Abrasive composition

Compositions: ceramic – Ceramic compositions – Glass compositions – compositions containing glass other than...

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

501 32, 501155, 65 331, 651348, 588252, 588256, 106DIG1, C03C 1000

Patent

active

059814136

ABSTRACT:
A glass-ceramic composition which is is crystallized in situ from a thermally crystallizable mixture containing from about 40 to about 80 weight percent of electric arc furnace dust and from about 10 to about 40 weight percent of glass. The composition has a Vickers hardness of at least about 5.5 gigaPascals, a Vickers fracture toughness of from about 0.6 to about 1.5 megaPascals.meters.sup.0.5, and a density of from about 2.8 to about 4.1 grams per cubic centimeter; and it contains from about 20 to about 40 weight percent of an iron oxide. When the composition is tested in accordance with the Environmental Protection Agency's Toxicity Characteristic Leaching Procedure, it produces a leachate which contains no detectable mercury, no detectable barium, no detectable selenium, less than 0.2 parts per million of detectable lead, less than 0.5 parts per million of detectable chromium, less than 0.1 parts per million of detectable cadmium, less than 0.005 parts per million of detectable arsenic, and less than 0.04 parts per million of detectable silver.

REFERENCES:
patent: 5434333 (1995-07-01), Jantzen et al.
patent: 5558690 (1996-09-01), Hnat et al.
"Glassification of Electric Arc Furnace Dust" Ek et al. Iron Steel Eng (1993) 70 (4), pp. 82-84. (abstract only).

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Abrasive composition does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Abrasive composition, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Abrasive composition will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1455592

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.