Stationary phase, preparation thereof and chromatographic column

Details Stationary phase, preparation thereof and chromatographic column Stationary phase, preparation thereof and chromatographic column

1985-11-05

1988-07-05

Lovering, Richard D.

Liquid purification or separation

With means to add treating material

Chromatography

2105021, 2523152, 427220, 428405, 208310R, B01D 1508, B01J 1300, B05D 700, B32B 1900

Patent

active

047552948

ABSTRACT:
The invention relates to a method of preparing a stationary silica phase for the purpose of packing a chromatographic column intended for the liquid-phase separation of components. There are thus effected a first grafting with functional groups of the amine type, a complete hydrolysis of the stationary phase so grafted, and finally a further grafting with functional groups of the alkyl type, optionally substituted. A chromatographic column packed with the stationary silica phase can be used to separate the constituents of a petroleum product.

REFERENCES:
patent: 2993809 (1961-07-01), Bueche et al.
patent: 3915735 (1975-10-01), Moreland
patent: 4034139 (1977-07-01), Mazarguil et al.
patent: 4121946 (1978-10-01), Chuiko et al.
patent: 4242227 (1980-12-01), Nestrick et al.
patent: 4316807 (1982-02-01), McDaniel et al.

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