JP6406675B2 - 電気炉製鋼ダストからの亜鉛回収方法および電気炉製鋼ダストからの亜鉛回収装置 - Google Patents
電気炉製鋼ダストからの亜鉛回収方法および電気炉製鋼ダストからの亜鉛回収装置 Download PDFInfo
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- 239000011701 zinc Substances 0.000 title claims description 167
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 title claims description 166
- 229910052725 zinc Inorganic materials 0.000 title claims description 166
- 239000000428 dust Substances 0.000 title claims description 115
- 238000009628 steelmaking Methods 0.000 title claims description 89
- 238000000034 method Methods 0.000 title claims description 42
- 238000011084 recovery Methods 0.000 title claims description 21
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 140
- 238000010438 heat treatment Methods 0.000 claims description 64
- 238000002156 mixing Methods 0.000 claims description 46
- 239000011575 calcium Substances 0.000 claims description 41
- 230000009467 reduction Effects 0.000 claims description 25
- 229940043430 calcium compound Drugs 0.000 claims description 21
- 150000001674 calcium compounds Chemical class 0.000 claims description 21
- 230000004907 flux Effects 0.000 claims description 17
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 13
- 238000002844 melting Methods 0.000 claims description 11
- 230000008018 melting Effects 0.000 claims description 11
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 10
- BUKHSQBUKZIMLB-UHFFFAOYSA-L potassium;sodium;dichloride Chemical compound [Na+].[Cl-].[Cl-].[K+] BUKHSQBUKZIMLB-UHFFFAOYSA-L 0.000 claims description 9
- 239000000292 calcium oxide Substances 0.000 claims description 7
- 235000012255 calcium oxide Nutrition 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 7
- 235000019738 Limestone Nutrition 0.000 claims description 5
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 5
- 239000000920 calcium hydroxide Substances 0.000 claims description 5
- 235000011116 calcium hydroxide Nutrition 0.000 claims description 5
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 5
- 239000006028 limestone Substances 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 5
- 238000007711 solidification Methods 0.000 claims description 2
- 230000008023 solidification Effects 0.000 claims description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 114
- 239000011787 zinc oxide Substances 0.000 description 57
- 239000007864 aqueous solution Substances 0.000 description 37
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 34
- 229910052742 iron Inorganic materials 0.000 description 25
- 238000002386 leaching Methods 0.000 description 19
- 239000000460 chlorine Substances 0.000 description 16
- 239000011133 lead Substances 0.000 description 16
- 239000000243 solution Substances 0.000 description 16
- 229910052751 metal Inorganic materials 0.000 description 13
- 239000002184 metal Substances 0.000 description 13
- 238000012360 testing method Methods 0.000 description 13
- 229910052793 cadmium Inorganic materials 0.000 description 11
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 11
- 229910052736 halogen Inorganic materials 0.000 description 11
- 239000000843 powder Substances 0.000 description 11
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 10
- 235000011941 Tilia x europaea Nutrition 0.000 description 10
- 230000006837 decompression Effects 0.000 description 10
- 150000002367 halogens Chemical class 0.000 description 10
- 239000004571 lime Substances 0.000 description 10
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 8
- 229910001385 heavy metal Inorganic materials 0.000 description 8
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 7
- 229910052801 chlorine Inorganic materials 0.000 description 7
- 229910052731 fluorine Inorganic materials 0.000 description 7
- 239000011737 fluorine Substances 0.000 description 7
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 6
- 230000007935 neutral effect Effects 0.000 description 6
- 238000012545 processing Methods 0.000 description 6
- 238000009413 insulation Methods 0.000 description 5
- 238000002441 X-ray diffraction Methods 0.000 description 4
- 238000004090 dissolution Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- -1 ZnFe 2 O 4 Chemical compound 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- WETINTNJFLGREW-UHFFFAOYSA-N calcium;iron;tetrahydrate Chemical compound O.O.O.O.[Ca].[Fe].[Fe] WETINTNJFLGREW-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005363 electrowinning Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000002244 precipitate Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000003723 Smelting Methods 0.000 description 2
- 229910001308 Zinc ferrite Inorganic materials 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 2
- 235000013365 dairy product Nutrition 0.000 description 2
- 238000007922 dissolution test Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- WGEATSXPYVGFCC-UHFFFAOYSA-N zinc ferrite Chemical compound O=[Zn].O=[Fe]O[Fe]=O WGEATSXPYVGFCC-UHFFFAOYSA-N 0.000 description 2
- NGNBDVOYPDDBFK-UHFFFAOYSA-N 2-[2,4-di(pentan-2-yl)phenoxy]acetyl chloride Chemical compound CCCC(C)C1=CC=C(OCC(Cl)=O)C(C(C)CCC)=C1 NGNBDVOYPDDBFK-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 229910001341 Crude steel Inorganic materials 0.000 description 1
- 229910001335 Galvanized steel Inorganic materials 0.000 description 1
- 229910000978 Pb alloy Inorganic materials 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000779 depleting effect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000008397 galvanized steel Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 150000002505 iron Chemical class 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- JBQYATWDVHIOAR-UHFFFAOYSA-N tellanylidenegermanium Chemical compound [Te]=[Ge] JBQYATWDVHIOAR-UHFFFAOYSA-N 0.000 description 1
- 230000036962 time dependent Effects 0.000 description 1
- 239000003039 volatile agent Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
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
- C22B19/00—Obtaining zinc or zinc oxide
- C22B19/30—Obtaining zinc or zinc oxide from metallic residues or scraps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- 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
- C22B1/005—Preliminary treatment of 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
- C22B19/00—Obtaining zinc or zinc oxide
- C22B19/02—Preliminary treatment of ores; Preliminary refining of zinc oxide
-
- 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
- C22B19/32—Refining zinc
-
- 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
- C22B7/02—Working-up flue dust
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C1/00—Electrolytic production, recovery or refining of metals by electrolysis of solutions
- C25C1/16—Electrolytic production, recovery or refining of metals by electrolysis of solutions of zinc, cadmium or mercury
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
-
- 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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Geochemistry & Mineralogy (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Electrolytic Production Of Metals (AREA)
Description
図1乃至図6は、本発明の実施の形態の電気炉製鋼ダストからの亜鉛回収方法および電気炉製鋼ダストからの亜鉛回収装置を示している。
図1に示すように、本発明の実施の形態の電気炉製鋼ダストからの亜鉛回収装置は、Ca混合加熱手段11と鉄粉混合手段12と還元揮発手段13と亜鉛取得手段14とを有している。
表1に示す電気炉製鋼ダストに、生石灰(CaO)を当量添加して混合し、3時間加熱した場合について、亜鉛(Zn)、鉄(Fe)、塩素(Cl)、フッ素(F)、鉛(Pb)、カドミウム(Cd)の揮発量と保持温度との関係を調べた。その結果を、図3(c)および(d)に示す。また、比較のため、生石灰(CaO)を添加しない場合についても同様の試験を行い、その結果を図3(a)および(b)に示す。
電気炉製鋼ダスト中の鉄濃度以上のCaOを添加し、空気中で、1100℃で3時間加熱したダスト試料を用意し、これにZnO/Feのモル比が1になるように電解鉄粉を加えて混合・圧粉し、図2の還元揮発手段13の試料保持容器22の内部にセットした。その後、減圧容器21の内部を真空ポンプで減圧しながら試料保持容器22を1000℃で約1時間保持し、(3)式に従って発生した亜鉛蒸気を、冷却ゾーンに設置した低温凝縮管24の表面に凝縮させた。ダスト中の亜鉛は、1時間以内に全て還元されて揮発し、試験後の残渣は、2CaO・Fe2O3のみであった。なお、比較のため、石灰処理をしない熱処理済みのダストについても同様の金属鉄粉を加えた試験を実施した。
Znの融点より低い融点であるNaCl−KClベースの多元系塩化物フラックスを用いて、亜鉛の溶解試験を行った。亜鉛片とフラックスとを共にアルミナるつぼに入れ、450℃で再溶解させた。溶解前はフレーク状、粒状で表面が酸化された状態であった亜鉛片が、フラックス溶解後はほぼ健全なインゴットとなった。化学分析の結果、亜鉛の純度は99%以上であった。
Ca混合加熱手段11により石灰処理を行った電気炉製鋼ダスト 1gを、アルカリ性の2M−NaOH溶液 300ミリリットルに投入し、亜鉛の浸出率に及ぼす溶液濃度の影響および温度の影響を調べる試験を行った。水溶液の温度は、25℃、40℃、50℃、70℃とした。その浸出試験の結果を、図6に示す。図6に示すように、2M−NaOH水溶液を70℃に保持すれば、数時間で石灰処理ダストから全ての亜鉛を溶液中に浸出できることが確認された。また、2CaO・Fe2O3は、ほとんど溶液中に溶解することなく、残渣として回収可能であることも確認された。なお、100℃を越えてNaOH水溶液を加熱するのは、投入エネルギー的に好ましくない。
12 鉄粉混合手段
13 還元揮発手段
21 減圧容器
22 試料保持容器
23 断熱管
24 低温凝縮管
25 排気管
14 亜鉛取得手段
1 圧粉体
2 亜鉛蒸気
3 金属亜鉛片
31 浸出手段
32 電解採取手段
Claims (4)
- 電気炉製鋼ダストと、その電気炉製鋼ダスト中のFeのモル数と当量以上のモル数のCaを含むカルシウム化合物とを混合後、非還元性雰囲気中で960℃以上、1100℃以下で1〜3時間熱処理して、ZnOと2CaO・Fe2O3とを得るCa混合加熱工程と、
前記Ca混合加熱工程で得られたZnOと2CaO・Fe2O3とに、前記ZnOのモル数と当量以上のモル数の鉄粉末を混合し、圧粉する鉄粉混合工程と、
前記鉄粉混合工程による圧粉体を減圧容器の内部に配置し、前記減圧容器の内部を減圧するとともに1000℃で1時間加熱して亜鉛蒸気を発生させ、前記亜鉛蒸気を冷却凝固して固体の亜鉛片を得る還元揮発工程と、
前記還元揮発工程で得られた亜鉛片を、亜鉛の融点より低い融点を有するNaCl−KClベースの多元系塩化物系フラックスに溶解させた後、冷却して、塊状の亜鉛を得る亜鉛取得工程とを、
有することを特徴とする電気炉製鋼ダストからの亜鉛回収方法。 - 前記カルシウム化合物は、生石灰、石灰石および消石灰のうちの少なくとも1つから成ることを特徴とする請求項1記載の電気炉製鋼ダストからの亜鉛回収方法。
- 電気炉製鋼ダストと、その電気炉製鋼ダスト中のFeのモル数と当量以上のモル数のCaを含むカルシウム化合物とを混合後、非還元性雰囲気中で960℃以上、1100℃以下で1〜3時間熱処理して、ZnOと2CaO・Fe2O3とを取得可能に設けられたCa混合加熱手段と、
前記Ca混合加熱手段で得られたZnOと2CaO・Fe2O3とに、前記ZnOのモル数と当量以上のモル数の鉄粉末を混合し、圧粉するよう設けられた鉄粉混合手段と、
減圧容器を有し、前記鉄粉混合手段による圧粉体を前記減圧容器の内部に配置し、前記減圧容器の内部を減圧するとともに1000℃で1時間加熱して亜鉛蒸気を発生させ、前記亜鉛蒸気を冷却凝固して固体の亜鉛片を取得可能に設けられた還元揮発手段と、
前記還元揮発手段で得られた亜鉛片を、亜鉛の融点より低い融点を有するNaCl−KClベースの多元系塩化物系フラックスに溶解させた後、冷却して、塊状の亜鉛を取得可能に設けられた亜鉛取得手段とを、
有することを特徴とする電気炉製鋼ダストからの亜鉛回収装置。 - 前記カルシウム化合物は、生石灰、石灰石および消石灰のうちの少なくとも1つから成ることを特徴とする請求項3記載の電気炉製鋼ダストからの亜鉛回収装置。
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JP2013157305 | 2013-07-30 | ||
PCT/JP2014/069184 WO2015016086A1 (ja) | 2013-07-30 | 2014-07-18 | 電気炉製鋼ダストからの亜鉛回収方法および電気炉製鋼ダストからの亜鉛回収装置 |
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WO2015146981A1 (ja) * | 2014-03-25 | 2015-10-01 | 古河電気工業株式会社 | 銅合金板材、コネクタ、および銅合金板材の製造方法 |
JP6113344B1 (ja) * | 2016-04-28 | 2017-04-12 | 国立大学法人東北大学 | 鉄鋼ダストの処理方法、亜鉛の生産方法及び還元鉄の生産方法 |
CN106756095A (zh) * | 2016-11-24 | 2017-05-31 | 云南昆欧科技有限责任公司 | 一种钢铁企业转底炉收尘灰的利用方法 |
CN107022680B (zh) * | 2017-03-20 | 2018-08-17 | 云南驰宏锌锗股份有限公司 | 一种带余热锅炉烟化炉的全冷料开炉方法 |
CN106978535B (zh) * | 2017-03-20 | 2018-05-18 | 云南驰宏锌锗股份有限公司 | 一种带余热锅炉烟化炉的开炉方法 |
CN107385230A (zh) * | 2017-07-31 | 2017-11-24 | 重庆科技学院 | 一种炼钢粉尘回收利用方法及其使用的真空还原电炉设备 |
CN109987865A (zh) * | 2019-04-22 | 2019-07-09 | 莒县中联水泥有限公司 | 高硅石灰石在水泥熟料生产中的应用 |
CN110387476B (zh) * | 2019-08-20 | 2021-04-02 | 昆明理工大学 | 一种电磁强化黄磷电除尘灰浸出回收高纯钾的方法 |
CN111302386A (zh) * | 2020-02-14 | 2020-06-19 | 北京科技大学 | 一种富锌冶金尘泥和半干法脱硫灰协同资源化方法 |
US20240003029A1 (en) * | 2020-12-04 | 2024-01-04 | Kinotech Corporation | Zinc production method |
CN113061746A (zh) * | 2021-03-24 | 2021-07-02 | 常州市左贤机械制造有限公司 | 一种锌液流量控制装置 |
CN114769269A (zh) * | 2022-04-27 | 2022-07-22 | 宁波江丰电子材料股份有限公司 | 一种超高纯铜系残靶的循环再利用方法 |
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US3512959A (en) * | 1967-09-27 | 1970-05-19 | Rossborough Supply Co | Method of preparing melts of zinc base alloys and improved flux therefor |
JPS56102530A (en) * | 1980-01-16 | 1981-08-17 | Sosuke Uchida | Recovering method for zinc from zinc dross by liquation |
US5258055A (en) * | 1992-08-31 | 1993-11-02 | International Mill Service, Inc. | Process and system for recovering zinc and other metal vapors from a gaseous stream |
JP3317137B2 (ja) | 1996-04-01 | 2002-08-26 | 日本鋼管株式会社 | 製鉄ダストからの酸化亜鉛の回収装置 |
JP3929260B2 (ja) * | 2001-07-09 | 2007-06-13 | トピー工業株式会社 | 亜鉛濃縮用成形体及び該成形体を使用する製鋼ダスト中の亜鉛の濃縮方法 |
JP5052963B2 (ja) * | 2007-05-23 | 2012-10-17 | 竹四 阿座上 | 溶融亜鉛の製造方法 |
JP5137110B2 (ja) | 2007-07-27 | 2013-02-06 | 国立大学法人東北大学 | 電気炉ダストからの酸化亜鉛の回収方法 |
WO2009129823A1 (de) * | 2008-04-23 | 2009-10-29 | Arcelormittal Bremen Gmbh | Herstellung von calciumferrit-sintern aus zink- /bleihaltigen eisenreststoffen zur verwertung derselben |
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EP3029166A4 (en) | 2016-12-07 |
KR20160034927A (ko) | 2016-03-30 |
WO2015016086A1 (ja) | 2015-02-05 |
US20160177416A1 (en) | 2016-06-23 |
JPWO2015016086A1 (ja) | 2017-03-02 |
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