公开(公告)号：US4084959A

公开(公告)日：1978-04-18

申请号：US750722

申请日：1976-12-15

申请人： Satomi Yamamoto ,  Masataka Yoshii ,  Teruo Matsuo ,  Teruo Yokoozi

发明人： Satomi Yamamoto ,  Masataka Yoshii ,  Teruo Matsuo ,  Teruo Yokoozi

IPC分类号： C21C1/02 ,  C21C7/02

CPC分类号： C21C1/02 ,  Y10S75/957

摘要： A molten iron is continuously refined in a refining vessel of a closed type using a flux composed chiefly of an alkali metal compound so as to decrease the content of P and S to a low level. The alkali metal compound is recovered from the evaporating material and slag generated in the refining and is again used in the refining, while such valuable elements as P, V, etc. may be recovered.The molten iron thus refined can be converted into a steel of high quality in a known oxygen steel making furnace substantially by means of decarburization only and without the use of any flux or with a slight amount thereof.The practice of this invention makes it possible to substantially obviate a substance to be discarded or rejected in the steel making process.

摘要翻译： 使用主要由碱金属化合物组成的助熔剂，在密闭型精炼容器中连续精炼铁水，以将P和S的含量降低到低水平。 从蒸发材料中回收碱金属化合物和在精炼中产生的炉渣，并再次用于精炼中，而可以回收P，V等有价值的元素。