Spray dried silica for chromatography

Details Spray dried silica for chromatography Spray dried silica for chromatography

1977-07-19

1978-12-26

Adee, John

Liquid purification or separation

With alarm, indicator, register, recorder, signal or...

Responsive to fluid flow

55 67, 55386, 210198C, 210502, 252448, 252451, B01D 1508

Patent

active

041315421

ABSTRACT:
A process for preparing a low-cost silica packing for chromatography is disclosed. The process involves spray-drying an aqueous silica sol containing from 5 to 60 weight percent silica, to form porous micrograins having a dense packing, acid-washing the porous micrograins, and sintering to effect a 5 to 20% loss in surface area.

REFERENCES:
patent: 3301635 (1967-01-01), Bergna et al.
patent: 3397153 (1968-08-01), Sippel
patent: 3782075 (1974-01-01), Kirkland
patent: 3872217 (1975-03-01), Meaz et al.

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