Adsorbents composed of inorganic oxides modified with organic dy

Details Adsorbents composed of inorganic oxides modified with organic dy Adsorbents composed of inorganic oxides modified with organic dy

1994-10-05

1996-01-16

Einsmann, Margaret

Bleaching and dyeing; fluid treatment and chemical modification

Nontextile, dyeing process or product, including inorganic...

Inorganic substrate

2524081, 428404, 106482, 106483, 95117, B01J 2032, B01J 2004, D06P 380

Patent

active

054844541

ABSTRACT:
Particulate adsorbents composed of inorganic oxides impregnated with an indicator dye selected from the group consisting of phenolphthalein, cresol red and thymol blue; a method for the production thereof, and a method for adsorptive drying of neutral gases using the aforementioned particulate adsorbents, whereby the degree of water absorption by the adsorbent particles is indicated by a reversible color change.

REFERENCES:
patent: 3477866 (1969-11-01), Remor
patent: 3716388 (1973-02-01), Lopez et al.
patent: 4167422 (1979-09-01), Bellanca et al.
patent: 4769079 (1988-09-01), Clark et al.
patent: 5074917 (1991-12-01), Persello

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