Process for manufacturing a soil treatment composition, soil treatment compositions and use of such compositions
AssigneesMecaroute, European Steel Mill Services
InventorsJean-Yves Bompay, Jean-Michel Prunevieille, Kenneth Wright
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Abstract
The present invention relates to a process for manufacturing a soil treatment composition, to soil treatment compositions and to the use of such compositions. The process according to the invention comprises a step of selecting one or more slags having a predetermined free lime content of greater than or equal to a first threshold value, a step (B1) of adding free lime to the slag or slags and a step of grinding the slag or slags in order to obtain a soil treatment composition having a predetermined free lime content of greater than or equal to a second value.
Claims12
A process for manufacturing a soil treatment composition, which comprises:
- a step of selecting one or more slags having a free lime content of greater than or equal to a first threshold value of 5% by weight,
- a step of adding free lime to the slag or slags according to the free lime content of the slag or slags, and
- a step of grinding the slag or slags in order to obtain a soil treatment composition having a free lime content of greater than or equal to a second value of 15% by weight.
A soil treatment composition comprising an intimate mixture of one or more ground slags having a free lime content of greater than or equal to 5% by weight and free lime;
- said mixture having a free lime content of greater than 15% by weight.
A soil treatment composition comprising one or more ground slags having a free lime content of greater than 18% by weight.
Dependencies are inferred from the claim text.