3079. ---------------. [SCHENCK, -----.] [Regeneration of Cobalt Solutions From Catalyst Production.] FIAT Reel K-29, frames 7,124-7,128, 1938; PB 70,218; TOM Reel 296. Description of tests on the regeneration of Co solutions by evaporation by which up to 90% of the Co has been recovered in form of lime-free Co nitrate salt. 2 tables. |