Calcined, high surface area, particulate matter, processes using

Details Calcined, high surface area, particulate matter, processes using Calcined, high surface area, particulate matter, processes using

1982-05-14

1984-04-03

Garvin, Patrick

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

Zeolite or clay, including gallium analogs

Including organic component

502 85, 502 63, 502401, 502 80, 502412, 502413, 502407, 502416, 210660, B01J 3902, B01J 3904, C02F 142

Patent

active

044408676

ABSTRACT:
This invention is concerned with production and use of high surface area particulate matter by calcining a charge of clay mineral, feldspar, zeolite, coal ash, fly ash, pozzolan or volcanic ash for a time to develop fractures which increase the surface area of the particles. Vacuum calcining decreases the calcining time. The calcined matter desirably has an analysis including: calcium oxide, about 20-40 weight %; aluminum oxide, about 15-35 weight %; and silicon oxide, about 20-40 weight %.
The calcined particulate matter can be used in the treatment of impure aqueous materials; the matter is denser than water and sludge settles rapidly and completely. The calcined matter interacts with heavy metal ions to form tightly bound sludge that is nonhazardous for landfill disposal. The calcined matter can be combined with conventual coagulants, flocculants, filter aids, or activated carbon to obtain a multipurpose treating agent.
The calcined particulate matter can be combined with exotic waste water treating agents obtaining results not attainable by these exotic agents alone. The exotic agents are borohydride, dialkyldithiocarbamates where alkyl has 1-5 carbon atoms and `carbamate` has alkali metal or ammonium, dithionites, glycine, hydrazine salts, metabisulfites, polygalacturonic acid, water soluble sulfides and sulfites, and cellulose and starch xanthates.

REFERENCES:
patent: 3723351 (1973-03-01), Flank et al.
patent: 4133755 (1979-01-01), Tarao et al.
patent: 4325846 (1982-04-01), Shibata
patent: 4363749 (1982-12-01), Weiss et al.
patent: 4378306 (1983-03-01), McDaniel et al.

Affiliated with

Also associated with

Rating

Calcined, high surface area, particulate matter, processes using does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Calcined, high surface area, particulate matter, processes using, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Calcined, high surface area, particulate matter, processes using will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-667765