Composition for separating out noxious substances from gases and

Details Composition for separating out noxious substances from gases and Composition for separating out noxious substances from gases and

1993-02-17

1994-10-04

Konopka, Paul E.

Catalyst, solid sorbent, or support therefor: product or process

Solid sorbent

Free carbon containing

502400, 502407, 502411, 502415, B01J 2004, B01J 2020, B01J 2010

Patent

active

053526473

ABSTRACT:
A composition for separating out volatile pollutants from gases and exhaust gases consists of calcium hydroxide and water-soluble salts of sulfur-containing compounds, e.g., mercaptans, sulfides, polysulfides, polythionates and thiosulfates, or elementary sulfur which are used in combination with surface-active substances.
Possible ways to produce the composition include adding the sulfur-containing compounds to the quicklime during slaking, to the slaking water, or, subsequent to slaking, to calcium hydroxide.
The compositions are used for removing the volatile heavy metals, particularly mercury, arsenic, cadmium, thallium, antimony and lead, at temperatures ranging from 20.degree. to 400.degree. C. For this purpose, the composition is blown as powder into the exhaust gas stream, and the resultant products are separated out at fabric filters. Upon addition of surface-active substances, volatile organic pollutants are removed simultaneously with the aforementioned inorganic pollutants.

REFERENCES:
patent: 783570 (1905-02-01), Ellis et al.
patent: 3739550 (1973-06-01), Martin et al.
patent: 4046856 (1977-09-01), Itoo et al.
patent: 4061716 (1977-12-01), McGauley
patent: 4101631 (1978-07-01), Ambrosini et al.
patent: 4206183 (1980-06-01), Yamada et al.
patent: 4323544 (1982-04-01), Magder
patent: 4442080 (1984-04-01), Donnelly et al.
patent: 4472370 (1984-09-01), Miyata et al.
patent: 4526703 (1985-07-01), Gebhard et al.
patent: 4532115 (1985-07-01), Nishino et al.
patent: 4588568 (1986-05-01), Pollmann
patent: 4629130 (1986-12-01), Veltman
patent: 4636379 (1987-01-01), Bastek et al.
patent: 4713226 (1987-12-01), Veltman
patent: 4744964 (1988-05-01), Kuhl
patent: 4764355 (1988-08-01), Romey et al.
patent: 4767605 (1988-08-01), Lindbauer et al.
patent: 4810478 (1989-03-01), Graf
patent: 4851202 (1989-07-01), Fennemann
patent: 4997803 (1991-03-01), van der Smissen et al.

Affiliated with

Also associated with

Rating

Composition for separating out noxious substances from gases and does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Composition for separating out noxious substances from gases and, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Composition for separating out noxious substances from gases and will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-581201