Ceramic pigment

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  • VNU Journal of Science, Natural Sciences and Technology 24 (2008) 280-286 In this study, primarily treating waste sludge rich of Cr, Ni, Fe,…generated from electroplating wastewater treatment plant and experimentally methods of utilizing wastes as inorganic pigment in production of bricks were carried out. Economic, technical and environmental efficiency and feasibility, bases to apply to practical conditions were evaluated. The results show that water accounts for about 70% of sludge. Contents of Ni, Cr and Fe are relatively high (20, 4.5 and 2.5%, respectively). ...

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  • By using kaolin A Luoi (Thua Thien Hue province) and the necessary materials, the blue pigment with different shades in the cordierite lattice have been synthesized. The blue pigment will be enamelled with a transparent glaze on to ceramic tile and L*, a*, b* colour parameters of representative samples were measured with a colorimeter.

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  • By using quartz sand in Thua-Thien-Hue and the necessary chemicals, we have determined the optimal conditions (firing temperature, composition) for the synthesis of the yellow pigment in the silicate zircon lattice with chromophore ion Pr4+. The synthesize pigment is the same colour characterization in comparison with the European one on the glaze of ceramic tile.

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  • The majority of lead contaminated sites in the Blacksmith Institute’s database are found in Africa, South America, South and Southeast Asia, but the problem of lead pollution plagues most developing countries worldwide. Its uses are varied; in Latin America it has often been utilized for ceramic glazing and in other countries leaded gasoline is still used. In the U.S. lead paint is the cause of a majority of lead exposures and such exposures can be expected in most countries since paint pigments using lead were commonly used worldwide up until a few decades ago.

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