Berry, Frank J.; Costantini, Nicola and Smart, Lesley E.
Synthesis of chromium-containing pigments from chromium recovered from leather waste.
Waste Management, 22(7) pp. 761–772.
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.
||2002 Elsevier Science Ltd.
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||Science > Life, Health and Chemical Sciences
||17 Jul 2006
||23 Oct 2014 11:20
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