Synthesis of high-performance copper barium silicate composite pigment from waste iron ore tailings

The mechanism of NOx removal in the sintering process based on source reduction of carbon emissions

“…Peaks at 1037 and 945 cm −1 are associated with Si–O vibrations, while the peak at 710 cm −1 represents vibrations in aluminum oxides. 40,41 The presence of peaks at 537 cm −1 (Si–O–Al) and 443 cm −1 (Si–O) is common in hematite and corresponds to lattice vibrations in iron oxides. 42,43 The study indicates that when substituting a portion of coke powder with poplar wood biochar in the sintering of iron ores, the different fuel mixture ratios have a minor influence on the functional groups present in the sintered ore.…”

Synthesis and Characterisation of Mg2+ and Al3+ Co-Doped CoCr2O4 Inorganic Pigments With High Near-Infrared Reflectance

“…The parameter C* (chroma) represents the colour saturation and is defined in Eq. ( 1) (Sukmarani et al, 2020;Gong et al, 2021).…”

Structural and Morphological Characterization of the Chromium-doped β-Spodumene to Ceramic Pigment

“…The production of silicates and aluminosilicates-based pigments as raw materials has increased significantly, mainly due to its solid-phase reactions at relatively low temperatures [13] and the ecofriendly synthesis possibilities using highly available raw material or from waste [14,15]. Sol-gel method has been noteworthy to the synthesis of oxide ceramics, presenting advantages such as good homogeneity of metallic precursors and reduced synthesis temperatures compared to the solid-state reaction method, due to shorter diffusion path [16,17].…”