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Patents

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杨慧芬,景丽丽,王静静,忤晓丹,党春阁. 一种提钒尾渣深度还原直接生产海绵铁的工艺方法，专利号：ZL 2009 1 0235546.4

Release time:2022-04-03 Hits:

Service Invention or Not:  no

Pre One:孙体昌,杨慧芬,祁超英（武钢）,王化军,杨大伟,徐承焱. 一种用高鳞鲕状赤铁矿直接生产海绵铁的工艺方法. CN200910079152.4 Next One:杨慧芬、王智凡，硫酸渣提取铁精矿新工艺， 授权

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