Burned refractories with low soluble chromium

Details Burned refractories with low soluble chromium Burned refractories with low soluble chromium

1993-01-22

1994-06-21

Group, Karl

Compositions: ceramic

Ceramic compositions

Refractory

501114, 501115, 501117, C04B 3512

Patent

active

053228278

ABSTRACT:
A burned chrome-containing refractory and method which provides a refractory having less than 5 ppm total soluble chromium. Such product is obtained by adding to the starting mix less than 10 wt. % (often less than 3 wt. %) zirconia, silica, zircon, or molybdic oxide either individually or in combination.

REFERENCES:
patent: 3309209 (1967-03-01), Martinet
patent: 3522065 (1970-07-01), Herron
patent: 3528830 (1970-09-01), Davies
patent: 3751273 (1973-08-01), Nelson et al.

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