公开(公告)号：US20090293678A1

公开(公告)日：2009-12-03

申请号：US12432598

申请日：2009-04-29

Applicant: Tatsuya MOTOMURA ,  Yoshiaki SUZUKI ,  Masaharu TAKAHASHI ,  Mitsumasa HOSHI

Inventor： Tatsuya MOTOMURA ,  Yoshiaki SUZUKI ,  Masaharu TAKAHASHI ,  Mitsumasa HOSHI

IPC: C22B15/00

CPC classification number: C22B15/0047 ,  C22B5/04 ,  C22B15/0052 ,  C22B15/0054

Abstract: A copper smelting method includes: supplying an oxygen-enriched gas, a solvent, and a copper concentrate into a furnace, while not supplying a coke material; and supplying pig iron to slag that is generated in the furnace.

Abstract translation: 铜熔炼方法包括：在不供应焦炭材料的同时将富氧气体，溶剂和铜精矿供应到炉中; 并将生铁供应到在炉中产生的炉渣。

公开(公告)号：US08382879B2

公开(公告)日：2013-02-26

申请号：US12432598

申请日：2009-04-29

Applicant: Tatsuya Motomura ,  Yoshiaki Suzuki ,  Masaharu Takahashi ,  Mitsumasa Hoshi

Inventor： Tatsuya Motomura ,  Yoshiaki Suzuki ,  Masaharu Takahashi ,  Mitsumasa Hoshi

IPC: C22B15/14 ,  C22B7/04

CPC classification number: C22B15/0047 ,  C22B5/04 ,  C22B15/0052 ,  C22B15/0054

Abstract: A copper smelting method includes: supplying an oxygen-enriched gas, a solvent, and a copper concentrate into a furnace, while not supplying a coke material; and supplying pig iron to slag that is generated in the furnace.

Abstract translation: 铜熔炼方法包括：在不供应焦炭材料的同时将富氧气体，溶剂和铜精矿供应到炉中; 并将生铁供应到在炉中产生的炉渣。

公开(公告)号：US06436169B1

公开(公告)日：2002-08-20

申请号：US09799265

申请日：2001-03-05

Applicant: Yushiro Hirai ,  Mitsumasa Hoshi

Inventor： Yushiro Hirai ,  Mitsumasa Hoshi

IPC: C22B704

Abstract: In a method of operating a copper smelting furnace, wherein a ferrous substance containing more than 80 wt. % metallic iron having a specific gravity of 3.0-8.0 and particle diameter of 0.3-15 mm is added to copper smelting slag containing Fe having an oxidation-reduction number of 3+ and to the Fe3O4 in the intermediate layer, thereby deoxidizing the Fe3O4 to FeO, the method reduces the Fe3O4 within the slag layer and the Fe3O4 generated in the intermediate layer between the slag layer and the matte layer. So that their viscosity is reduced and separation rate is increased, thus increasing the yield rate of useful metal, and the problems that originate in the intermediate layer are eliminated.