公开(公告)号：US5188658A

公开(公告)日：1993-02-23

申请号：US628573

申请日：1990-12-14

Applicant: Jan A. Aune ,  Inger J. Eikeland ,  Thor Pedersen

Inventor： Jan A. Aune ,  Inger J. Eikeland ,  Thor Pedersen

IPC: C22B1/16 ,  C22B4/04 ,  C22B7/02 ,  C22B19/08 ,  C22B19/28 ,  F27D17/00

CPC classification number: C22B4/04 ,  C22B1/16 ,  C22B19/28 ,  C22B7/02 ,  Y02P10/212

Abstract: The present invention relates to a method for recovering zinc from zinc-containing materials, especially from zinc-containing materials recovered from waste gases in metallurgical smelting processes. Particulate zinc-containing materials are agglomerated together with a carbonaceous reduction material and optionally slag forming materials, and are supplied to a gas tight closed electrothermic smelting furnace containing a molten bath kept at a temperature between 1200.degree. and 1700.degree. C. in which the agglomerates are smelted and subjected to selective reduction and volatilization of zinc and other volatile metals. An inert slag phase and optionally a liquid metal phase are tapped from the smelting furnace, and zinc and other volatile metals are recovered from the waste gas from the smelting furnace by condensation. In order to prevent reoxidation of metallic zinc the particulate zinc-containing materials are agglomerated together with a carbonaceous binder which cracks at a temperature below 700.degree. C. and forms carbon black, and that the temperature in the gas atmosphere in the smelting furnace is kept above 1000.degree. C. in order to maintain a volume ratio between CO.sub.2 and CO in the gas atmosphere in the smelting furnaces below 0.3.

公开(公告)号：US4674728A

公开(公告)日：1987-06-23

申请号：US821400

申请日：1986-01-22

Applicant: Jan A. Aune ,  Per O. Nos

Inventor： Jan A. Aune ,  Per O. Nos

IPC: C21C5/52 ,  F27D9/00 ,  C21B7/10

CPC classification number: F27D9/00 ,  F27D1/12 ,  F28D15/0266 ,  F28D15/0275 ,  F28F3/12 ,  C21C5/5211 ,  Y02P10/216

Abstract: A sidewall for a metallurgical smelting furnace is disclosed. The sidewall is made from a refractory material; an evaporation cooling panel; and a convection cooling panel. The refractory material faces the interior of the furnace. A slot is formed between the evaporation cooling panel and the refractory material such that the convection cooling panel is positioned therebetween. The evaporation cooling panel and the convection cooling panel work together to cool the sidewall of the metallurgical smelting furnace.

Abstract translation: 公开了一种用于冶金熔炼炉的侧壁。 侧壁由耐火材料制成; 蒸发冷却面板; 和对流冷却板。 耐火材料面向炉内。 在蒸发冷却板和耐火材料之间形成槽，使得对流冷却板位于它们之间。 蒸发冷却面板和对流冷却面板一起工作，以冷却冶金冶炼炉的侧壁。

公开(公告)号：US4957551A

公开(公告)日：1990-09-18

申请号：US209492

申请日：1988-06-20

Applicant: Jan A. Aune ,  Thor Pedersen

Inventor： Jan A. Aune ,  Thor Pedersen

IPC: C21C5/38 ,  C22B7/02 ,  F27D17/00

CPC classification number: C22B7/02 ,  C21C5/38 ,  Y02P10/212 ,  Y10S75/961

Abstract: The method for treating the dust entails the following steps:(a) supplying a combination of dust, a reducing agent and flux to a gastight electrothermic smelting furnace,(b) smelting, reducing and volatilizing certain metals in the smelting furnace,(c) tapping of an inert slag phase and a liquid metal phase from the smelting furnace,(d) continuous removal from the smelting furnace of a gas phase containing chiefly CO-gas, metal fumes, sulphur, chlorides and fluorides together with entrained unreacted dust,(e) further treatment of the gas phase.The process produces an inert slag phase which can be safely deposited in a landfill. The process also allows for recovery of valuable metal components from the dust.

公开(公告)号：US5004496A

公开(公告)日：1991-04-02

申请号：US555653

申请日：1990-07-20

Applicant: Jan A. Aune ,  Thor Pedersen

Inventor： Jan A. Aune ,  Thor Pedersen

IPC: C21C5/38 ,  C22B7/02 ,  F27D17/00

CPC classification number: C22B7/02 ,  C21C5/38 ,  Y02P10/212 ,  Y10S75/961

Abstract: The method for treating the dust entails the following steps:(a) supplying a combination of dust, a reducing agent and flux to a gastight electrothermic smelting furnace,(b) smelting, reducing and volatilizing certain metals in the smelting furnace,(c) tapping of an inert slag phase and a liquid metal phase from the smelting furnace,(d) continuous removal from the smelting furnace of a gas phase containing chiefly CO-gas, metal fumes, sulphur, chlorides and fluorides together with entrained unreacted dust,(e) further treatment of the gas phase.The process produces an inert slag phase which can be safely deposited in a landfill. The process also allows for recovery of valuable metal components from the dust.

公开(公告)号：US4831943A

公开(公告)日：1989-05-23

申请号：US199243

申请日：1988-05-26

Applicant: Jan A. Aune

Inventor： Jan A. Aune

IPC: B09B3/00 ,  C22B7/02 ,  F23G5/00

CPC classification number: F23G5/006 ,  B09B3/005 ,  C22B7/02 ,  F23G2201/70 ,  F23G2202/104 ,  F23G2209/30 ,  Y02P10/212

Abstract: A method of treating ash and dust from incineration plants. The ash and dush are coprocessed by mixing one or more hazardous wastes and/or metallic scraps therewith. The mixture is supplied to a smelting furnace together with a reducing agent.

公开(公告)号：US06440193B1

公开(公告)日：2002-08-27

申请号：US09862192

申请日：2001-05-21

Applicant: Kai Johansen ,  Jan A. Aune

Inventor： Kai Johansen ,  Jan A. Aune

IPC: C22B2102

CPC classification number: C22B21/02 ,  C22B5/10 ,  C22B21/066

Abstract: The present invention relates to a process for carbothermic production of aluminum where molten bath aluminum carbide and aluminum oxide are produced in a low temperature compartment (2), and continuously flow into a high temperature compartment (3) where the aluminum carbide is reacted with alumina to produce a top aluminum layer (31), where the aluminum layer (31) forms a layer on the top of a molten slag layer and is tapped from the high temperature compartment (3) at outlet (5), and where off-gases from the two compartments are treated in reactors fed by one or more columns (9, 19). According to the invention the low temperature compartment (2) and the high temperature compartment (3) are located in a common reaction vessel (1) where the low temperature compartment is separated from the high temperature compartment by an underflow partition wall (4). The present invention also includes precipitating and filtering aluminum carbide from the tapped molten aluminum, followed by degassing and casting to form aluminum shapes such as ingots (62). The present invention further relates to a reactor for production of aluminum by carbothermic reduction of aluminum.

Abstract translation: 本发明涉及在低温室（2）中制造熔融铝碳化铝和氧化铝的铝的碳热还原生产方法，并且连续地流入高温室（3），其中碳化铝与氧化铝反应 以产生顶部铝层（31），其中铝层（31）在熔渣层的顶部形成一层，并在出口（5）处从高温隔室（3）中抽出，并且在废气 来自两个隔室的反应器在由一个或多个塔（9,19）进料的反应器中进行处理。 根据本发明，低温室（2）和高温隔室（3）位于公共反应容器（1）中，其中低温隔室通过下溢分隔壁（4）与高温隔室分离。 本发明还包括从轻敲的熔融铝中沉淀和过滤碳化铝，然后进行脱气和铸造以形成诸如锭（62）的铝形状。 本发明还涉及通过碳热还原铝生产铝的反应器。

公开(公告)号：US5196047A

公开(公告)日：1993-03-23

申请号：US791961

申请日：1991-11-13

Applicant: Jan A. Aune

Inventor： Jan A. Aune

IPC: C22B5/04 ,  C22B5/16 ,  C22B7/02 ,  C22B7/04 ,  C22B19/12

CPC classification number: C22B7/02 ,  C22B19/12 ,  C22B5/04 ,  C22B5/16 ,  C22B7/04 ,  Y02P10/214 ,  Y02P10/22 ,  Y02P10/224 ,  Y02P10/232

Abstract: The present invention relates to a method for treatment of zinc-containing by-products and waste materials from primary and secondary production of nonferrous metals and especially zinc- and leadcontaining slags from the production of lead. The by-products and the waste materials are supplied to a gastight closed electric smelting furnace in which the materials are melted and subjected to a selective metallothermic reduction in order to reduce and volatilize zinc and other volatile metals. Elemental sulphur and/or sulphur compounds are added to the smelting furnace in an amount sufficient to form a sulphide phase containing one or more of the elements Cu, Ni, Pb, As, Bi, Sb and Ag. An inert slag phase and the sulphide phase are tapped from the furnace, and zinc and other volatile metals are recovered from the off-gas from the furnace by condensation.

公开(公告)号：US4593886A

公开(公告)日：1986-06-10

申请号：US662996

申请日：1984-10-19

Applicant: Jan A. Aune ,  Knut Evensen

Inventor： Jan A. Aune ,  Knut Evensen

IPC: C22B5/02 ,  C22B7/04 ,  C22B9/10 ,  F27D3/14

CPC classification number: F27D3/14 ,  C22B5/02 ,  C22B7/04 ,  C22B9/106 ,  Y02P10/212

Abstract: The present invention relates to a method and a means for charging liquid slag to a closed smelting furnace. The means for charging liquid slag comprises a double walled tube extending through an opening in the furnace roof, said tube being connected to means for raising and lowering the tube relatively to the furnace roof. Means for gas tight sealing are provided between the furnace roof and the double walled tube. A funnel shaped part is secured to the upper end of the tube, said funnel shaped part being equipped with a closeable lid for gas tight closing of the funnel shaped part. For charging of liquid slag to the furnace the tube is lowered down into the furnace to such an extent that the lower end of the tube is under the slag level in the furnace, whereafter the lid is opened and liquid slag is charged into the furnace. When charging of liquid slag is finished, the lid is closed and the tube is raised to such an extent that the lower end of the tube is above the slag level in the furnace. For cooling the tube a cooling medium with a boiling point below the slag temperature in the furnace is provided between the double walls of the tube. The cooling media will start to evaporate when the lower end of the tube is under the slag level in the furnace. The vapor is condensed in the funnel shaped part and condensed cooling medium is returned.

Abstract translation: 本发明涉及一种将液态炉渣装入封闭冶炼炉的方法和装置。 用于装入炉渣的装置包括延伸穿过炉顶中的开口的双壁管，所述管连接到相对于炉顶升高和降低管的装置。 在炉顶和双壁管之间设置气密封装置。 漏斗形部分被固定到管的上端，所述漏斗形部分配备有用于气密封闭漏斗形部分的可关闭盖。 为了将炉渣装入炉中，将管子下降到炉中，使炉管的下端处于炉内的炉渣水平之下，然后打开盖子，将液体炉渣装入炉中。 当液体炉渣装料完成时，盖子被关闭，并且管子被升高到使得管子的下端高于炉子中的炉渣水平的程度。 为了冷却管，在管的双壁之间设置沸点低于熔炉炉渣温度的冷却介质。 当管的下端处于炉内的炉渣水平时，冷却介质将开始蒸发。 蒸汽在漏斗形部分中冷凝，冷凝的冷却介质返回。