Process for the deferrization of kaolin, quartzose sand, paper f

Details Process for the deferrization of kaolin, quartzose sand, paper f Process for the deferrization of kaolin, quartzose sand, paper f

1992-09-09

1993-11-30

Bell, Mark L.

Compositions: ceramic

Ceramic compositions

Clay containing

501141, 501145, 501146, 501148, 106488, C04B 3302, C04B 3304, C04B 3310

Patent

active

052665399

ABSTRACT:
The present invention relates to a process for selectively purifying ceramic materials for glass, paper and electronics use contaminated with iron compounds, the process using ascorbic acid or its derivatives as the iron reducing agent.

REFERENCES:
patent: 3892587 (1975-07-01), Abercrombie, Jr.
patent: 3914385 (1975-10-01), Slade
patent: 4075030 (1978-02-01), Bundy et al.
patent: 4356058 (1982-10-01), Fischer et al.
patent: 4618374 (1986-10-01), Thompson, III et al.
patent: 4828743 (1989-05-01), Rahfield et al.
patent: 4871423 (1989-10-01), Grimsley et al.

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