A study of environmentally friendly recycling of technogenic chromium and nickel containing waste by the method of solid phase extraction

Eastern-European Journal of Enterprise Technologies

Oleksandr Frydman¹  Tetyana Zaytseva¹  Ganna Shyshkanova²  Artem Petryshchev²  Dmytro Stepanov²  Alexander Katschan²  Stanislav Hryhoriev³  Andrey Andreev³  Kristina Krupey³  Yuliya Petrusha³ 

[1] Oles Honchar Dnipro National University Haharina ave., 72, Dnipro, Ukraine, 49010;Zaporizhzhya National Technical UniversityZhukovskoho str., 64, Zaporizhzhya, Ukraine, 69063;Zaporizhzhya National UniversityZhukovskoho str., 66, Zaporizhzhya, Ukraine, 69600;

关键词: waste processing;    corrosion-resistant steel;    carbon thermal reduction;    phase analysis;    microstructure;    resource efficiency;   

DOI  :  10.15587/1729-4061.2018.121615

来源: DOAJ

【 摘 要 】

The study has revealed the regularities of the effect produced by increasing the content of scale of steel 12Cr18Ni10Ti in the charge from 5 to 75 mass % on the contents of the products of carbon thermal reduction of oxide waste of corrosion-resistant steels. The concentration of Ni is increased from 0.8 to 7.0 mass % when the Cr content ranges from 15.9 to 17.1 mass %. The concentration of Cr in the extraction products within the range of 16.1–17.1 mass% is provided with the content of scale of 95Cr18 steel in the charge in the range from 5 to 55 mass %. It has been found that metallization products mainly consist of a solid solution of alloying elements in α-Fe. Fe3O4, Fe3C, and Fe2C were also identified. The microstructure of the extraction products is spongy and disordered. The particles are sintered, with varying Cr and Ni contents in the ranges of 7.47 to 18.03 mass % and 2.97–10.40 mass %, respectively. The study has helped achieve environmentally safe conditions for solid-phase extraction of chrome and nickel containing industrial wastes from the production of corrosion-resistant steels with the return of the alloyed product to the welding industry

【 授权许可】

Unknown