The Steffen's process for the recovery of sugar from beet molasses consists of a cold and a hot precipitation. The molasses has a specific gravity of about 1.3 and a sucrose content of approximately 50 per cent. It is diluted with water until it has a specific gravity of about 1.05, and contains 5 to 6 per cent of sucrose. To this solution cooled to 15°C, powdered lime is added, with agitation, in the proportion of one part calcium oxide to one part sucrose. In the cold precipitation process, insoluble tri-calcium saccharate is precipitated.
Proceedings of the Iowa Academy of Science
©1932 Iowa Academy of Science, Inc.
Bartow, Edward and Little, E. C.
"Action of Solvents on Steffen's Waste Water From the Manufacture of Beet Sugar,"
Proceedings of the Iowa Academy of Science, 39(1), 139-148.
Available at: https://scholarworks.uni.edu/pias/vol39/iss1/26