Method of milling the Portland clinker for the production of gyp

Details Method of milling the Portland clinker for the production of gyp Method of milling the Portland clinker for the production of gyp

1990-03-30

1992-06-30

Group, Karl

Compositions: coating or plastic

Coating or plastic compositions

Inorganic settable ingredient containing

106664, 106725, 106728, 106764, 106809, 106810, C04B 2416, C04B 702

Patent

active

051259761

ABSTRACT:
A method for milling Portland clinker for the production of gypsumless Portland cements is provided. The method comprises milling the Portland clinker in the presence of 0.01 to 0.05 weight % of a synthetic, organic, surface-active substance with wetting properties that is stable in an alkaline medium of pH 9-12, with the exception of the triethanolamide of dodecylbenzylsulphonic acid, to produce gypsumless Portland cements with specific surfaces of 350-750 m.sup.2 /kg.

REFERENCES:
patent: 3615785 (1971-10-01), Moorer et al.
patent: 3689297 (1972-09-01), Dybalski
patent: 4069063 (1978-01-01), Ball

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