Synthesis of chromium-containing pigments from chromium recovered from leather waste

Berry, Frank J.; Costantini, Nicola and Smart, Lesley E. (2002). Synthesis of chromium-containing pigments from chromium recovered from leather waste. Waste Management, 22(7) pp. 761–772.

DOI: https://doi.org/10.1016/S0956-053X(01)00046-0

Abstract

Cobalt-chromite green and chrome-tin pink pigments have been prepared from chromium extracted from leather shavings produced as a waste product of the leather-tanning industry. The alkaline agent (NaOH, CaO, MgO, NH₄OH) used in the extraction process influences the nature of the final product. The effect of the NH₄OH:CaO ratio on the final product in the case of cobalt-chromite green was examined. The pigments obtained were characterized by FT-IR and X-ray diffraction (XRD). Colour measurements were compared with those recorded from materials prepared from pure Cr₂O₃. The leaching of Cr(VI) from the materials was examined by UV spectroscopy.

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About

• Item ORO ID
• 2494
• Item Type
• Journal Item
• ISSN
• 0956-053X
• Extra Information
• Some of the symbols may not have transferred correctly into this bibliographic record.
• Academic Unit or School
• Faculty of Science, Technology, Engineering and Mathematics (STEM) > Life, Health and Chemical Sciences
  Faculty of Science, Technology, Engineering and Mathematics (STEM)
• Copyright Holders
• © 2002 Elsevier Science Ltd.
• Depositing User
• Lesley Smart