2nd International Scientific Conference on «Sustainable and Efficient Use of Energy, Water and Natural Resources»

Synthesis of Novel Catalytic Materials Using Metallurgical Slags

Sep 19, 2019, 9:30 AM

15m

Панорамный конференц-зал, 6 этаж

Oral Sustainable Use of Natural Resources/Рациональное природопользование Green Chemistry/Зеленая химия

Speaker

Dr Marzhan Sadenova (aPriority Department Centre «Veritas», D. Serikbayev East Kazakhstan State Technical University)

Description

The development of science and technology makes new demands on the properties of materials and dictates the creation of new substances with improved properties necessary to improve the technical and economic indicators of production. On metallurgical, mining and concentrating industries there is an acute problem of waste disposal. Mostly metallurgical slags are used as an inexpensive additive in building materials. Recently, their unique chemical properties have attracted attention to the production of materials for use in catalysis as adsorbents, catalysts, or a source of active substances [1]. Studies [2] showed that metallurgical slag from the production of ferrous metals has adsorption properties and can be used to clean polluted water. It was discovered [3] that metallurgical slag can also be used as a carrier for the synthesis of catalysts in complete oxidation reactions in order to purify CO waste.
The continuous progress of industrialization and population growth leads to high CO2 emissions. In this regard, the demand for catalysts and carriers for catalysts is growing [4]. However, the synthesis of catalyst carriers based on technogenic raw materials requires the development of new technological methods of production. The solution to this issue may be the production of catalyst carriers from natural raw materials and industrial wastes by powder metallurgy methods.
In the production of catalyst carriers, the issue of phase composition, sintering and physicochemical processes during firing is of particular importance, since they determine mainly the operational properties of products.
Based on the data of X-ray phase, differential thermal and thermogravimetric analyzes, the areas of stability of the studied samples were determined during heat treatment, which allowed us to synthesize carriers with specified characteristics.

References

1. Montoya-Bautista C. V., Avella E., Ramírez-Zamora R.-M., Schouwenaars R. (2019). Metallurgical Wastes Employed as Catalysts and Photocatalysts for Water Treatment: A Review. Sustainability. 11, 2470. doi:10.3390/su11092470.
2. Dimitrova S., Nikolov V., Mehandjiev D. (2001) Effect of The Heat Treatment on The Morphology and Sorption Ability to Metal Ions of Metallurgical Slag. J. Mat.Sci. 36: 2639-2643. doi:10.1023/a:1017996325916.
3. Mihailova I., Ivanov G., Mehandjiev D. (2011). Catalytic Activity in Oxidation Reactions of Copper Furnace Slag and Converter Slag. Journal of the University of Chemical Technology and Metallurgy. 46: 143-150.
4. Catalyst Carriers Market Forecast, Trend Analysis & Competition Tracking - Global Review 2018 to 2028 (2018). www.factmr.com/report/1263/catalyst-carriers-market.