专利名称：A SMELTING PROCESS OF FERRONICKEL
WITH NICKEL OXIDE ORE FREE OF CRYSTALWATER IN A BLAST FURNACE
发明人：Liu, Shenjie申请号：EP05803616.1申请日：20051102公开号：EP1927667B1公开日：20130619
摘要：The present invention provides a metallurgical method of ferronickel by blast-furnace smelting nickel oxide ore containing no crystal water which mainly comprises thestep of crushing and sieving the raw ore, manufacturing the ore powder into sintered oreand blast furnace smelting mixture of sintered ore blocks, coke, limestone/calcium lime,dolomite as well as fluorite to obtain the ferronickel, wherein the weight ratio of theadditives to sintered ore is: 0.3 ~ 8% fluorite, 0 ~ 8% dolomite, 4~35% limestone/calciumlime. Compared with the prior art, the proportion of fluorite and sintered ore in themetallurgical technology of ferronickel provided by the present invention can lower theeffect of chrome on the furnace temperature, meanwhile can also avoid occurring ofaccidents, such as burnout of crucible caused by too high content of Fluorine; Magnesiumcontained in dolomite may solve the problem on bad fluidity of iron water caused bychrome in nickel and chrome ores; limestone can not only provide alkalinity but balanceboth of the above mentioned additives. The metallurgical method of blast furnacesmelting provided by the present invention has advantages such as low cost and highrecovery rate of the raw materials.
申请人：LIU SHENJIE
地址：CN
国籍：CN
代理机构：Gervasi, Gemma
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