Article Back

NEW RECYCLING METHOD FOR GRINDING SLUDGE FROM THE PRODUCTION OF PERMANENT MAGNETS (ALNICO)

1 KANIA Harald
Co-authors:
1 NOWACKI Krzysztof
Institution:
1 Silesian University of Technology, Faculty of Materials Engineering and Metallurgy, Katowice, Poland, EU, 1harald.kania@polsl.pl
Conference:
27th International Conference on Metallurgy and Materials, Hotel Voronez I, Brno, Czech Republic, EU, May 23rd - 25th 2018
Proceedings:
Proceedings 27th International Conference on Metallurgy and Materials
Pages:
136-142
ISBN:
978-80-87294-84-0
ISSN:
2694-9296
Published:
24th October 2018
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
71 views / 36 downloads
View Full-text Download PDF
Abstract

In the grinding process of steel products, considerable amounts of grinding dust are generated, polluted with coolant (oil, oil emulsions), and non-metallic material from abrasive (silicon carbide, aluminum oxide and others). Grinding sludge generated as a result of this mechanism is a valuable source of post-industrial waste containing, apart from iron, such alloying elements as: cobalt, nickel, copper, tungsten, molybdenum, and vanadium. Considering the metallurgical value of grinding sludge, a method for recovering these elements from the sludge has been developed. The article presents a recycling method in a three-stage technological process consisting of sludge de-oiling, sintering, and re-melting in an electrical furnace.

Keywords: steel, grinding dust, new recycling method

© This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Scroll to Top