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US 4,361,504 AGranted
Process for making a silver catalyst useful in ethylene oxide production
AssigneeThe Dow Chemical Company
InventorsJeffry A. Solomon, Harold W. Young, Jr.
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Abstract
An improved process of making a silver catalyst which comprises impregnating a suitable support with an aqueous ammoniacal solution of a silver salt of an organic carboxylic acid and reducing said salt in the presence of a polyhydroxy compound.
Claims8
A process for making a supported silver catalyst which comprises:
- a. impregnating an inert porous support material with an aqueous solution of a silver salt of an organic carboxylic acid containing ammonium hydroxide,
- b. drying said impregnated support material at low temperature,
- c. reducing said silver salt on said impregnated support material by reacting said salt with a polyhydroxy compound to form said catalyst,
- d. removing residual reactants from said catalyst by washing with water, and
- e. drying at low temperature prior to use.
2 more elements
Dependencies are inferred from the claim text.