METHOD OF INTEGRATED PROCESSING low grade phosphate rock DEPOSIT Unecha

摘要

1.method of integrated processing u043du0438u0437u043au043eu0441u043eu0440u0442u043du043eu0433u043e phosphate u0441u044bu0440u044cu00a0 u043cu0435u0441u0442u043eu0440u043eu0436u0434u0435u043du0438u00a0 unecha, including decomposition of its acid compound, u043eu0442u043bu0438u0447u0430u044eu0449u0438u0439u0441u00a0, u0440u0430u0437u043bu043eu0436u0435 we are u0430u043du0438u043eu043du0430u043cu0438 acids which do not form a solid phase with u043au0430u0442u0438u043eu043du0430u043cu0438 u043au0438u0441u043bu043eu0442u043eu0440u0430u0441u0442u0432u043eu0440u0438u043cu044bu0445 minerals with an P2O5 u0441u044bu0440u044cu00a0 to the ions of hydrogen acid, equal 9 to 18, and the temperature range thusto u043au0440u0430u0437u043b u0441u044bu0440u044cu00a0 was not less than 98% u0444u043eu0441u0444u0430u0442u043du043eu043cu0443 substance obtained u043fu0443u043bu044cu043fu0443 u0441u0433u0443u0449u0430u044eu0442, winning the residue u043eu0442u0434u0435u043bu00a0u044eu0442, washed in two or more stages to u0434u043eu0441u0442u0438u0436u0435u043du0438u00a0 u043au043eu0442u043c not less than 98%, the solution process for the u0443u0434u043eu0431u0440u0435u043du0438u00a0 known methods and the residue u043du0430u043fu0440u0430u0432u043bu00a0u044eu0442 to receive u0440u0443u0442u0438u043bu043eu0432u043eu0433u043e and / or u0438u043bu044cu043cu0435u043du0438u0442u043eu0432u043eu0433u043e concentrate.;2. method for u043eu0442u043bu0438u0447u0430u044eu0449u0438u0439u0441u00a0 1, so that as the acid reagent using nitric, u0441u043eu043bu00a0u043du0443u044e acid or mixture of nitric and phosphoric acids.;3. method for u043fu043f.1, 2, u043eu0442u043bu0438u0447u0430u044eu0449u0438u0439u0441u00a0 so that a mixture of acids using the solution obtained at the manufacturing stage, nitrogen, phosphorus u0443u0434u043eu0431u0440u0435u043du0438u00a0.