ACTIVATION AND REGENERATION OF FLUORINATION CATALYSTS

摘要

A fluorination catalyst such as a chromium oxide-based fluorination catalyst may be activated or reactivated by contacting the catalyst. with a source of reactive fluorine, for example nitrogen trifluoride (NF3) or fluorine (F2). Fluorinated compounds may be prepared by the gas phase reaction of hydrogen fluoride (HF) with various substrates such as chlorinated compounds. A number of metal oxide-based catalysts have been developed for this purpose.

主权项

1. A method of reactivating a spent or depleted fluorination catalyst, comprising contacting the spent or depleted fluorination catalyst with an agent that is a source of reactive fluorine.