434.    CARLSMITH, L. E.  Large-Scale Production of Oxygen.  FIAT Final Rept. 1120, 1947, 45 pp.; PB 88,840.

                  This report is a compilation of miscellaneous information on oxygen production not previously recorded.  The activities of the Messer Company are discussed and the larger plants built by them are listed.  The Kapitza process (Russian) is reported.  This is also a process in which low-pressure air is employed.  The outstanding feature appears to be the use of a very efficient, compact, radial-flow, expansion turbine.  Efficiencies of 81-83% are claimed for it.  An energy consumption of 0.28 kw.-hr./m.³ of O₂ has been reported compared with 0.445 claimed by Linde and 0.35 suggested for projected large-scale units in the United States.

                  ---------------.  See abs. 1625.

                  CARLSON, C. S.  See abs. 2325a.