Dithionite → HCID 18321164, compound

Participants

Reaction Steps

The process of EXAMPLE 1 was run continuously with a sodium hydrosulfite solution feed containing 144.8 g/l of Na2S2O4, 11.6 g/l of sodium thiosulfate, 23.8 g/l of sodium sulfite, and 81.1 g/l of sodium bisulfite. The hydrosulfite solution was fed at a rate of 12 gallons per minute to the crystallizer of EXAMPLE 1 to produce a slurry of sodium hydrosulfite dihydrate crystals which was continuously fed to the hydrocyclone series. Product sized crystals were continuously conveyed to the centrifuge at a rate of 1.4 gallons per minute. After dissolving the crystalline cake recovered from the centrifuge, a product solution containing 130.4 g/l of sodium hydrosulfite, and 4.1 g/l of sodium thiosulfate was continuously recovered.

Provenance & Evidence