Treatment of toxicant-impregnated filter cake

Details Treatment of toxicant-impregnated filter cake Treatment of toxicant-impregnated filter cake

1987-10-22

1989-04-11

Lindsay, Robert L.

Glass manufacturing

Processes

Repairing or cleaning of apparatus; or batch dust prevention...

422900, 501 27, 501 36, 501155, C03B 500, C03C 304

Patent

active

048203254

ABSTRACT:
A filter cake formed of a glass precursor material and impregnated with a normally leachable toxicant can be heated, preferably with at least one other glass precursor material, at a sufficiently high temperature to form a molten composition which solidifies, upon cooling, to form a glass. The normally leachable toxicant becomes fixed within the glass rendering it substantially more non-leachable allowing for a more environmentally sound means for disposal, e.g., by landfill techniques. The process can be used to treat the arsenic sulfide-impregnated filter cake derived from the manufacture of food grade phosphoric acid.

REFERENCES:
patent: 3007882 (1961-11-01), Lach et al.
patent: 4020004 (1977-04-01), Schulz et al.
patent: 4272293 (1981-06-01), Hooykaas
patent: 4678493 (1987-06-01), Roberts et al.
Chemical Abstracts, vol. 87, 90346r, 1977.
Chemical Abstracts, vol. 88, 141266v, 1978.
Chemical Abstracts, vol. 99, 10383k, 1983.
Chemical Abstracts, vol. 99, 90363s, 1983.
Chemical Abstracts, vol. 104, 36659b, 1986.
Chemical Abstracts, vol. 91, 180844p, 1979.

Affiliated with

Also associated with

Rating

Treatment of toxicant-impregnated filter cake does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Treatment of toxicant-impregnated filter cake, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Treatment of toxicant-impregnated filter cake will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-664492