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公开(公告)号：US08101007B2
公开(公告)日：2012-01-24
申请号：US12670942
申请日：2008-07-24
CPC分类号： C22B7/02 , B30B9/328 , C21B13/0046 , C21B13/006 , C21B13/0066 , C21B13/105 , C21B2200/00 , C21C5/38 , C22B1/245 , C22B1/248 , C22B5/10 , C22B5/16 , C22B19/28 , C22B19/34 , C22B19/38 , Y02P10/216
摘要： The method includes the steps of: adding a carbonaceous material B and a binder C, and optionally water, to electric furnace dust A generated in a steelmaking electric furnace 1, to form a powdery mixture D having a water content of 0.5 to 3 mass %; compacting the powdery mixture D into a raw briquette E; and charging the raw briquette without drying into a rotary hearth furnace 5 and thermally reducing the raw briquette to obtain a reduced iron briquette F and a crude zinc oxide G.
摘要翻译： 该方法包括以下步骤：将含碳材料B和粘合剂C以及任选的水添加到炼钢电炉1中产生的电炉灰A中，以形成水含量为0.5-3质量％的粉末混合物D， ; 将粉状混合物D压实成生坯B; 并将原料团块不加干燥并装入转底炉5中并热还原生坯团块以获得还原铁团块F和粗氧化锌G.
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3.发明授权
公开(公告)号：US6083295A
公开(公告)日：2000-07-04
申请号：US68413
申请日：1998-07-16
申请人： Allan Douglas Clark
发明人： Allan Douglas Clark
IPC分类号： C22B1/00 , C22B1/16 , C22B1/216 , C22B1/24 , C22B5/16 , C22B7/02 , C22B19/38 , C21B11/06 , C22B19/00
CPC分类号： C22B1/2413 , C22B1/216 , C22B19/38 , C22B5/16 , C22B7/02 , Y02P10/216
摘要： Finely divided material, such as flue dust from a steel making furnace, is processed to reclaim constituents. The material in hopper (11) is pelletized. The pellets are dried in a dryer (16) and fed to a first rotary kiln (21) where they are sintered to provide very hard pellets, during which process volatile constituents are driven off and collected. The sintered pellets are screened to remove finely divided material and fed with reductant, such as finely divided washed anthracite (35), to a second rotary kiln (31). Reduction of the pellets causes a second constituent to be driven off and the second constituent is then oxidized in the kiln and collected as finely divided oxide. The original pellets retain their integrity and become essentially sponge iron.
摘要翻译： PCT No.PCT / GB96 / 02785第 371日期：1998年7月16日 102（e）日期1998年7月16日PCT 1996年11月12日PCT PCT。 WO97 / 18338 PCT公开号 日期1997年5月22日将炼钢炉的烟尘等细分材料加工成回收成分。 料斗（11）中的材料被造粒。 颗粒在干燥器（16）中干燥并进料到第一回转窑（21），在那里它们被烧结以提供非常硬的颗粒，在此过程中挥发性组分被排出并收集。 筛选烧结的颗粒以除去细碎的材料，并将还原剂（例如细碎的洗涤的无烟煤（35））进料到第二回转窑（31）。 颗粒的还原导致第二组分被排出，然后第二组分在窑中被氧化并以细分的氧化物的形式收集。 原始颗粒保持其完整性并且基本上成为海绵铁。
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公开(公告)号：US20050284261A1
公开(公告)日：2005-12-29
申请号：US11126342
申请日：2005-05-11
申请人： Olof Sandberg
发明人： Olof Sandberg
CPC分类号： C22B7/003 , C22B1/216 , C22B15/0056 , C22B19/30 , C22B19/38 , F27B7/2083 , Y02P10/214 , Y02P10/22 , Y02P10/232 , Y02P10/234
摘要： A process for batchwise working-up valuable metals containing recycling materials having a content of organic constituents so high that its use as smelting materials in conventional metal smelting processes is not suitably or even possible. The material is charged to a tiltable reactor rotatable along its own longitudinal axis having a common opening for charging and emptying. The material is heated to a temperature promoting the expulsion of organic constituents by pyrolys and/or combustion. The material consists at least to an essential part of such size fractions that admits a continuous charging during operation. The process is characterized in that said material during operation is charged continuously in an adjustable stream being controlled and/or adjusted by means of running measurements of different process variables so that the flow and composition of the combustible gas and the heat release is kept under control. A worked-up product substantially free from any organic substance is withdrawn from the reactor and is added to a conventional metal smelting process. The material is suitably supplied during operation by means of a charging equipment provided against or down through the single opening of the reactor by means of gravity and/or a pneumatic transport gas.
摘要翻译： 分批处理含有有机成分含量高的再循环材料的贵重金属的方法，使得其在常规金属熔炼方法中作为冶炼材料的用途不合适或甚至不可行。 该材料被装载到可沿其自身的纵向轴线旋转的可倾斜反应器，该反应器具有用于充电和排空的公共开口。 将该材料加热至通过热解和/或燃烧促进有机成分的排出的温度。 该材料至少包括在运行期间允许连续充电的这种尺寸部分的主要部分。 该方法的特征在于，操作期间的所述材料以可调整的流量连续地进行加载，其通过不同工艺变量的运行测量来控制和/或调节，使得可燃气体和热释放的流动和组成保持在控制之下 。 将基本上不含任何有机物质的后处理产品从反应器中取出并加入常规的金属冶炼工艺中。 该材料在操作期间通过借助于重力和/或气动输送气体抵抗或向下通过反应器的单个开口而设置的装料设备适当地供给。
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公开(公告)号：US5585079A
公开(公告)日：1996-12-17
申请号：US447834
申请日：1995-05-23
申请人： Sigmund P. Fugleberg
发明人： Sigmund P. Fugleberg
IPC分类号： C22B19/00 , C01G9/00 , C01G9/02 , C01G49/00 , C22B20060101 , C22B3/04 , C22B3/06 , C22B19/20 , C22B19/28 , C22B19/38
CPC分类号： C22B19/38 , C22B19/22 , C22B19/28 , Y02P10/234
摘要： The invention relates to a method for recovering zinc from a zinc oxide bearing material containing silicates. According to the method, the leaching of zinc compounds is carried out in circumstances where the silicates remain undissolved and consequently do not cause filtering problems. The silicate bearing residue is treated in a Waelz process, so that the major part of the silicic acid contained in the silicates is combined in the iron silicate slag formed in the Waelz process, and the zinc is returned into leaching mainly in oxidic form.
摘要翻译： 本发明涉及从含硅酸盐的含氧化锌轴承材料中回收锌的方法。 根据该方法，锌化合物的浸出是在硅酸盐不溶解的情况下进行的，因此不会引起过滤问题。 硅酸盐轴承残留物以Waelz工艺处理，使得硅酸盐中所含的硅酸的主要部分与Waelz工艺中形成的铁硅酸盐熔渣相结合，锌以主要的氧化形态返回浸出。
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公开(公告)号：US2310471A
公开(公告)日：1943-02-09
申请号：US34927440
申请日：1940-08-01
申请人： NEW JERSEY ZINC CO
发明人： STECKEL ERNEST W , MAHLER GEORGE T
IPC分类号： C22B19/38
CPC分类号： C22B19/38
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公开(公告)号：US12018345B2
公开(公告)日：2024-06-25
申请号：US17539728
申请日：2021-12-01
摘要： A pyro-metallurgical process for producing a non-ferrous metal or a compound thereof, wherein a metal raw material is fed into a rotary kiln, the metal being one of arsenic (As), antimony (Sb), lead (Pb), cadmium (Cd), mercury (Hg), silver (Ag), tin (Sn), nickel (Ni), or zinc (Zn). The raw material is heated to produce a volatized material, in which the non-ferrous metal or compound thereof is produced from the volatized material. A magnesium-based additive is additionally fed to the rotary kiln in an amount of between 0.5 wt. % and 9.5 wt. % relative to the total weight of the raw material. The magnesium-based additive is heated together with the raw material to produce the volatized material and a solid product while also counteracting ring formation in the rotary kiln.
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公开(公告)号：US08435323B2
公开(公告)日：2013-05-07
申请号：US11126342
申请日：2005-05-11
申请人： Olof Sandberg
发明人： Olof Sandberg
CPC分类号： C22B7/003 , C22B1/216 , C22B15/0056 , C22B19/30 , C22B19/38 , F27B7/2083 , Y02P10/214 , Y02P10/22 , Y02P10/232 , Y02P10/234
摘要： A process for batchwise working-up valuable metals containing recycling materials having a content of organic constituents so high that its use as smelting materials in conventional metal smelting processes is not suitably or even possible. The material is charged to a tiltable reactor rotatable along its own longitudinal axis having a common opening for charging and emptying. The material is heated to a temperature promoting the expulsion of organic constituents by pyrolysis and/or combustion. The material consists at least to an essential part of such size fractions that admits a continuous charging during operation. The process is characterized in that said material during operation is charged continuously in an adjustable stream being controlled and/or adjusted by means of running measurements of different process variables so that the flow and composition of the combustible gas and the heat release is kept under control. A worked-up product substantially free from any organic substance is withdrawn from the reactor and is added to a conventional metal smelting process. The material is suitably supplied during operation by means of a charging equipment provided against or down through the single opening of the reactor by means of gravity and/or a pneumatic transport gas.
摘要翻译： 分批处理含有有机成分含量高的再循环材料的贵重金属的方法，使得其在常规金属熔炼方法中作为冶炼材料的用途不合适或甚至不可行。 该材料被装载到可沿其自身的纵向轴线旋转的可倾斜反应器，该反应器具有用于充电和排空的公共开口。 将该材料加热至通过热解和/或燃烧促进有机成分的排出的温度。 该材料至少包括在运行期间允许连续充电的这种尺寸部分的主要部分。 该方法的特征在于，操作期间的所述材料以可调整的流量连续地进行加载，其通过不同工艺变量的运行测量来控制和/或调节，使得可燃气体和热释放的流动和组成保持在控制之下 。 将基本上不含任何有机物质的后处理产品从反应器中取出并加入常规的金属冶炼工艺中。 该材料在操作期间通过借助于重力和/或气动输送气体抵抗或向下通过反应器的单个开口而设置的装料设备适当地供给。
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公开(公告)号：US1731898A
公开(公告)日：1929-10-15
申请号：US18605327
申请日：1927-04-23
发明人： GERHARD HEINE HANS
IPC分类号： C22B19/38
CPC分类号： C22B19/38
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10.发明公开公开(公告)号：US20230332266A1
公开(公告)日：2023-10-19
申请号：US18044727
申请日：2021-09-09
CPC分类号： C22B7/001 , C22B1/2406 , C22B7/02 , C22B19/38
摘要： A method of manufacturing a valuable material product from an industrial dust is described. The method comprises: i) providing the industrial dust which comprises at least one valuable material and a first concentration of volatile constituents to a heating device with an operation temperature of 600° C. or more, ii) processing the industrial dust by the heating device, wherein processing comprises: iia) heating the industrial dust with a rate of 20° C./min or more, iib) thermally treating the industrial dust by the heating device with a treating temperature in the range of 900° C. to 1200° C., in particular in the range of 1000° C. to 1100° C., for 30 minutes or more, and iic) controlling and/or regulating the oxidizing conditions during processing, wherein processing comprises: at least partially removing the volatile constituents from the industrial dust, and iii) providing the valuable material product. Furthermore, the processed valuable material product is described.
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