Abstract:In order to achieve rapid and deep desulphurization, the desulphurization experiments in laboratory were carried out using Al ash to substitute for Al2O3 in refining slag. Results show that Al ash, as a desulphurizing agent, has a good effect; the sulphur content in pipeline steel decreases from 0.0050% to 0.0020%. Contrast to different kinds of Al ash desulphurization agents, the desulphurization ability in turn is as followings: electrolytic Al ash without fluorine, selfprepared slag in lab, premelted electrolytic Al ash, electrolytic Al ash, molten Al ash being premelted and molten Al ash, the corresponding value is 63.3%, 57.4%, 55.7%, 53.7%, 52.8%and 46.3%. For above desulphurization agents, the electrolytic Al ash without fluorine has the best effect and CaF2 flux can be saved by adding it into refining slag.
王德永,刘承军,闵义,于赋志,姜茂发. 铝灰在管线钢脱硫中的作用[J]. 中国冶金, 2007, 17(2): 14-14.
WANG Deyong,LIU Chengjun,MIN Yi,YU Fuzhi,JIANG Maofa. Effect of Al Ash on Desulphurization of Pipeline Steel. China Metallurgy, 2007, 17(2): 14-14.