C - Chemistry – Metallurgy – 01 – F
Patent
C - Chemistry, Metallurgy
01
F
23/21, 8/83
C01F 11/18 (2006.01) C09C 1/02 (2006.01)
Patent
CA 1134563
METHOD FOR INCREASING THE BRIGHTNESS OF LIMESTONE Abstract of the Disclosure Method for improving the brightness of limestone utilizing a flocculating agent and a bleaching agent where the pH of the slurry is between about 7 and 9.
344728
Dresser Industries Inc.
Macrae & Co.
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