Articles
  • Preparation and chromatic performance of black ceramic tiles from chromium slag, copper slag and silicon manganese slag

  • Yanglai Houa, Jiajie Yua, Dingli Zhengb,c,*, Ju Xub,c, Guojun Mab,c, Shokhrukh Khojievd,e and Nodir Kadirovd,e

  • aCollege of Science, Wuhan University of Science and Technology, Wuhan 430081, Hubei, China
    bKey Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education, Wuhan University of Science and Technology, Wuhan 430081, Hubei, China
    cJoint International Research Laboratory of Refractories and Metallurgy, Ministry of Education, Wuhan University of Science and Technology, Wuhan 430081, China
    d“Magistr” private scientific and production enterprise, Tashkent 100106, Republic of Uzbekistan
    eDepartment of Metallurgy, Almalyk branch of Tashkent State Technical University, Tashkent 110100, Republic of Uzbekistan

  • This article is an open access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Chromium slag, copper slag and silicon manganese slag are solid waste generated in industrial production. The recovery of valuable elements (Fe, Cr, Mn, etc.) in the waste slag to produce black ceramic tiles can enhance the utilization value of these solid waste and solve the problem of environmental resource constraints. In this study, the industrial waste of chromium slag, copper slag and silicon manganese slag were used as raw materials to prepare black ceramic tiles. The results showed that the best color of ceramic tiles appeared at the molar ratio of Fe/Cr/Mn=3:2:1, sintering temperature of 1150 oC, holding time of 45 min and cooling in the furnace. The valuesof L*, a*, b* and C* are 26.2, 1.0, 0.2, and 1.02, respectively. Meanwhile, the compressive strength and Cr6+ leaching concentration of the ceramic tiles at the optimal process parameters were 162.61 MPa and 0.97 mg/L, respectively, which met the national standards. The chromaticity coordinates of prepared black ceramic tiles are very near to the point with a saturation of 0, indicating that it is feasible to use chromium slag, copper slag and silicon manganese slag to prepare black ceramic tiles.


Keywords: Chromium slag, Copper slag, Silicon manganese slag, Black ceramic tiles.

This Article

  • 2025; 26(1): 139-147

    Published on Feb 28, 2025

  • 10.36410/jcpr.2025.26.1.139
  • Received on Jul 24, 2024
  • Revised on Sep 30, 2024
  • Accepted on Oct 24, 2024

Correspondence to

  • Dingli Zheng

  • bKey Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education, Wuhan University of Science and Technology, Wuhan 430081, Hubei, China
    cJoint International Research Laboratory of Refractories and Metallurgy, Ministry of Education, Wuhan University of Science and Technology, Wuhan 430081, China
    Tel : +86-17801024415 Fax: +86-02768862529

  • E-mail: dinglizheng@wust.edu.cn