PROCESS FOR RECOVERING SULPHURIC OXIDE, FERRIC OXIDE AND POTASSIUM SULPHATE AS SUCH OR CONVERTED IN SODIUM SULPHATE AND POTASSIUM HYDROXIDE FROM POTASSIUM JAROSITE

摘要

process for the recovery of potassium jarositul, so3, fe2o3 and k2so4 as or converted in na2so4 and koh, according to the invention, consists in that jarositul potassium,it is subjected to thermal decomposition at a temperature of approximately 1000 degree c for 1h.on the one hand so3 valorificabil resulting form of h2so4 and, on the other hand, a solid mixture consisting of feo3 and k2so4 from which further by washingdrying and macinare can be harnessed in pigmentilor industry or for obtinereafierului soft and k2so4 solution which form by concentration and crystallization can be harnessed as such tothey can be of k2so4 solution over a resin ion exchange last average prominent brow points to a male form ohwhen is it holding anionului so4laputerea 2 - and training in effluent of koh which can be used to getting jarositului potassium,rasinii and regeneration with a solution of naoh to form a solution of na2so4 which can be harnessed by crystallization.