Spinning band

Details Spinning band Spinning band

1993-07-09

1995-12-05

Manoharan, Virginia

Distillation: apparatus

Apparatus

Systems

202158, 202237, 202238, B01D 314

Patent

active

054725747

ABSTRACT:
Bands used in fractionating columns, and more specifically, to the type made from either a metal screen strip or from a Teflon sheet twisted into a helicoid. In addition to previously documented design characteristics, the present spinning band includes a number of additional, circular apertures cut into the face of the metal screen strip and Teflon sheet. The circular apertures, sequentially arranged along the centerline of the band, add to the operating efficiency of the spinning band as it is employed in a fractionation process.

REFERENCES:
patent: 2333712 (1943-11-01), Eckey
patent: 2575690 (1951-11-01), Smith
patent: 2608528 (1952-08-01), Piros et al.
patent: 2712520 (1955-07-01), Nester
patent: 2880979 (1959-04-01), Wheeler
patent: 3080303 (1963-03-01), Nerheim
patent: 3240682 (1966-03-01), Gordon
patent: 3292683 (1966-12-01), Buchi et al.
patent: 3372095 (1968-03-01), Nester
patent: 3390963 (1968-07-01), Wiegandt
patent: 4770746 (1988-09-01), Mayo et al.
Birch et al., "Spinning Band Column for High Vacuum Fractionation"; J.S. Cl. I. 66, Feb. 1947, pp. 33-40.

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