CN101715492A - 用于制备金属锌的含锌化合物的直接熔炼 - Google Patents

用于制备金属锌的含锌化合物的直接熔炼 Download PDF

Info

Publication number
CN101715492A
CN101715492A CN200880019440A CN200880019440A CN101715492A CN 101715492 A CN101715492 A CN 101715492A CN 200880019440 A CN200880019440 A CN 200880019440A CN 200880019440 A CN200880019440 A CN 200880019440A CN 101715492 A CN101715492 A CN 101715492A
Authority
CN
China
Prior art keywords
zinc
smelting furnace
iron
lead
addition
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN200880019440A
Other languages
English (en)
Other versions
CN101715492B (zh
Inventor
格伦·E·霍夫曼
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cardero Resource Corp
Original Assignee
Cardero Resource Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Cardero Resource Corp filed Critical Cardero Resource Corp
Publication of CN101715492A publication Critical patent/CN101715492A/zh
Application granted granted Critical
Publication of CN101715492B publication Critical patent/CN101715492B/zh
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/14—Agglomerating; Briquetting; Binding; Granulating
    • C22B1/24—Binding; Briquetting ; Granulating
    • C22B1/242—Binding; Briquetting ; Granulating with binders
    • C22B1/244—Binding; Briquetting ; Granulating with binders organic
    • C22B1/245—Binding; Briquetting ; Granulating with binders organic with carbonaceous material for the production of coked agglomerates
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B11/00—Making pig-iron other than in blast furnaces
    • C21B11/10—Making pig-iron other than in blast furnaces in electric furnaces
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/0006—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state
    • C21B13/0013—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state introduction of iron oxide into a bath of molten iron containing a carbon reductant
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/12—Making spongy iron or liquid steel, by direct processes in electric furnaces
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B13/00—Obtaining lead
    • C22B13/02—Obtaining lead by dry processes
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B19/00—Obtaining zinc or zinc oxide
    • C22B19/04—Obtaining zinc by distilling
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B19/00—Obtaining zinc or zinc oxide
    • C22B19/04—Obtaining zinc by distilling
    • C22B19/10—Obtaining zinc by distilling in reverberatory furnaces
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B19/00—Obtaining zinc or zinc oxide
    • C22B19/04—Obtaining zinc by distilling
    • C22B19/16—Distilling vessels
    • C22B19/18—Condensers, Receiving vessels
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B34/00—Obtaining refractory metals
    • C22B34/10—Obtaining titanium, zirconium or hafnium
    • C22B34/12—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B4/00—Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B5/00—General methods of reducing to metals
    • C22B5/02—Dry methods smelting of sulfides or formation of mattes
    • C22B5/10—Dry methods smelting of sulfides or formation of mattes by solid carbonaceous reducing agents
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B5/00—General methods of reducing to metals
    • C22B5/02—Dry methods smelting of sulfides or formation of mattes
    • C22B5/16—Dry methods smelting of sulfides or formation of mattes with volatilisation or condensation of the metal being produced
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
    • C21B2100/60—Process control or energy utilisation in the manufacture of iron or steel
    • C21B2100/62—Energy conversion other than by heat exchange, e.g. by use of exhaust gas in energy production
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
    • C21B2100/60—Process control or energy utilisation in the manufacture of iron or steel
    • C21B2100/66—Heat exchange
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2400/00—Treatment of slags originating from iron or steel processes
    • C21B2400/02—Physical or chemical treatment of slags
    • C21B2400/022—Methods of cooling or quenching molten slag
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/0056—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00 using cored wires
    • C21C2007/0062—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00 using cored wires with introduction of alloying or treating agents under a compacted form different from a wire, e.g. briquette, pellet
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/52—Manufacture of steel in electric furnaces
    • C21C5/527—Charging of the electric furnace
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/10—Reduction of greenhouse gas [GHG] emissions
    • Y02P10/134—Reduction of greenhouse gas [GHG] emissions by avoiding CO2, e.g. using hydrogen
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

一种用于从锌和铅的硫化物或氧化物的浓缩物制备铅和锌的方法包括下列步骤：(a)将铅矿石和/或锌矿石浓缩物、含铁和含碳材料、金属铁微粉和氧化铁微粉、含碳还原剂、融合剂和粘合剂混合，以形成混合物；(b)从所述混合物形成附聚物(c)将所述附聚物引入到熔化炉中；(d)在熔化炉中汽化铅和锌，并且将这些金属以汽化的形式从熔化炉移去；(e)将金属蒸气冷却和冷凝成液态金属；(f)分离锌和铅；和(g)分别地回收每一种金属。

Description

用于制备金属锌的含锌化合物的直接熔炼
发明领域
本发明涉及用于通过在其中通常结合以硫化物和/氧化物形式的锌和/或铅(ZnS和/或ZnO，PbS和/或PbO)的含锌或铅的化合物的直接熔炼制备金属锌或铅的方法和设备。
发明概述
含锌化合物，主要为ZnS或ZnSO4，还有ZnO和含有氧化锌的材料，例如电弧炉粉尘(EAFD)，被冷压块以形成致密的附聚物，所述致密的附聚物含有含碳材料如煤、焦炭、石油焦(petcoke)、木炭等，氧化铁(或者已经在矿石中含有的，或者以铁矿石微粉、轧制铁鳞、金属化铁微粉等的形式对混合物添加的)，熔剂如石灰、二氧化硅、晶石等，以及粘合剂。在附聚物中存在过量的碳，其不仅与锌化合物反应，并且还原氧化铁、氧化锰、氧化铅、氧化钙等，使得熔化器气氛主要是CO，以及一些来自煤的挥发的释放的H2。氧化铁中含有的氧自由地与硫化锌反应以形成ZnO，或硫化锌在达到高温时可以升华以释放锌蒸气。体系中的硫自由地与液态铁结合以形成液态FeS或在铁中溶解的硫。
发明目的
本发明的主要目的是提供用于从硫化物和氧化物的浓缩物回收锌和铅的有效方法。
本发明的另一个目的是提供用于产生所有所需的电以供应方法并且以在电的方面自给自足的方式运行设备的手段。
附图简述
通过参考下列详细描述和附图，前述和其它的目的将变得更容易显而易见，在所述附图中：
图1是根据本发明的用于从硫化物和氧化物的浓缩物回收锌和铅的方法的示意性流程图。
图2是用于从来自本发明方法的废气产生电的示意性流程图。
图3是显示用于回收锌和铅的备选方法的示意性流程图，其中将原料在附聚或不附聚的情况下预热，然后供给到熔化炉。
图中的参考标记是指下列项目：
10-铅矿石和/或锌矿石浓缩物-100％通过10目Tyler标准(TylerStandard)(1.70mm)，优选100％通过100目Tyler标准(Tyler Standard)(150微米)
12-金属铁微粉，和氧化铁微粉-100％小于(minus)25mm，优选100％通过10目
14-制备的还原剂，例如煤、焦炭、石油焦、木炭等，100％通过25mm，优选100％通过100目Tyler标准(150微米)
16-融合剂-CaO、MgO、CaF2、Al2O3、SiO2等-100％小于25mm
18-粘合剂例如纤维素、膨润土、糖蜜(molasses)、淀粉-是有机的或无机的
20-再循环微粉
22-混合机
24-压块机(briquetter)/附聚机(agglomerator)(尺寸8至100cc)
26-水添加
28-造粒机-鼓型或盘型
30-筛网-干式或滚筒式
32-半成品球(greenball)干燥器(干燥粒料至1％水分以下)
34-附聚物(块体(briquette))固化/储料斗
36-重量体系(weight system)中的进料损失
37-加压密封室
38-电熔化炉或熔化器＞1000C
40-用于液态铁和硫化铁的一个或多个杓(ladle)
42-用于脱硫的炉渣添加
44-铁锭浇铸器(caster)
45-铁锭
46-炉渣杓
48-炉渣处置/骤冷储槽(quench bunker)
50-熔化器废气锌和铅液体冷凝器，水冷却的
52-冷却塔
53-放液杓(tapping ladle)
54-废气间接冷却交换器
56-废气冷却洗涤器/袋滤器
58-风扇
60-通过燃烧将CO&H2转化成CO2&H2O的组套(stack)
62-高压压缩机(300-350psig)
64-任选气流，硫移除系统，例如Selexol
66-高压气体储蓄槽
68-气体涡轮(离开气体温度600-700C)
70-发电机
72-废热锅炉热交换器
74-高压蒸汽涡轮
76-发电机
78-锅炉闭路水管道
80-泵
82-气体硫移除体系上游的任选冷凝器
84-加热器，直接或间接旋转窑类型
详细描述
锌矿石以硫化物或硫化物和氧化物的形式显现。实际上，所有的锌熔炼操作都基于：首先焙烧矿石以释放SO2/SO3，并且将ZnS转化成ZnO，然后还原ZnO以产生Zn蒸气，然后通过降低熔炉废气的温度冷凝所述蒸气。而且，运行熔炉使得铁单元(iron unit)作为优质铁锭的形式排出，这使得对运行的某些限制成为必要。在许多情况下，将SO2/SO3以用于浸提原生矿石的H2SO4的形式回收。本申请人已经进行了考察各种处理途径的热力学计算，并且发现，如果在如下这样的电熔化器中使处理趋向于直接熔炼ZnS，则可以采取不同的锌回收途径，所述电熔化器具有通过供给含有碳的附聚物(例如煤或其它固体碳)并且保持熔化器密封以抵抗空气进入而产生的强还原环境。
在本发明中，附聚物还包括一些氧化铁和炉渣熔剂(CaO和MgO)。在于熔化器中加热的过程中，ZnS被直接转化成Zn蒸气，或转化成ZnO，然后还原成Zn蒸气。用于制备ZnO的氧的来源由氧化铁的还原(Fe2O3-＞FeO)提供，并且与硫化锌反应的是FeO。通过使用常规冷凝器技术从尾气冷凝锌蒸气，并且释放的硫主要以液态FeS的形式被液态Fe结合，或与CaO反应以形成CaS，并且以FeS或炉渣的形式保持液体状态。在本发明方法中需要非常少的铁，以至于铁锭的回收不重要，而是排出液态FeS。锌回收驱使所述方法经济。
如图1中可见，将原料引入到混合机22中，输入材料包括：铅矿石和/或锌矿石浓缩物10，其100％通过10目Tyler标准(1.70mm)，优选其100％通过100目，Tyler标准(150微米)；金属铁微粉和氧化铁微粉12，其100％小于25mm，优选其至少50％通过10目；制备的还原剂14，例如煤、石油焦、木炭或其它含碳材料，其100％小于25mm，优选其100％通过10目Tyler标准(1.70微米)；造渣剂或融合剂16，例如MgO、CaO、Al2O3、CaF2(萤石)和SiO2，其100％小于25mm；有机或无机粘合剂18，例如纤维素、膨润土、糖蜜或淀粉；再循环微粉20，和所需的水26。
在混合机22中将这些材料混合，然后在压块机/附聚机24中或造粒机28(例如鼓型或盘型造粒机)中形成为附聚物，所述附聚物的形式为具有均匀尺寸的块体或粒料，在尺寸上优选为约8cc至100cc。将附聚物通过分级机(sizer)30例如干式筛网或滚筒式筛网筛分，将筛下的材料返回到附聚机24或混合机22。
将来自造粒机28的筛分的粒料在半成品球干燥器32中干燥至1％以下的含湿量。将附聚物在储料斗34中固化和/或储存，然后通过类似于竖炉的料腿(feed leg)的加压密封进料系统36，或通过锁紧阀(lock valve)供给到电熔化炉38中。将电炉熔化器的温度保持在充分高的范围内，使得它形成汽化的铅和锌，将所述汽化的铅和锌作为废气移除，并且在冷凝器50中冷凝。熔化器运行温度在100C至1650C的范围内，优选在1200C至1550C的范围内。电炉熔化器38通常在稍微的正压力下运行。将铅和锌从冷凝器50排放。液态金属特别是铅和锌的密度上的差别，允许较重(更致密)的铅首先从冷凝器50的沉降罐排放，随后将较轻的锌排放至放液杓53。这以间歇基础进行。
如所示的，将铁和硫化铁的混合物从熔化器移出到杓40中，并且可以在锭浇铸器44浇铸成锭45。
备选地，为了将混合物预热到约500至1200C，将还原剂脱挥(devolatizing)和制备向电炉熔化器38的预热进料，可以将离开混合器22的材料D1供给到加热器84。氧化铁的预还原将发生至在约0至90％范围内的水平。如果需要，也可以将附聚材料D2在将材料通过加压密封(pressure seal)37供给到熔化器中之前预热。如所示的，加热器84可以是间接加热的旋转窑或直接烧制窑，并且废气被再循环。根据需要，加热器84可以是有耐火衬里的，或它可以是无衬里的。
任选地，可以将一种或多种另外的原料通过加压密封直接引入到熔化器38中，如由图1中的虚线显示的，这样的另外的材料选自包括下列材料的组：金属铁微粉和氧化铁微粉12，其100％小于25mm，优选小于10目；制备的还原剂14，例如煤、石油焦或其它含碳材料，其100％小于25mm，优选其100％通过10目，Tyler标准(1.70微米)；和造渣剂或融合剂16，例如MgO、CaO、Al2O3、CaF2(萤石)和SiO2，其100％小于25mm。
本发明方法的操作参数如下：
                          正常范围                   最大值
铅锌熔化器                1200-1550C                 1650C
熔化器废气                500-1500C                  1200-1650C
来自Zn-Pb冷凝器的废气     300-700C                   ＜900C
熔化器废气压力            0-0.2″H2O标准规格(gause)  ＜15″H2O标准规格
气体蓄积器废气压力        100-350psig
气体涡轮组合产物离开温度  750-900C                   ＜1000C
离开冷凝器50的废气在可以包括袋滤器的冷却器/洗涤器56中清洗，通过风扇58移动，并且在高压压缩机62中压缩，以及用作气体涡轮68中的燃烧燃料。气体涡轮68驱动发电机70发电，并且将在离开气体涡轮的废气中包含的可感知的热在废热回收锅炉系统72中回收。为了在较低气体温度下的较好范围处理和热回收效率，废热锅炉系统72蒸汽循环可以是基于使用70％的氨和30％的水的“Kalina”循环。氨/水沸腾在一定温度范围内而非在特定的温度和压力发生。由废热锅炉系统72产生的蒸汽然后用于驱动蒸汽涡轮74和发电机76以产生另外的电。通过本发明实现的主要目的之一是产生所有所需的电以供应方法并且在电的方面自给自足地运行设备。
将来自本方法中的任何地方的无用废气在组套60中燃烧，以将一氧化碳和氢转化成二氧化碳和水蒸汽。
为了在任选的硫移除系统64中移除硫，可以对来自压缩机58的气体进行处理，这可能需要在硫气体移除系统上游的任选的冷凝器82。
本发明目的的效果概述
从前述内容容易地显而易见的是，本申请人已经发明了改进的用于比迄今的方法和设备更有效地从硫化物和氧化物的浓缩物中回收锌和铅的方法和设备。
应当理解，前述描述和具体实施方案仅是对本发明及其原理的最佳模式的示意性说明，并且在不背离本发明的精神和范围的情况下，可以由本领域技术人员对设备进行各种更改和添加。

Claims (15)

1.一种用于从锌和铅的硫化物或氧化物的浓缩物制备铅和锌的方法，其包括下列步骤：
(a)将锌矿石和/或铅矿石浓缩物、含铁和含碳材料；金属铁微粉和氧化铁微粉；含碳还原剂；融合剂；和粘合剂混合，以形成混合物；
(b)从所述混合物形成附聚物；
(c)将所述附聚物引入到熔化炉中；
(d)在温度为1000至1650C的所述熔化炉中汽化铅和锌，并且将铅和锌以汽化的形式从所述熔化炉移去；
(e)将金属蒸气冷却和冷凝成液态金属；和
(f)分离锌和铅；和
(g)分别地回收铅和锌金属。
2.根据权利要求1所述的方法，其中：100％的所述锌矿石和/或铅矿石浓缩物通过10目Tyler标准(1.70mm)；100％的所述金属铁微粉和氧化铁微粉小于25mm；和100％的所述含碳还原剂小于25mm。
3.根据权利要求1所述的方法，其中所述含碳还原剂选自包含煤、焦炭、石油焦和木炭的组。
4.根据权利要求1所述的方法，其中所述融合剂选自包含MgO、CaO、Al2O3、CaF2(萤石)和SiO2的组。
5.根据权利要求1所述的方法，其中所述粘合剂选自包含纤维素、膨润土、糖蜜、淀粉或它们的混合物的组。
6.根据权利要求1所述的方法，所述方法另外包括在所述熔化炉中保持还原气氛。
7.根据权利要求1所述的方法，所述方法另外包括通过提供加压密封来充分防止所有对于所述熔化炉的空气进入。
8.根据权利要求1所述的方法，所述方法另外包括在温度为1200至1550C的所述熔化炉中汽化锌和铅。
9.根据权利要求1所述的方法，所述方法另外包括在将所述混合物、所述附聚物引入到所述熔化炉中之前，预热所述混合物、所述附聚物或所述两者。
10.根据权利要求9所述的方法，所述方法另外包括预热至从500至1200C的温度。
11.根据权利要求1所述的方法，所述方法另外包括直接向所述熔化炉中加入下列材料中的至少一种：金属铁微粉和氧化铁微粉，其100％小于25mm；含碳还原剂，其100％小于25mm；和融合剂，其100％小于25mm。
12.根据权利要求1所述的方法，所述方法另外包括：在所述熔化炉中形成液态铁-硫化铁混合物；从所述熔化炉移去所述液态铁-硫化铁混合物，将所述铁脱硫，和固化产生的铁以进一步使用。
13.根据权利要求1所述的方法，所述方法另外包括在所述熔化炉中形成废气，将所述废气清洗和冷却，和利用清洗的废气作为燃烧燃料驱动涡轮和发电。
14.根据权利要求13所述的方法，所述方法另外包括在所述涡轮中产生废气，从所述涡轮回收所述废气，并且将其中含有的可感知的热以蒸汽的形式在废热锅炉回收系统中回收。
15.根据权利要求14所述的方法，所述方法另外包括使用所述蒸汽驱动蒸汽涡轮和相关的发电机以产生另外的电，从而基本上供应所述方法的全部的电需求。
CN2008800194404A 2007-09-04 2008-08-12 用于制备金属锌的含锌化合物的直接熔炼 Expired - Fee Related CN101715492B (zh)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US96734707P 2007-09-04 2007-09-04
US60/967,347 2007-09-04
US99761607P 2007-10-04 2007-10-04
US60/997,616 2007-10-04
US12691508P 2008-05-08 2008-05-08
US61/126,915 2008-05-08
PCT/US2008/010122 WO2009032109A1 (en) 2007-09-04 2008-08-12 Direct smelting of zinc bearing compounds to produce metallic zinc

Publications (2)

Publication Number Publication Date
CN101715492A true CN101715492A (zh) 2010-05-26
CN101715492B CN101715492B (zh) 2011-11-30

Family

ID=40429178

Family Applications (3)

Application Number Title Priority Date Filing Date
CN2008801049111A Pending CN102006966A (zh) 2007-09-04 2008-08-12 金属矿石浓缩物成为铁合金的直接处理
CN2008800194404A Expired - Fee Related CN101715492B (zh) 2007-09-04 2008-08-12 用于制备金属锌的含锌化合物的直接熔炼
CN200880101273A Pending CN101790434A (zh) 2007-09-04 2008-08-12 铁二氧化钛矿石和砂的直接处理

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CN2008801049111A Pending CN102006966A (zh) 2007-09-04 2008-08-12 金属矿石浓缩物成为铁合金的直接处理

Family Applications After (1)

Application Number Title Priority Date Filing Date
CN200880101273A Pending CN101790434A (zh) 2007-09-04 2008-08-12 铁二氧化钛矿石和砂的直接处理

Country Status (8)

Country Link
US (4) US8043408B2 (zh)
EP (3) EP2190623A4 (zh)
CN (3) CN102006966A (zh)
AU (3) AU2008295563B2 (zh)
CA (3) CA2687755C (zh)
MX (3) MX2010002194A (zh)
WO (3) WO2009032109A1 (zh)
ZA (3) ZA201004008B (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106222444A (zh) * 2015-08-25 2016-12-14 赖成章 用高科技冶炼硫化锌矿方法
CN108754178A (zh) * 2018-07-06 2018-11-06 六盘水中联工贸实业有限公司 一种硫化锌精矿的冶炼方法

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT506640B1 (de) * 2008-03-17 2010-07-15 Siemens Vai Metals Tech Gmbh Verfahren und vorrichtung zur herstellung von flüssigem roheisen oder flüssigen stahlvorprodukten
AU2009278748A1 (en) * 2008-08-07 2010-02-11 Zinchem, A Division Of Zimco Group (Pty) Ltd Method and plant for the production of zinc dust
CN101970699B (zh) * 2008-08-30 2013-05-22 塔塔钢铁有限公司 从具有高浓度锌的铁矿石分离锌和提取铁、有用成分的方法
JP5571345B2 (ja) * 2009-09-29 2014-08-13 株式会社神戸製鋼所 ブリケットの製造方法、還元金属の製造方法、及び亜鉛若しくは鉛の分離方法
EP2572005B1 (en) * 2010-05-18 2020-11-18 Tata Steel Limited Direct smelting process
US8906131B2 (en) * 2011-10-04 2014-12-09 John J. Simmons Direct production of iron slabs and nuggets from ore without pelletizing or briquetting
US20140306386A1 (en) * 2011-12-05 2014-10-16 Active Land International Corporation Sustainable process for the co-generation of pig iron and electric energy using wood as fuel
KR101318962B1 (ko) * 2012-04-26 2013-10-15 주식회사 포스코 사철을 이용한 직접환원철 제조장치 및 그 제조방법
CA2882177A1 (en) * 2012-08-22 2014-02-27 Hoffman & Sons Technologies, Llc Production of pig iron
US9404165B2 (en) * 2012-08-22 2016-08-02 Hoffman & Sons Technologies, Llc Producing of pig iron from iron-containing materials
WO2014177931A2 (en) * 2013-04-29 2014-11-06 Saudi Basic Indutries Corporation A process for the removal of metal or impurities from electric arc furnace dust
FI126719B (en) * 2013-12-17 2017-04-28 Outotec Finland Oy Process for the preparation of a manganese-containing iron alloy
CN103706958B (zh) * 2013-12-26 2016-05-25 中国铝业股份有限公司 铝钢界面还原剂
CN113461467A (zh) * 2021-07-20 2021-10-01 北京理工大学 低机械感度的安全环保开爆药及其制备方法
CN118326161B (zh) * 2024-06-13 2024-08-13 昆明理工大学 一种利用废SCR催化剂和晶硅废料制备Si-Ti合金焊料并同时回收钨和钒的方法

Family Cites Families (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2471242A (en) * 1944-01-27 1949-05-24 Pickands Mather & Co Process of treating titaniferous iron ores
US3068091A (en) * 1960-11-01 1962-12-11 Allis Chalmers Mfg Co Process for the direct reduction of oxidic ores
US3224871A (en) * 1961-02-24 1965-12-21 Elektrokemisk As Process of preheating ores for reduction in smelting furnace
US3203758A (en) * 1962-10-30 1965-08-31 Horizons Inc Utilization of steel mill pickle liquor
US3860414A (en) * 1968-09-04 1975-01-14 Int Minerals & Chem Corp Use of graft copolymers as agglomeration binders
US3661555A (en) * 1969-06-24 1972-05-09 Showa Denko Kk Pelletized chromium addition agents for ferro alloys production and method therefor
CA923711A (en) * 1969-09-12 1973-04-03 Ishihara Sangyo Kaisha Titanium dioxide concentrate and its manufacturing process
US3985545A (en) * 1970-09-24 1976-10-12 Sadamu Kinoshita Metal melting method using electric arc furnace
US3754889A (en) * 1970-10-14 1973-08-28 Bethlehem Steel Corp Highly fluxed iron oxide pellet
JPS4936848B1 (zh) * 1970-12-30 1974-10-03
US3765868A (en) * 1971-07-07 1973-10-16 Nl Industries Inc Method for the selective recovery of metallic iron and titanium oxide values from ilmenites
US3900552A (en) * 1972-02-01 1975-08-19 Us Interior Preparation of highly pure titanium tetrachloride from perovskite or titanite
US3899569A (en) * 1972-02-01 1975-08-12 Us Interior Preparation of highly pure titanium tetrachloride from ilmenite slag
SE433128B (sv) * 1974-02-21 1984-05-07 Nisshin Steel Co Ltd Hermetiskt sluten ljusbagsugn
US4071355A (en) * 1976-05-13 1978-01-31 Foote Mineral Company Recovery of vanadium from pig iron
US4120694A (en) * 1977-09-06 1978-10-17 The United States Of America As Represented By The Secretary Of The Interior Process for purifying a titanium-bearing material and upgrading ilmenite to synthetic rutile with sulfur trioxide
US4436551A (en) * 1981-10-26 1984-03-13 Sumitomo Heavy Industries, Ltd. Process for making steel from direct-reduced iron
US4509177A (en) * 1983-06-29 1985-04-02 Westinghouse Electric Corp. Electric arc-fired blast furnace system
DE3503493A1 (de) * 1985-01-31 1986-08-14 Korf Engineering GmbH, 4000 Düsseldorf Verfahren zur herstellung von roheisen
US4659374A (en) * 1985-06-14 1987-04-21 Dow Corning Corporation Mixed binder systems for agglomerates
JP2671053B2 (ja) * 1990-04-20 1997-10-29 住友重機械工業株式会社 亜鉛含有ダストからの有価金属の回収方法
US5258054A (en) * 1991-11-06 1993-11-02 Ebenfelt Li W Method for continuously producing steel or semi-steel
US5443614A (en) * 1994-07-28 1995-08-22 Noranda, Inc. Direct smelting or zinc concentrates and residues
US5906671A (en) * 1996-10-25 1999-05-25 Agglo Inc. Method for extraction of metals and non-metals from minerals, industrial by-products and waste materials
US6342089B1 (en) * 1997-09-02 2002-01-29 Mcgaa John R. Direct reduced iron pellets
US6685761B1 (en) * 1998-10-30 2004-02-03 Midrex International B.V. Rotterdam, Zurich Branch Method for producing beneficiated titanium oxides
US6582491B2 (en) * 1998-10-30 2003-06-24 Midrex International, B.V. Rotterdam, Zurich Branch Method for producing molten iron in duplex furnaces
EP1157139B1 (en) * 1999-02-26 2002-10-09 Mintek Treatment of metal sulphide concentrates by roasting and arc furnace smelt reduction
US6306195B1 (en) * 2000-03-24 2001-10-23 Council Of Scientific And Industiral Research Process for the preparation of high grade synthetic rutile and pig iron
GB0009630D0 (en) * 2000-04-19 2000-06-07 Adwell Worldwide Inc Ferroalloy production
US20020035188A1 (en) * 2000-07-21 2002-03-21 Steeghs Henricus Renier Gerardus Agglomerating particulate materials
BR0113896A (pt) * 2000-09-14 2004-07-06 Nippon Kokan Kk Agente e método de refinação
JP2002194452A (ja) * 2000-12-25 2002-07-10 Aichi Steel Works Ltd 電気炉ダストの処理方法
US6648942B2 (en) * 2001-01-26 2003-11-18 Midrex International B.V. Rotterdam, Zurich Branch Method of direct iron-making / steel-making via gas or coal-based direct reduction and apparatus
US6666027B1 (en) * 2002-07-15 2003-12-23 General Electric Company Turbine power generation systems and methods using off-gas fuels
JP4153281B2 (ja) * 2002-10-08 2008-09-24 株式会社神戸製鋼所 酸化チタン含有スラグの製造方法
AU2002952062A0 (en) * 2002-10-15 2002-10-31 D.Wilson Investments Pty. Ltd. Process and apparatus for extracting zinc
WO2004113577A1 (en) * 2003-06-20 2004-12-29 Grain Processing Corporation Method for producing mineral ore agglomerates using a hemicellulose binder and associated products
EP1641948B1 (en) * 2003-07-04 2007-06-13 Umicore Recovery of non-ferrous metals from zinc residues
KR20050035604A (ko) * 2003-10-13 2005-04-19 한국지질자원연구원 2단 고온반응에 의한 전기로 분진으로부터 납, 아연, 철을회수하는 방법

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106222444A (zh) * 2015-08-25 2016-12-14 赖成章 用高科技冶炼硫化锌矿方法
CN108754178A (zh) * 2018-07-06 2018-11-06 六盘水中联工贸实业有限公司 一种硫化锌精矿的冶炼方法
CN108754178B (zh) * 2018-07-06 2020-06-09 六盘水中联工贸实业有限公司 一种硫化锌精矿的冶炼方法

Also Published As

Publication number Publication date
EP2191025A4 (en) 2012-04-18
CN101790434A (zh) 2010-07-28
US20100126310A1 (en) 2010-05-27
AU2008295563B2 (en) 2010-10-28
EP2191025A1 (en) 2010-06-02
EP2190623A4 (en) 2012-04-18
MX2010001489A (es) 2010-08-04
EP2191025B1 (en) 2013-10-09
ZA201004007B (en) 2011-02-23
AU2008295487A1 (en) 2009-03-12
CN102006966A (zh) 2011-04-06
AU2008295487B2 (en) 2011-05-26
CA2698251C (en) 2014-06-03
MX2009012958A (es) 2010-04-27
US7985389B2 (en) 2011-07-26
US20120013053A1 (en) 2012-01-19
CA2694630A1 (en) 2009-03-12
US8043408B2 (en) 2011-10-25
WO2009032109A1 (en) 2009-03-12
ZA201004006B (en) 2011-02-23
ZA201004008B (en) 2011-02-23
EP2190623A1 (en) 2010-06-02
MX2010002194A (es) 2010-06-01
US20100126312A1 (en) 2010-05-27
CN101715492B (zh) 2011-11-30
WO2009032110A1 (en) 2009-03-12
EP2190622A1 (en) 2010-06-02
US20100126311A1 (en) 2010-05-27
AU2008295564A1 (en) 2009-03-12
WO2009032111A1 (en) 2009-03-12
AU2008295563A1 (en) 2009-03-12
EP2190622A4 (en) 2012-04-18
CA2698251A1 (en) 2009-03-12
CA2687755C (en) 2013-03-12
US8420007B2 (en) 2013-04-16
AU2008295564B2 (en) 2011-12-01
CA2687755A1 (en) 2009-03-12

Similar Documents

Publication Publication Date Title
CN101715492B (zh) 用于制备金属锌的含锌化合物的直接熔炼
CN112442589B (zh) 一种垃圾焚烧飞灰与钢铁厂含锌尘泥协同处理的方法及系统
US20120036960A1 (en) Direct processing of metallic ore concentrates into ferroalloys
US6379421B1 (en) Method and apparatus removing undesirable metals from iron-containing materials
WO2010007875A1 (ja) 排ガス処理設備、および排ガス処理設備によるダスト回収方法
KR101493965B1 (ko) 함철아연 폐자원으로부터 철 및 아연의 회수방법
JPS6260832A (ja) 鉄鋼製造における亜鉛および／または鉛を含有する副生物の処理方法
CA2853223C (en) Producing pig iron from iron-containing feed materials
JPH11152511A (ja) 製鋼炉ダストの処理方法及びダストペレット
WO2004053173A1 (ja) Ｖ、Ｍｏ、及びＮｉ含有廃棄物からの有価金属の回収方法
JP2004076090A (ja) 低融点有価物の回収方法及び装置
JPH0953129A (ja) 製鉄ダストからの亜鉛の回収方法
JP2004076089A (ja) 低融点有価物の回収方法及び装置
JPH11302750A (ja) 製鉄ダスト処理方法
JPS60159128A (ja) 特殊鋼ダスト，スラツジ類からの有価金属回収方法

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20111130

Termination date: 20140812

EXPY Termination of patent right or utility model