Rheinische Kalksteinwerke Gmbh

Friedrich Schmitz

Alfred Roeder

Klaus Bergmann

Heinz Reppel

Heinz Bestek

Werner Ewald

Gottfried Kilian

Hans-Peter Hennecke

A process is provided for producing dry calcium hydroxide by slaking finely divided or ground, softly burnt lime by carrying out the blending of slaking liquid consisting of 30 to 50 parts by volume water and 70 to 50 parts by volume organic solvent with the lime at a temperature below 45.degree. C. in a mixing vessel, subsequently transferring the reaction mixture into a main reaction vessel where the mixture is heated by means of a heating device to a temperature of from 50.degree. to 70.degree. C., and carrying out the final reaction in another reaction vessel. In the mixing vessel, the ratio of lime to slaking liquid is selected in a way such that a final reaction temperature of 85.degree. to 110.degree. C. is reached in the final reaction vessel.

Process for producing calcium hydroxide

Hot processed bituminous mixed composition, particularly for road construction, characterized by containing non-hygroscopic, crystal water-containing substances, that upon heating to the mixing temperature of the mixed bituminous composition will completely or partly release their crystal water. The invention further relates to a filler as component of the mixed composition.

Bituminous mixed composition and filler for same containing

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Wulfrath, Germany

Friedrich Schmitz