JP4532974B2 - 粉粒状酸化アルミニウムの処理方法 - Google Patents
粉粒状酸化アルミニウムの処理方法 Download PDFInfo
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- JP4532974B2 JP4532974B2 JP2004130042A JP2004130042A JP4532974B2 JP 4532974 B2 JP4532974 B2 JP 4532974B2 JP 2004130042 A JP2004130042 A JP 2004130042A JP 2004130042 A JP2004130042 A JP 2004130042A JP 4532974 B2 JP4532974 B2 JP 4532974B2
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- Prior art keywords
- aluminum oxide
- iron
- aluminum
- granular
- iron content
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- 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.)
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- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 title claims description 56
- 238000003672 processing method Methods 0.000 title claims description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 154
- 229910052742 iron Inorganic materials 0.000 claims description 71
- 239000000463 material Substances 0.000 claims description 36
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 34
- 238000000034 method Methods 0.000 claims description 29
- 230000009467 reduction Effects 0.000 claims description 26
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 23
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 23
- 229910000838 Al alloy Inorganic materials 0.000 claims description 22
- 229910052799 carbon Inorganic materials 0.000 claims description 21
- 229910052782 aluminium Inorganic materials 0.000 claims description 20
- 239000000377 silicon dioxide Substances 0.000 claims description 17
- 238000007885 magnetic separation Methods 0.000 claims description 15
- 238000004090 dissolution Methods 0.000 claims description 8
- 239000010438 granite Substances 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 4
- 239000004575 stone Substances 0.000 claims description 4
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 claims description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 2
- 239000006148 magnetic separator Substances 0.000 claims description 2
- 230000003647 oxidation Effects 0.000 claims description 2
- 238000007254 oxidation reaction Methods 0.000 claims description 2
- 238000006722 reduction reaction Methods 0.000 description 25
- 230000008569 process Effects 0.000 description 17
- 229910052710 silicon Inorganic materials 0.000 description 14
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 12
- 239000010703 silicon Substances 0.000 description 12
- 229910000676 Si alloy Inorganic materials 0.000 description 11
- CSDREXVUYHZDNP-UHFFFAOYSA-N alumanylidynesilicon Chemical compound [Al].[Si] CSDREXVUYHZDNP-UHFFFAOYSA-N 0.000 description 11
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 10
- 238000002844 melting Methods 0.000 description 10
- 230000008018 melting Effects 0.000 description 10
- 239000002994 raw material Substances 0.000 description 10
- 229910045601 alloy Inorganic materials 0.000 description 8
- 239000000956 alloy Substances 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000000126 substance Substances 0.000 description 5
- 229910021364 Al-Si alloy Inorganic materials 0.000 description 4
- 229910018619 Si-Fe Inorganic materials 0.000 description 4
- 229910008289 Si—Fe Inorganic materials 0.000 description 4
- 238000003723 Smelting Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 238000010298 pulverizing process Methods 0.000 description 4
- 238000007670 refining Methods 0.000 description 4
- 230000009466 transformation Effects 0.000 description 4
- 239000000654 additive Substances 0.000 description 3
- 230000000996 additive effect Effects 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 229910018125 Al-Si Inorganic materials 0.000 description 2
- 229910018520 Al—Si Inorganic materials 0.000 description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- 229910000519 Ferrosilicon Inorganic materials 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000004898 kneading Methods 0.000 description 2
- 230000005415 magnetization Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000010587 phase diagram Methods 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 239000011044 quartzite Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 235000010627 Phaseolus vulgaris Nutrition 0.000 description 1
- 244000046052 Phaseolus vulgaris Species 0.000 description 1
- 238000005275 alloying Methods 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
- 238000004458 analytical method Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- 235000012255 calcium oxide Nutrition 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 239000010436 fluorite Substances 0.000 description 1
- 150000002366 halogen compounds Chemical class 0.000 description 1
- 239000011019 hematite Substances 0.000 description 1
- 229910052595 hematite Inorganic materials 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- LIKBJVNGSGBSGK-UHFFFAOYSA-N iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Fe+3].[Fe+3] LIKBJVNGSGBSGK-UHFFFAOYSA-N 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
Images
Classifications
-
- 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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- Manufacture And Refinement Of Metals (AREA)
Description
粉粒状酸化アルミニウムを50メッシュ以下の粒状に精粒化して後、磁力選別手段によって鉄分を分離除去して0.1%以下の鉄含有量に処理し、前記磁力選別手段で選別できなかった酸化第二鉄(Fe2O3)を含んだ粉粒状酸化アルミニウムを、還元炉にて700〜800℃の還元ガス中で25分以上保持して四三酸化鉄(Fe3O4)に変態させ、再び磁力選別手段により選別して鉄分を除去処理し、しかる後炭素成分材とけい石とを加えて還元炉内で溶解還元させ、鉄分が1.0%未満のアルミニウム合金を生成することを特徴とするものである(第1発明)。
2 粉砕機による微粉砕処理
3 磁力選別処理
4 原料の団塊処理
5 炭素成分材およびけい石の粉砕処理
6 炭素成分材およびけい石の磁力選別処理
7 溶解還元処理
10 残留鉄分の還元による変態
11 二次磁力選別
Claims (4)
- 粉粒状酸化アルミニウムを50メッシュ以下の粒状に精粒化して後、磁力選別手段によって鉄分を分離除去して0.1%以下の鉄含有量に処理し、前記磁力選別手段で選別できなかった酸化第二鉄(Fe2O3)を含んだ粉粒状酸化アルミニウムを、還元炉にて700〜800℃の還元ガス中で25分以上保持して四三酸化鉄(Fe3O4)に変態させ、再び磁力選別手段により選別して鉄分を除去処理し、しかる後炭素成分材とけい石とを加えて還元炉内で溶解還元させ、鉄分が1.0%未満のアルミニウム合金を生成することを特徴とする粉粒状酸化アルミニウムの処理方法。
- 還元炉内での溶解還元に添加される炭素成分材およびけい石は、いずれも粉砕して、磁力選別手段により鉄分を分離除去したものが用いられる請求項1に記載の粉粒状酸化アルミニウムの処理方法。
- 粉砕された炭素成分材およびけい石の粉粒体と粉粒状酸化アルミニウムとは、粘結材を加え混練して団塊状に形成した後に還元炉に投入される請求項2に記載の粉粒状酸化アルミニウムの処理方法。
- 前記精粒化された粉粒状酸化アルミニウム、粉砕された炭素成分材およびけい石から鉄分を選別する磁力選別手段は、ドラム回転式の磁力選別機である請求項1〜3のいずれかに記載の粉粒状酸化アルミニウムの処理方法。
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JP2004130042A JP4532974B2 (ja) | 2004-04-26 | 2004-04-26 | 粉粒状酸化アルミニウムの処理方法 |
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JP2005307327A JP2005307327A (ja) | 2005-11-04 |
JP4532974B2 true JP4532974B2 (ja) | 2010-08-25 |
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JP2004130042A Expired - Lifetime JP4532974B2 (ja) | 2004-04-26 | 2004-04-26 | 粉粒状酸化アルミニウムの処理方法 |
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Families Citing this family (2)
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CN107671304B (zh) * | 2017-08-21 | 2019-10-11 | 中国石油天然气股份有限公司 | 一种碳热还原法合成铝合金粉体的方法 |
CN110723746A (zh) * | 2019-11-04 | 2020-01-24 | 湖南绿脉环保科技有限公司 | 一种铝灰无害化处理的方法 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH0639311A (ja) * | 1992-07-23 | 1994-02-15 | Sumitomo Chem Co Ltd | アルミナ含有鉱石からの磁性物質の除去方法 |
JPH06145836A (ja) * | 1992-11-16 | 1994-05-27 | Meisei Kako Kk | アルミニウム滓を利用した合金の製法 |
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