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    • 3. 发明申请
    • METHOD AND EQUIPMENT FOR TREATING PROCESS GAS
    • 用于处理工艺气体的方法和设备
    • WO2007113375A1
    • 2007-10-11
    • PCT/FI2007/000081
    • 2007-04-02
    • OUTOTEC OYJ.SAARINEN, Risto
    • SAARINEN, Risto
    • C22B15/00B01D51/10F23J15/00F27D17/00
    • F23J15/02C22B15/0047C22B15/0097F23J15/003F23J2215/20F27D17/008
    • The invention relates to a method for treating solids-containing process gas (7) in a suspension smelting furnace (1), comprising directing the process gas from the reaction shaft (2) of the suspension smelting furnace to a lower furnace (3) and, further, through a raised shaft (4) to a waste heat boiler (6) to cool the process gas, whereby, through one or more gas nozzles (8) placed on the lower furnace top wall (12), oxidizing gas (9) is fed into the process gas (7) flowing in the lower furnace (3), whereby the amount of oxidizing gas is adjusted during the process so that the amount of sulphides contained in the solid matter of the process gas that is directed to the waste heat boiler (6) is minimized. The invention also relates to the equipment.
    • 本发明涉及一种用于处理悬浮冶炼炉(1)中含固体的工艺气体(7)的方法,包括将处理气体从悬浮熔炼炉的反应轴(2)引导到下炉(3)和 进一步通过升高的轴(4)到废热锅炉(6)以冷却处理气体,由此通过放置在下炉顶壁(12)上的一个或多个气体喷嘴(8),氧化气体(9) )被供给到在下炉(3)中流动的工艺气体(7)中,由此在该过程中调节氧化气体的量,使得包含在处理气体的固体物质中的硫化物的量被引导到 废热锅炉(6)最小化。 本发明还涉及该设备。
    • 6. 发明申请
    • NEW IN SITU DESULFURIZATION SCRUBBING PROCESS FOR REFINING BLISTER COPPER
    • 新型脱硫硫化铜精炼清洗工艺
    • WO2002075006A2
    • 2002-09-26
    • PCT/CA2002/000336
    • 2002-03-08
    • NORANDA INC.
    • ZAMALLOA, ManuelTREMBLAY, YvanCOURSOL, PascalCARISSIMI, Eva
    • C22B
    • C22B15/0097C22B15/0028C22B15/006
    • A novel process for refining high or low impurity blister copper containing S, As, Sb, Pb, Ni, Bi, Se, and/or Te to anode quality by means of a solution containing sulphates and alkali oxides is provided. More specifically, the process comprises the steps of (1) injecting air/O 2 gas mixtures in the presence of an alkali source, over a period of time sufficient to complete the sulphur removal stage, with the innovation of removing the SO 2 in situ, thereby forming an effective amount of a molten alkali sulphate on top of the copper bath, the temperature in the bath being maintained between 1100-1300°C; (2) adding and/or injecting molten or solid alkali sulphates together with basic oxides or carbonates into the copper bath to promote the in situ scrubbing of As and Sb into a solution containing sulphates, while the dissolved oxygen in copper increases from 0.1 to 0.6 wt%; (3) increasing the level of oxygen in the copper to remove the remaining impurities into a molten solution of Cu 2 O and/or Cu 2 O-CaO, while the molten sulphate and oxide phases co-exist as two immiscible liquid layers of slag; and (4) skimming both the sulphate and oxide slag layers prior to commencing de-oxidation.
    • 提供了一种通过含有硫酸盐和碱金属氧化物的溶液将含有S,As,Sb,Pb,Ni,Bi,Se和/或Te的高或低杂质泡罩铜精制成阳极质量的新方法。 更具体地,该方法包括以下步骤:(1)在碱源存在下,在足以完成除硫阶段的时间内喷射空气/ O 2气体混合物,同时创新地将SO 2原位除去,从而 在铜浴的顶部形成有效量的熔融硫酸盐,浴中的温度保持在1100-1300℃之间; (2)将熔融或固体碱性硫酸盐与碱性氧化物或碳酸盐一起添加和/或注入铜浴中以促进将As和Sb原位洗涤成含有硫酸盐的溶液,而铜中的溶解氧从0.1增加至0.6 %(重量); (3)提高铜中的氧含量以将剩余的杂质除去Cu2O和/或Cu2O-CaO的熔融溶液,而熔融硫酸盐和氧化物相共存作为两个不混溶的熔渣液层; 和(4)在开始去氧化之前撇取硫酸盐和氧化物渣层。