METHOD OF PRODUCING SODIUM PYROSULFITE

摘要

the invention u043eu0442u043du043eu0441u0438u0442u0441u00a0 chemical technology of inorganic salts, in particular to obtain u043fu0438u0440u043eu0441u0443u043bu044cu0444u0438u0442u0430 u043du0430u0442u0440u0438u00a0, and increase the content of the main thing u043fu043eu0437u0432u043eu043bu00a0u0435u0442 applied in the product. method u0437u0430u043au043bu044eu0447u0430u0435u0442u0441u00a0 in collaboration of soda ash, prior to u0441u043eu0434u0435u0440u0436u0430u043du0438u00a0 in her moist moisture 32 - 33% and u0440u0430u0441u0442u0435u0440u0442u043eu0439, u0441u0435u0440u043du0438u0441u0442u044bu043c gas with content mr. zog 9 - 11 of.% with 50 to 60 & deg; c for 39 to 57 min.it is the product of NaaSaOs 99.2 - 99.8%. 1, table 2).