Method of preparing molten steel refining agent by using industrial solid waste FCC catalyst
A technology of industrial solid waste and catalyst, which is applied in the field of preparing molten steel refining agent by using industrial solid waste FCC catalyst, which can solve pollution and other problems, and achieve the effects of avoiding environmental pollution, good effect and simple production process
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Embodiment 1
[0032] The method for preparing premelted refining agent by utilizing industrial solid waste FCC catalyst comprises the following steps:
[0033] (1) Industrial solid waste FCC catalyst and lime powder are made into powder respectively;
[0034] (2) Take the powder according to the mass ratio of industrial solid waste FCC catalyst and lime powder at 40:60, then add magnesia with a total mass of 4%-8% of the aforementioned powder, mix the materials evenly, add them to the electric arc furnace, and Melting and refining at a high temperature of 1600°C, the content of CaO in the obtained mixed material is 54-58wt%, Al 2 o 3 The content is 20-23wt%, SiO 2 The content of is 14-15wt%;
[0035] (3) natural cooling and solidification at room temperature after melting out of the furnace to obtain block material;
[0036] (4) Crushing and forming the block material, and after crushing, a pre-melted refining agent with a particle size of not more than 60 mm can be obtained.
[0037] ...
Embodiment 2
[0039] The method for preparing premelted refining agent by utilizing industrial solid waste FCC catalyst comprises the following steps:
[0040] (1) Industrial solid waste FCC catalyst and lime powder are made into powder respectively;
[0041] (2) Take the powder according to the mass ratio of industrial solid waste FCC catalyst, lime powder and high alumina bauxite at 20:60:20, then add magnesia and 5% magnesia and 5% of the total mass of the powder Stone, mix the materials evenly, put them into the electric arc furnace, melt and refine them at a high temperature of 1600°C, the content of CaO in the obtained mixture is 54-58wt%, Al 2 o 3 The content is 30-32wt%, SiO 2 The content is 7-8wt%;
[0042] (3) natural cooling and solidification at room temperature after melting out of the furnace to obtain block material;
[0043] (4) Crushing and forming the block material, and after crushing, a pre-melted refining agent with a particle size of not more than 60 mm can be obta...
Embodiment 3
[0046] Utilize the method for preparing cold consolidation refining agent by industrial solid waste FCC catalyst, comprising the following steps:
[0047] (1) Industrial solid waste FCC catalyst and lime powder are made into powder respectively;
[0048] (2) according to the mass ratio of industrial solid waste FCC catalyst and lime powder, it is 40:60 to take the powder, then add the magnesia of the aforementioned powder gross mass 4%-8%, carry out mechanical mixing, obtain the mixed powder, and obtain The content of CaO in the mixed material is 54-58wt%, Al 2 o 3 The content is 20-23wt%, SiO 2 The content of is 14-15wt%;
[0049] (3) take by weighing the methyl cellulose of waste FCC catalyst and lime powder gross mass 2% again as binding agent, then mix with described mixing powder;
[0050] (4) The above-mentioned mixed materials are pelletized, and finally dried at 200°C to obtain a cold-consolidated refining agent.
[0051] The refining agent prepared in this exampl...
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