Basic oxygen furnace slag treatment method
OwnerKun-Liang Honginventor
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Abstract
A basic oxygen furnace slag treatment method includes the steps of mixing basic oxygen furnace slag with an active aqueous solution and then keeping the mixture thus obtained under an enclosed environment for reaction and then employing a solid-liquid separation procedure to separate solid phase from liquid phase. Since basic oxygen furnace slag has strong alkaline, the method of the invention overcomes the problem that directly discharging basic oxygen furnace slag will cause environmental pollutions. The basic oxygen furnace slag treatment method avoids a secondary pollution, and can turn waste into treasure, bringing a number of economic benefits.
Claims10
A basic oxygen furnace slag treatment method, comprising the steps of:
- i) mixing basic oxygen furnace slag with one of active aqueous solution A and active aqueous solution B uniformly to form a mixture;
- ii) keeping the mixture thus obtained under an enclosed environment for reaction for 0.2-5 hours;
- and
- iii) employing a solid-liquid separation procedure to said mixture to separate solid phase from liquid phase;
- wherein said active aqueous solution A has a pH value of 1-2, and is obtained by treating carbonic acid aqueous solution aqueous solution through an electrocatalytic water equipment;
- said active aqueous solution B has a pH value of 5-7, and is obtained by treating carbonic acid aqueous solution through said electrocatalytic water equipment;
- the mass ratio between said basic oxygen furnace slag and said active aqueous solution A/said active aqueous solution B is 1:(0.5-10).
Dependencies are inferred from the claim text.