Method for directly recovering fluorine from gas streams

Details Method for directly recovering fluorine from gas streams Method for directly recovering fluorine from gas streams

1980-04-24

1981-09-29

Peters, G. O.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Halogenous component

423464, 423500, 264117, B01D 5334

Patent

active

042922879

ABSTRACT:
This invention is a process for the direct recovery of gaseous fluorine from waste-gas streams or the like. The process comprises passing the gas stream through a bed of anhydrous K.sub.3 NiF.sub.6 pellets to fluorinate the same to K.sub.3 NiF.sub.7 and subsequently desorbing the fluorine by heating the K.sub.3 NiF.sub.7 pellets to a temperature re-converting them to K.sub.3 NiF.sub.6. The efficiency of the fluorine-absorption step is maximized by operating in a selected and conveniently low temperature. The desorbed fluorine is highly pure and is at a pressure of several atmospheres. Preferably, the K.sub.3 NiF.sub.6 pellets are prepared by a method including the steps of forming agglomerates of hydrated K.sub.3 NiF.sub.5, sintering the agglomerates to form K.sub.3 NiF.sub.5 pellets of enhanced reactivity with respect to fluorine, and fluorinating the sintered pellets to K.sub.3 NiF.sub.6.

REFERENCES:
patent: 3372004 (1968-03-01), Richardson et al.
patent: 3989808 (1976-11-01), Asprey

Affiliated with

Also associated with

Rating

Method for directly recovering fluorine from gas streams does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for directly recovering fluorine from gas streams, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for directly recovering fluorine from gas streams will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1233788