发明名称 |
METHOD FOR PRODUCTION OF BLISTER COPPER |
摘要 |
The invention relates to a method to produce blister copper or high grade matte in a smelting reactor directly from a sulfidic copper concentrate containing material and/or finely ground copper matte, whereby oxygen-containing gas, copper concentrate and/or finely ground copper matte are fed into the reactor. According to the invention CaO and SiO2 containing flux is fed into the smelting reactor along with oxygen-containing gas, copper concentrate and/or copper matte, and part of the copper in the concentrate and/or in the matte is oxidized in order to form a slag in which the CaO/SiO2 ratio is higher than 1.5, and in which the copper content is in oxidized form and in which the lime content calculated in a CaO+SiO2+FeOx=100 system is higher than 20 %.
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申请公布号 |
EA005386(B1) |
申请公布日期 |
2005.02.24 |
申请号 |
EA20040000266 |
申请日期 |
2002.09.20 |
申请人 |
OUTOKUMPU OYJ |
发明人 |
KOJO, JLKKA;HANNIALA, PEKKA;CABALLERO DERAMOND, CARLOS;ACUNA ROJAS, CESAR |
分类号 |
C22B9/10;C22B15/00;C22B15/14;(IPC1-7):C22B15/00 |
主分类号 |
C22B9/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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