Process for the recovery of gallium and germanium from coal fly

Details Process for the recovery of gallium and germanium from coal fly Process for the recovery of gallium and germanium from coal fly

1986-05-12

1987-07-07

Doll, John

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group iva metal

423133, 423 88, 423542, C01G 1500, C01G 1700

Patent

active

046786473

ABSTRACT:
A method is disclosed for recovering gallium and/or germanium from fly ash which comprises pelletizing the fly ash, treating the pellets in the presence of an oxidizing gas at a temperature of from about 900.degree. C. to just below the fusion temperature of the pellets, treating the pellets in the presence of a reducing gas at the same temperature range, and recovering gallium and/or germanium suboxides from the gas.

REFERENCES:
patent: 4071422 (1978-01-01), Charlton et al.
patent: 4252777 (1981-02-01), McDowell et al.
patent: 4375453 (1983-03-01), Nalewajek et al.
patent: 4475993 (1984-10-01), Blander et al.
Report of Investigation 6940 of the United States Department of the Interior, Bureau of Mines, "Extraction of Germanium and Gallium from Coal Fly Ash and Phosphorous Furnace Flue Dust", by R. F. Waters and H. Kenworthy (1967).

Affiliated with

Also associated with

Rating

Process for the recovery of gallium and germanium from coal fly does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for the recovery of gallium and germanium from coal fly , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the recovery of gallium and germanium from coal fly will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1662022