US5545599A - Process for whitening kaolin - Google PatentsAs a result, there have been, in recent years, many techniques developed for beneficiating and improving the whiteness and brightness of kaolin clay products. . 5,128,027 to Halaka et al. proposes a process for removing mineral slimes from a slurry of kaolin comprising treating the kaolin slurry with a dispersing agent (e.g..Susceptibility of Enamel Treated with Bleaching Agents to Mineral .Jun 7, 2011 . While an attractive smile has become an important component of the oral health, the demand of white teeth has brought the manufacturers to improve the nonrestorative treatment of discolored teeth. Today bleaching is an easy, conservative method to improve the esthetic appearance compared with other.
Bleaching of kaolins and clays by chlorination of . - Semantic ScholarThe use of chlorination for iron and titanium removal from different clay and kaolin minerals, used in Argentinian ceramic . in the case of the San Luis red clay, is enough for extraction improvement. However, the . color of the final product of the firing, achieving ceramic materials with notable whiteness, even with red clays.Tooth Whitening: What We Now Know - NCBI - NIHFeb 13, 2014 . The new research is also focused on optimizing whitening procedures to reduce tooth sensitivity and to increase the persistence of the whitening. . Intrinsic staining examples: D. Age yellowing; E. Decay; F. Orthodontic white spot lesion; G. Mild fluorosis; H. Amalgam restoration; I. Tetracycline .
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