CN107201449B - A kind of method of the recycling of waste residue containing slicker solder tin - Google Patents

A kind of method of the recycling of waste residue containing slicker solder tin Download PDF

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CN107201449B
CN107201449B CN201710425612.9A CN201710425612A CN107201449B CN 107201449 B CN107201449 B CN 107201449B CN 201710425612 A CN201710425612 A CN 201710425612A CN 107201449 B CN107201449 B CN 107201449B
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tin
oxygen
waste residue
recycling
slicker solder
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CN107201449A (en
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赵玉华
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Anhui Jin Hong Renewable Resources Technology Co Ltd
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Anhui Jin Hong Renewable Resources Technology Co Ltd
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    • 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
    • C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
    • C22B7/04—Working-up slag
    • 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
    • C22B25/00—Obtaining tin
    • C22B25/02—Obtaining tin 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
    • C22B25/00—Obtaining tin
    • C22B25/06—Obtaining tin from scrap, especially tin scrap
    • 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
    • C22B25/00—Obtaining tin
    • C22B25/08—Refining
    • 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
    • C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/02—Refining by liquating, filtering, centrifuging, distilling, or supersonic wave action including acoustic waves
    • 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
    • C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/04—Refining by applying a vacuum
    • 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
    • C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/10—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals with refining or fluxing agents; Use of materials therefor, e.g. slagging or scorifying agents
    • 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

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

Abstract

The invention belongs to the technical field of tin is recycled in lead bullion, and in particular to a kind of method of the recycling of waste residue containing slicker solder tin is produced and crystallized tin including raw material preparation, the melting of three stages, refined tin and produce.The present invention has the following advantages compared with prior art：It is adjusted and controls by the condition to raw material, smelting process in the present invention, the iron-holder in thick tin can effectively be controlled, reduce the energy consumption in fusion process, tin is restored to greatest extent, reduces refined tin consumption while realizing comprehensive utilization again, except tin efficiency reaches more than 99%, stanniferous amount is less than 0.0001% in lead, realize efficiently using for product resource, lead, tin separation phase energy consumption are smaller, remarkable in economical benefits.

Description

A kind of method of the recycling of waste residue containing slicker solder tin
Technical field
The invention belongs to the technical field of tin is recycled in lead bullion, and in particular to a kind of method of the recycling of waste residue containing slicker solder tin.
Background technology
Tin has a wide range of applications in many fields, particularly electronics, material industry, and the Tin Resources reserves in China are located at The first in the world, tin and antimony, tungsten, rare earth and the four major strategies resource for becoming China, current most of lead smelting enterprises are all with tin The form of slag is triumphant cruel, achievees the purpose that recycle tin from reverberatory furnace blowing, tin recovery technology production procedure is lead bullion in anode pot Tin 40% enters except copper dross slag, 60% enters lead bullion anode plate during founding；During lead wet method point solution in lead bullion anode plate 40% tin with lead One starting point parses, 60% enters lead electrolysis anode sludge；It is enriched in lead bullion slag in pyro-refining into the tin that lead is precipitated, essence Lead skim blows to obtain scruff through reverberatory furnace；Lead anode slurry 80% tin in reverberatory smelting, which enters, blows slag, and 10% enters precious metals containing lead, 10% enters slag, and since this stanniferous slag contains, noble metal is higher directly to open a way, and stanniferous slag is melted down melting production repeatedly The tin gone out blows that the separation of slag metal is poor, and the metallic lead taken away with slag, bismuth, silver are more, using antimony as 13% left side for very, accounting for total antimony amount that feeds intake The right side, improves the secondary smelting cost of reprocessing, and the stanniferous amount of output scruff is low（10-20%）, price it is low, also have part lead smelting Refining enterprise is blown using reverberatory furnace to be enriched with tin directly from lead bullion and obtains tin and blow slag, by tin blow slag repeatedly reduction melting obtain with The comparable tin alloy of thick solder compositions, Zai Song tin factory's electrolysis process or the recycling of other process, this way of recycling are still deposited Big, the defects of secondary smelting reprocessed in production process is of high cost in processing high energy consumption and environmental pollution, these methods are all It is that different phase is handled containing scruff in being smelted for lead, to achieve the purpose that recycling tin, this processing means are present in Tin is dispersed into different centres or final products, increases tin reclaimer, and tin can also influence the matter of lead as by-product Amount.
Invention content
The purpose of the present invention is being directed to the problem of existing, a kind of method of the recycling of waste residue containing slicker solder tin is provided.
The present invention is achieved by the following technical solutions：A kind of method of the recycling of waste residue containing slicker solder tin, including following interior Hold：
（1）Prepare raw material, 200 parts of slicker solder waste residue, 11-18 parts of lime stone, 45-50 parts of anthracite, quartz by weight 42-47 parts, 65-70 parts of vinegar sawdust, 100-120 parts of orange oil, 9-13 parts of adsorbent；
（2）By slicker solder waste residue, lime stone, anthracite, quartz, vinegar sawdust, adsorbent respectively by sealing delivery pipe Road is transported to behind side-blown converter workshop dispensing in proportion, adds in smelting furnace and is smelted, smelting process is divided into three phases：
A. the oxidizing semlting stage, for 800-1000 DEG C, the control of oxygen-enriched air oxygen concentration is led to 80% for bath temperature control The adding proportion of orange oil is 6-8% in the oxygen entered, chemically reacts and carries out in stove while stirring to clinker, time 120- 130min；
B. the reduction melting stage, at 1200-1300 DEG C, oxygen-enriched air oxygen concentration is controlled in 45- for bath temperature control 50%, the adding proportion of orange oil is 1-2% in the oxygen being passed through, and stops charging after oxidation, only adds in anthracite and quartz Stone, reduction phase time are 80-90min；
C. the slagging stage opens slag tap, and the slagging time is 30min, obtains thick tin；
（3）Thick tin from thick refining workshop is melted in product pot, condensation method removes iron, adds sulphur copper removal, vacuum drying oven vacuum Distillation is flowed out by tin-tube after tin is enriched except lead, antimony, bismuth alloy, obtains refined tin；
（4）After refined tin from vacuum drying oven is added in fireless cooker melting, the hydrogen-oxygen for being equivalent to refined tin weight 0.022% is added in Change sodium, 0.008% zinc hydroxide and 0.014% rosin, whipping temp is 460-475 DEG C, stirs 45-55min, is crystallized Tin, tin slab is made according to a conventional method can be put in storage sale.
As further improvement of these options, the preparation method of the vinegar sawdust is：By weedtree sawdust and vinegar liquid By weight 2:3 mixing, sealing thermal insulation under conditions of being 55-65 DEG C in temperature, drain away the water, being dried to water content is after the completion 12-18%；Adsorbent is dedicated molecular sieve used for lithium base oxygen.
As further improvement of these options, the active ingredient of the orange oil is 95%.
As further improvement of these options, the orange oil is heated to 65-70 DEG C, after being atomized with atomizer with oxygen Gas mixes.
As further improvement of these options, the oxidizing semlting stage, bath temperature control is 870 DEG C, oxygen-enriched The adding proportion of air oxygen concentration control orange oil in 80%, the oxygen being passed through is 6%, and stove is internalized by while stirring to clinker It learns reaction to carry out, time 125min.
As further improvement of these options, the reduction melting stage, bath temperature is controlled at 1250 DEG C, oxygen-enriched The adding proportion of air oxygen concentration control orange oil in 46%, the oxygen being passed through is 1.4%, stops charging after oxidation, Anthracite and quartz are only added in, the reduction phase time is 85min.
In smelting process, tin, lead, antimony, copper, silver, the bismuth rate of recovery are 97%, 97%, 97%, 97%, 90%, 95%, in clinker The substances such as silica, calcium oxide, aluminium carbonate are mainly contained, 75% iron enters clinker.
The present invention has the following advantages compared with prior art：It is carried out in the present invention by the condition to raw material, smelting process It adjusts and controls, can effectively control the iron-holder in thick tin, reduce the energy consumption in fusion process, tin is restored to greatest extent Out, realize reduces refined tin consumption again while comprehensive utilization, except tin efficiency reaches more than 99%, stanniferous amount is less than in lead 0.0001%, realize efficiently using for product resource, lead, tin separation phase energy consumption are smaller, remarkable in economical benefits.
Specific embodiment
Embodiment 1
A kind of method of the recycling of waste residue containing slicker solder tin, including the following contents：
（1）Prepare raw material, 200 parts of slicker solder waste residue, 15 parts of lime stone, 47 parts of anthracite, 45 parts of quartz, vinegar by weight 68 parts of sawdust processed, 110 parts of orange oil, 11 parts of adsorbent；
（2）By slicker solder waste residue, lime stone, anthracite, quartz, vinegar sawdust, adsorbent respectively by sealing delivery pipe Road is transported to behind side-blown converter workshop dispensing in proportion, adds in smelting furnace and is smelted, smelting process is divided into three phases：
A. the oxidizing semlting stage, bath temperature control is 870 DEG C, and the control of oxygen-enriched air oxygen concentration is 80%, the oxygen being passed through The adding proportion of orange oil is 6% in gas, chemically reacts and carries out in stove while stirring to clinker, time 125min；
B. the reduction melting stage, in the reduction melting stage, at 1250 DEG C, oxygen-enriched air oxygen concentration controls for bath temperature control The adding proportion of orange oil is 1.4% in 46%, the oxygen being passed through, and stops charging after oxidation, only adds in anthracite and stone Diamond stone, reduction phase time are 85min；
C. the slagging stage opens slag tap, and the slagging time is 30min, obtains thick tin；
（3）Thick tin from thick refining workshop is melted in product pot, condensation method removes iron, adds sulphur copper removal, vacuum drying oven vacuum Distillation is flowed out by tin-tube after tin is enriched except lead, antimony, bismuth alloy, obtains refined tin；
（4）After refined tin from vacuum drying oven is added in fireless cooker melting, the hydrogen-oxygen for being equivalent to refined tin weight 0.022% is added in Change sodium, 0.008% zinc hydroxide and 0.014% rosin, whipping temp is 470 DEG C, stirs 50min, crystallization tin is obtained, by normal Tin slab, which is made, in rule method can be put in storage sale.
Wherein, the preparation method of the vinegar sawdust is：By weedtree sawdust and vinegar liquid by weight 2:3 mixing, in temperature Sealing thermal insulation under conditions of being 55-65 DEG C, drains away the water after the completion, is dried to water content as 12-18%；Adsorbent is lithium base system Oxygen is dedicated molecular sieve used.
Embodiment 2
A kind of method of the recycling of waste residue containing slicker solder tin, including the following contents：
（1）Prepare raw material, 200 parts of slicker solder waste residue, 11 parts of lime stone, 50 parts of anthracite, 42 parts of quartz, vinegar by weight 65 parts of sawdust processed, 100 parts of orange oil, 9 parts of adsorbent；
（2）By slicker solder waste residue, lime stone, anthracite, quartz, vinegar sawdust, adsorbent respectively by sealing delivery pipe Road is transported to behind side-blown converter workshop dispensing in proportion, adds in smelting furnace and is smelted, smelting process is divided into three phases：
A. the oxidizing semlting stage, bath temperature control is 800 DEG C, and the control of oxygen-enriched air oxygen concentration is 80%, the oxygen being passed through The adding proportion of orange oil is 7% in gas, chemically reacts and carries out in stove while stirring to clinker, time 120min；
B. the reduction melting stage, at 1200 DEG C, the control of oxygen-enriched air oxygen concentration is passed through 50% for bath temperature control The adding proportion of orange oil is 1% in oxygen, stops charging after oxidation, only adds in anthracite and quartz, during reduction phase Between be 80min；
C. the slagging stage opens slag tap, and the slagging time is 30min, obtains thick tin；
（3）Thick tin from thick refining workshop is melted in product pot, condensation method removes iron, adds sulphur copper removal, vacuum drying oven vacuum Distillation is flowed out by tin-tube after tin is enriched except lead, antimony, bismuth alloy, obtains refined tin；
（4）After refined tin from vacuum drying oven is added in fireless cooker melting, the hydrogen-oxygen for being equivalent to refined tin weight 0.022% is added in Change sodium, 0.008% zinc hydroxide and 0.014% rosin, whipping temp is 475 DEG C, stirs 55min, crystallization tin is obtained, by normal Tin slab, which is made, in rule method can be put in storage sale.
Embodiment 3
A kind of method of the recycling of waste residue containing slicker solder tin, including the following contents：
（1）Prepare raw material, 200 parts of slicker solder waste residue, 18 parts of lime stone, 45 parts of anthracite, 47 parts of quartz, vinegar by weight 70 parts of sawdust processed, 120 parts of orange oil, 13 parts of adsorbent；
（2）By slicker solder waste residue, lime stone, anthracite, quartz, vinegar sawdust, adsorbent respectively by sealing delivery pipe Road is transported to behind side-blown converter workshop dispensing in proportion, adds in smelting furnace and is smelted, smelting process is divided into three phases：
A. the oxidizing semlting stage, for 1000 DEG C, the control of oxygen-enriched air oxygen concentration is passed through 80% for bath temperature control The adding proportion of orange oil is 8% in oxygen, chemically reacts and carries out in stove while stirring to clinker, time 130min；
B. the reduction melting stage, at 1200-1300 DEG C, oxygen-enriched air oxygen concentration is controlled in 45- for bath temperature control 50%, the adding proportion of orange oil is 1% in the oxygen being passed through, and stops charging after oxidation, only adds in anthracite and quartz, The reduction phase time is 80min；
C. the slagging stage opens slag tap, and the slagging time is 30min, obtains thick tin；
（3）Thick tin from thick refining workshop is melted in product pot, condensation method removes iron, adds sulphur copper removal, vacuum drying oven vacuum Distillation is flowed out by tin-tube after tin is enriched except lead, antimony, bismuth alloy, obtains refined tin；
（4）After refined tin from vacuum drying oven is added in fireless cooker melting, the hydrogen-oxygen for being equivalent to refined tin weight 0.022% is added in Change sodium, 0.008% zinc hydroxide and 0.014% rosin, whipping temp is 475 DEG C, stirs 45min, crystallization tin is obtained, by normal Tin slab, which is made, in rule method can be put in storage sale.
The slicker solder waste residue that local certain lead electrolysis producer provides is selected to do raw material, control group 1 is set, step in embodiment 1（2） Orange oil is free of in oxygen, remaining content is identical；Control group 2, step are set（4）Middle addition is equivalent to refined tin weight 0.028% Sodium hydroxide, remaining content are same as Example 1；Control group 3, step are set（4）Middle addition is equivalent to refined tin weight 0.028% Sodium hydroxide, whipping temp is 520 DEG C, stirs 65min, remaining content is same as Example 1；Control group 4, step are set （2）Without orange oil, step in oxygen（4）It is middle to add in the sodium hydroxide for being equivalent to refined tin weight 0.028%, whipping temp 520 DEG C, 65min is stirred, remaining content is same as Example 1, to step（4）The Theil indices statistics of front and rear electricity lead, obtains following number According to：
Table 1
Group It is stanniferous before stirring（%） It is stanniferous after stirring（%） The tin rate of recovery（%）
Embodiment 1 0.0064 0.000053 99.17
Embodiment 2 0.0072 0.000056 99.22
Embodiment 3 0.0073 0.000055 99.25
Control group 1 0.0038 0.000065 98.41
Control group 2 0.0066 0.000107 98.38
Control group 3 0.0069 0.000082 98.81
Control group 4 0.0039 0.000075 98.07
The tin rate of recovery=（It is stanniferous after stanniferous before stirring-stirring）Stanniferous before/stirring × 100%；
Step is can be seen that by data in table 1（2）The setting of middle orange oil greatly possible can extract tin Come, thick tin extraction process can greatly reduce the Theil indices in electric lead, and the tin rate of recovery reaches more than 99%, improve the excellent of electric lead Matter rate；Control group 3 is also higher with respect to the tin rate of recovery, but its energy consumption, higher than embodiment 1, therefore, method can recycle in the present invention More tin, remarkable in economical benefits.

Claims (5)

  1. A kind of 1. method of the recycling of waste residue containing slicker solder tin, which is characterized in that including the following contents：
    （1）Prepare raw material, 200 parts of slicker solder waste residue, 11-18 parts of lime stone, 45-50 parts of anthracite, quartz 42-47 by weight Part, 65-70 parts of vinegar sawdust, 100-120 parts of orange oil, 9-13 parts of adsorbent；
    （2）Slicker solder waste residue, lime stone, anthracite, quartz, vinegar sawdust, adsorbent is defeated by sealing conveyance conduit respectively Dispensing in proportion is sent to behind side-blown converter workshop, adds in smelting furnace and is smelted, smelting process is divided into three phases：
    A. the oxidizing semlting stage, for 800-1000 DEG C, the control of oxygen-enriched air oxygen concentration is passed through 80% for bath temperature control The adding proportion of orange oil is 6-8% in oxygen, chemically reacts and carries out in stove while stirring to clinker, time 120- 130min；
    B. the reduction melting stage, at 1200-1300 DEG C, oxygen-enriched air oxygen concentration is controlled in 45-50%, is led to for bath temperature control The adding proportion of orange oil is 1-2% in the oxygen entered, stops charging after oxidation, only adds in anthracite and quartz, reduction Phases-time is 80-90min；
    C. the slagging stage opens slag tap, and the slagging time is 30min, obtains thick tin；
    （3）Thick tin from thick refining workshop is melted in product pot, condensation method removes iron, adds sulphur copper removal, vacuum drying oven vacuum distillation Except lead, antimony, bismuth alloy, flowed out after tin is enriched by tin-tube, obtain refined tin；
    （4）By from vacuum drying oven refined tin add in fireless cooker melting after, add in be equivalent to refined tin weight 0.022% sodium hydroxide, 0.008% zinc hydroxide and 0.014% rosin, whipping temp are 460-475 DEG C, stir 45-55min, obtain crystallization tin, press Tin slab, which is made, in conventional method can be put in storage sale；
    The preparation method of the vinegar sawdust is：By weedtree sawdust and vinegar liquid by weight 2:3 mixing are 55-65 DEG C in temperature Under conditions of sealing thermal insulation, drain away the water after the completion, be dried to water content as 12-18%；Adsorbent is lithium base oxygen special-purpose molecular Sieve.
  2. 2. a kind of method of waste residue containing slicker solder recycling tin as described in claim 1, which is characterized in that the orange oil it is effective into It is divided into 95%.
  3. 3. a kind of method of the recycling of waste residue containing slicker solder tin as described in claim 1, which is characterized in that the orange oil is heated to 65-70 DEG C, after being atomized with atomizer with oxygen mix.
  4. 4. a kind of method of the recycling of waste residue containing slicker solder tin as described in claim 1, which is characterized in that the oxidizing semlting stage, Bath temperature control is 870 DEG C, and oxygen-enriched air oxygen concentration control adding proportion of orange oil in 80%, the oxygen being passed through is 6%, it chemically reacts and carries out in stove while stirring to clinker, time 125min.
  5. 5. a kind of method of the recycling of waste residue containing slicker solder tin as described in claim 1, which is characterized in that the reduction melting stage, At 1250 DEG C, oxygen-enriched air oxygen concentration control adding proportion of orange oil in 46%, the oxygen being passed through is for bath temperature control 1.4%, stop charging after oxidation, only add in anthracite and quartz, the reduction phase time is 85min.
CN201710425612.9A 2017-06-08 2017-06-08 A kind of method of the recycling of waste residue containing slicker solder tin Active CN107201449B (en)

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Publication number Priority date Publication date Assignee Title
CN108251660A (en) * 2018-02-02 2018-07-06 赣州市赤鼎再生资源有限公司 A kind of method of stanniferous abandoned mine material recycling tin
CN108330296A (en) * 2018-03-26 2018-07-27 赣州市赤鼎再生资源有限公司 The recovery process of tin in a kind of stanniferous waste material
CN111321301A (en) * 2020-04-15 2020-06-23 云南锡业股份有限公司铜业分公司 System and method for efficiently recovering valuable metals in tin secondary raw materials
GB2601212B (en) * 2020-04-15 2024-03-13 Copper Branch Company Of Yunnan Tin Company Ltd A system applied to efficiently recycle valuable metals from secondary raw materials of tin and its method
CN111850321A (en) * 2020-07-31 2020-10-30 云南锡业股份有限公司锡业分公司 Method for reducing tin content in tin refining slag
CN115927876B (en) * 2022-11-14 2023-07-25 昆明鼎邦科技股份有限公司 Fire refining process for crude tin

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CN102492861A (en) * 2011-12-29 2012-06-13 昆明理工大学 Fire refining method of crude tin
CN103334008A (en) * 2013-05-29 2013-10-02 中国瑞林工程技术有限公司 Smelting method and smelting device for acid mud treatment
JP2013234356A (en) * 2012-05-09 2013-11-21 Jx Nippon Mining & Metals Corp Pyrometallurgy process for lead using high impurity-containing lead slag as raw material
CN104073655A (en) * 2014-06-25 2014-10-01 中国恩菲工程技术有限公司 Tin smelting technique by continuous side blowing
CN104152715A (en) * 2014-05-13 2014-11-19 中国恩菲工程技术有限公司 Bottom blowing tin smelting process

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102492861A (en) * 2011-12-29 2012-06-13 昆明理工大学 Fire refining method of crude tin
JP2013234356A (en) * 2012-05-09 2013-11-21 Jx Nippon Mining & Metals Corp Pyrometallurgy process for lead using high impurity-containing lead slag as raw material
CN103334008A (en) * 2013-05-29 2013-10-02 中国瑞林工程技术有限公司 Smelting method and smelting device for acid mud treatment
CN104152715A (en) * 2014-05-13 2014-11-19 中国恩菲工程技术有限公司 Bottom blowing tin smelting process
CN104073655A (en) * 2014-06-25 2014-10-01 中国恩菲工程技术有限公司 Tin smelting technique by continuous side blowing

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