PROCESS FOR PREPARATION OF PSEUDOBROOKITE-BASED INORGANIC BROWN PIGMENT

摘要

the invention u043au0430u0441u0430u0435u0442u0441u00a0 u043fu0440u0438u043cu0435u043du0435u043du0438u00a0 inorganic pigments, and can be used in paint and paper industry, as well as in the production of sounds u044cu043du044bu0445 materials and ceramics. purpose u0438u0437u043eu0431u0440u0435u0442u0435u043du0438u00a0 u00a0u0432u043bu00a0u0435u0442u0441u00a0 simplification and u0438u043du0442u0435u043du0441u0438u0444u0438u043au0430u0446u0438u00a0 process u043fu043eu043bu0443u0447u0435u043du0438u00a0 brown inorganic pigment based on a mixture of u043fu0441u0435u0432u0434u043eu0431u0440u0443u043au0438u0442u0430 and u0440u0443u0442u0438u043bu0430.the u0434u043eu0441u0442u0438u0433u0430u0435u0442u0441u00a0 u043fu043eu0441u0442u0430u0432u043bu0435u043du043du0430u00a0 so that as the original mixture using enriched u0438u043bu044cu043cu0435u043du0438u0442u043eu0432u044bu0439 concentrate, which tentatively are to the fraction r u0430u0437u043cu0435u0440u043eu043c particles 25 - 45 microns and u043fu0440u043eu043au0430u043bu0438u0432u0430u044eu0442 at 640 - 850.the obtained brown inorganic pigment, and a mixture of u043fu0441u0435u0432u0434u043eu0431u0440u0443u043au0438u0442u0430 u043fu0440u0435u0434u0441u0442u0430u0432u043bu00a0u044eu0449u0438u0439 u0440u0443u0442u0438u043bu0430 and qualitative u043fu043eu043au0430u0437u0430u0442u0435u043bu00a0u043c the pigment is obtained by known cnocojy. (table 2). (l.