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AssigneeMannesmann Aktiengesellschaft
InventorsWerner Siegmund, deceased, Wilhelm Kamereit, Oskar M. Schmitt, Volker Weidmann, Otto J. Friedrich
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Preparation of a fine-grained mixture having hydrophobic properties and a grain size substantially less than 0.2 mm and preferable less than 0.1 mm for asphalt-treatment and de-icing, having a hydrophobic component with a hydrophilic component of at least 50% by weight of the mixture and having 55-99.5% by weight of a residual salt which results from the production of glycerol and 45-0.05% by weight of an additive consisting of salts, oxides, hydoxides, and combinations thereof, in the moist condition and at least partially ground with the residual salt, and containing alkali-earth metal or other non-alkali metals as cations.
A method of forming a fine-grained hydrophobic mixture having a grain size less than 0.2 mm, comprising mixing or grinding in an amount of at least 50% by weight of the fine-grained hydrophobic mixture and a hydrophilic component with a hydrophobic component, said hydrophilic component comprising a mixture of 55-99.5% by weight of the hydrophilic component of a residual salt resulting from a separation of spent lye from glycerol produced during soap production and 45-0.5% by weight of the hydrophilic component of an additive selected from the group consisting of salts, oxides and hydroxides, and combinations thereof of alkali-earth metals and non-alkali metals, said additive being at least partially ground and having a moisture content which results in a free-flowing granulate after mixing.
A fine-grained hydrophobic mixture having a grain size less than 0.2 mm, comprising a mixture of 80% by weight of said fine-grained hydrophobic mixture of a mixture of 55-99.5% by weight of a residual salt resulting from a separation of spent lye from glycerol produced during soap production and 45-0.5% by weight of flue-gas gypsum having a moisture content which results in a free-flowing granulate after mixing, a hydrophobic component consisting of powdered foamed polyurethane resin in an amount of 10% by weight of said fine-grained hydrophobic mixture and solid lava and solid lava powder in an amount of 10% by weight of said fine-grained hydrophobic mixture.
A fine-grained hydrophobic mixture having a grain size less than 0.2 mm, comprising a mixture of 80% by weight of said fine-grained hydrophobic mixture a mixture of 55-99.5% by weight of a residual salt resulting from a separation of spent lye from glycerol produced during soap production and 45-0.5% by weight of flue-gas gypsum having a moisture content which results in a free-flowing granulate after mixing, a hydrophobic component consisting of powdered foamed polyurethane resin in an amount of 10% by weight of said fine-grained hydrophobic mixture, solid lava powder in an amount of 6% by weight of said fine-grained hydrophobic mixture and carbon black in an amount of 4% by weight of said fine-grained hydrophobic mixture.
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