Method of bleaching limestone

Details Method of bleaching limestone Method of bleaching limestone

1988-09-29

1989-04-25

Straub, Gary P.

Chemistry of inorganic compounds

Carbon or compound thereof

Oxygen containing

106464, 423173, C01F 524, C01F 1118, C01F 1106, C09C 102

Patent

active

048246530

ABSTRACT:
A method for improving the brightness of limestone utilizing a chelating agent and a bleaching agent in a limestone slurry in which the pH of the slurry is normally between 9.0 and 9.6.

REFERENCES:
patent: 4018877 (1977-04-01), Woode
patent: 4157397 (1979-06-01), Arika et al.
patent: 4239736 (1980-12-01), Fenske
patent: 4661164 (1987-04-01), Severinghaus, Jr.

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