Experimental Study on Desulfurization Performance of 12CaO·7Al2O3 Premelted Refining Slag
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摘要: 在实验室条件下,对预熔精炼渣12CaO·7Al2O3的预熔工艺和脱硫能力进行了研究。结果表明:12CaO·7Al2O3预熔精炼渣能实现较好的脱硫效果,在1 600℃,加入量为3%的条件下,能将钢液中的硫由0.048%降低到0.020%,脱硫率58.33%。并且在12CaO·7Al2O3精炼渣中配加适量石灰,可进一步提高其脱硫能力,尤其适用于铝脱氧钢。
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关键词:
- 炉外精炼 /
- 预熔精炼渣 /
- 12CaO·7Al2O3 /
- 脱硫
Abstract: In the laboratory, premelting technology and desulphurization ability of premelted refining slag of 12CaO·7Al2O3 were studied.The results show that premelted refining slag of 12CaO·7Al2O3 can acquire better desulphurization effect.It can decrease the S-content from 0.048% to 0.020% with 3% premelted refining slag at 1 600 ℃, which makes the desulphurization ratio attainability 58.33%.Its desulphurization ability is to be highly improved by adding a lot of lime in premelted refining slag of 12CaO·7Al2O3, especially it fits to Al-deoxidization steel desulphurization.-
Key words:
- secondary refining /
- premelted refining slag /
- 12CaO·7Al2O3 /
- desulphurization
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