Process for production of activated carbon spheres

Details Process for production of activated carbon spheres Process for production of activated carbon spheres

1974-10-25

1977-08-30

Douglas, Winston A.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252422, 252426, 252438, 252444, 252445, B01J 3700

Patent

active

040453685

ABSTRACT:
Microporous pitch spheres prepared from pitch are oxidized at a temperature of from 100.degree. C to 500.degree. C in an atmosphere of an oxidative gas to produce pitch spheres containing not less than 10% by weight of combined oxygen. Then the combined oxygen-containing pitch spheres are heated at a temperature of from 150.degree. C to 700.degree. C in an atmosphere of ammonia gas to produce pitch spheres containing not less than 1.5% by weight combined nitrogen. The resultant pitch spheres are subsequently activated by a conventional method to produce activated carbon spheres containing more than 1% by weight of combined nitrogen.

REFERENCES:
patent: 1641053 (1927-08-01), Sauer
patent: 2867540 (1959-01-01), Harris
patent: 3053775 (1962-09-01), Abbott
patent: 3317339 (1967-05-01), Fortner et al.
patent: 3623999 (1971-11-01), Juntgen et al.
patent: 3776829 (1973-12-01), Goan
patent: 3909449 (1975-09-01), Nagai et al.
patent: 3917806 (1975-11-01), Amagi et al.

Affiliated with

Also associated with

Rating

Process for production of activated carbon spheres 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 production of activated carbon spheres, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for production of activated carbon spheres will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-961196