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US 12,357,968 B2Granted
Catalyst activation method
AssigneeMexichem Fluor S.A. De C.V.
InventorsAndrew Sharratt, Claire Rees
Life of this patent
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Abstract
A method for activating a catalyst comprises the steps of: a) optionally drying the catalyst at a temperature of from 100° C. to 400° C.; b) treating the catalyst with a composition comprising HF at a temperature of from 0° C. to about 500° C.; c) treating the catalyst with a composition comprising an oxidant and optionally HF at a temperature of from about 100° C. to about 500° C.
Claims24
A method for activating a chromia catalyst comprising zinc oxide, the method comprising:
- a) drying the catalyst at a temperature of from 100° C. to 400° C.;
- b) treating the catalyst in a first activation step with a composition comprising HF at a temperature of from 100° C. to about 500° C.;
- c) treating the catalyst in a second activation step with a composition comprising an oxidant and HF at a temperature of from about 100° C. to about 500° C.
Dependencies are inferred from the claim text.