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Foret SA
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Foret SA
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Priority to ES547567ApriorityCriticalpatent/ES8707476A1/en
Publication of ES547567A0publicationCriticalpatent/ES547567A0/en
Publication of ES8707476A1publicationCriticalpatent/ES8707476A1/en
The process consists of (a) passing the washed sodium hydro-sulphite in a nitrogen stream at below 80 deg C continuously through a fluidised bed; (b) passing themethanol vapour contg traces of water and the nitrogen to a cooling tower in which the methanol condenses at 20 deg C; and (c) recycling the nitrogen through a heating system. - The saturation capacity of the nitrogen with methanol is continuously used between the condensn. temp of methanol and the inlet temp of the nitrogen.
ES547567A1985-10-031985-10-03Continuous drying of sodium hydrosulphite washed with methanol
ExpiredES8707476A1
(en)