Activation method of blast furnace slag, activated blast furnace slag and application of activated blast furnace slag

• Main Author: LUO PEIQIANG
• Format: Patent
• Language: Chinese; English
• Published: 04.07.2023
• Subjects: CHEMISTRY; DISPOSAL OF SOLID WASTE; FERTILISERS; FERTILISERS CHARACTERISED BY THEIR FORM; MANUFACTURE THEREOF; METALLURGY; MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENTSUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVINGA SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES,SOIL-CONDITIONERS, WETTING AGENTS; PERFORMING OPERATIONS; RECLAMATION OF CONTAMINED SOIL SOIL; TRANSPORTING

The invention relates to the field of blast furnace slag resource utilization, in particular to an activation method of blast furnace slag, activated blast furnace slag and application of the activated blast furnace slag. The activation method of the high-titanium blast furnace slag comprises the following steps: S1, drying: preparing to-be-activated high-titanium blast furnace slag, and drying the blast furnace slag; s2, activating: activating the dried blast furnace slag under microwaves; and S3, grinding: grinding the activated blast furnace slag to obtain the activated blast furnace slag. The activated blast furnace slag is prepared on the basis of the activation method, and the activated blast furnace slag is applied to be compounded with nutrient soil to prepare a compound fertilizer. According to the activation method of the high-titanium blast furnace slag, microwave high-temperature activation is adopted, titanium, phosphorus, sodium, potassium, calcium and magnesium in the blast furnace slag with hi