In situ method for producing hydrosulfite beach and use thereof

Details In situ method for producing hydrosulfite beach and use thereof In situ method for producing hydrosulfite beach and use thereof

1991-10-11

1992-09-08

Bell, Mark L.

Compositions: ceramic

Ceramic compositions

Clay containing

106488, 1621818, C04B 3302

Patent

active

051458144

ABSTRACT:
A process for reacting metallic iron with sulfur dioxide (SO.sub.2) gas in the presence of water and bleachable matter, especially iron-contaminated kaolin clay, whereby the kaolin or the like is bleached in situ.

REFERENCES:
patent: 4157980 (1979-06-01), Tiethof

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