2023

N2 - In this master's thesis, the technologies of zinc extraction from steelmaking dust have been analyzed. On the basis of the analysis the technological scheme for ferrous metallurgy waste processing of "`Severstal¿" company was developed, which includes two-stage dust leaching with hydrochloric acid, extraction, re-extraction, carbonization, HCl regeneration in "Ruthner" furnace and electrolysis. A number of experiments were conducted to identify the optimum parameters (temperature and duration) for the leaching operation. The option of providing hydrochloric acid regeneration in order to ensure the closure of the technology was also proposed. Factors that can affect the economic efficiency of the technology in case of implementation in the production scale were considered. Aspects affecting industrial safety have also been evaluated and measures to maintain a safe production environment have been proposed. The paper consists of pages and includes 16 figures and 20 tables.

AB - In this master's thesis, the technologies of zinc extraction from steelmaking dust have been analyzed. On the basis of the analysis the technological scheme for ferrous metallurgy waste processing of "`Severstal¿" company was developed, which includes two-stage dust leaching with hydrochloric acid, extraction, re-extraction, carbonization, HCl regeneration in "Ruthner" furnace and electrolysis. A number of experiments were conducted to identify the optimum parameters (temperature and duration) for the leaching operation. The option of providing hydrochloric acid regeneration in order to ensure the closure of the technology was also proposed. Factors that can affect the economic efficiency of the technology in case of implementation in the production scale were considered. Aspects affecting industrial safety have also been evaluated and measures to maintain a safe production environment have been proposed. The paper consists of pages and includes 16 figures and 20 tables.

KW - Zink

KW - Lichtbogenofenstaub

KW - Auslaugung

KW - Salzsäure

KW - Hydrometallurgie

KW - Extraktion

KW - Abfälle

KW - Abfälle aus der Eisenmetallurgie

KW - Verarbeitung von Industrierohstoffen

KW - zinc

KW - electric-arc furnace dust

KW - leaching

KW - hydrochloric acid

KW - hydrometallurgy

KW - extraction

KW - waste

KW - ferrous metallurgy waste

KW - processing of industrial raw materials

U2 - 10.34901/mul.pub.2023.187

DO - 10.34901/mul.pub.2023.187

M3 - Master's Thesis

ER -