JP4692064B2 - 還元処理剤および還元処理方法 - Google Patents
還元処理剤および還元処理方法 Download PDFInfo
- Publication number
- JP4692064B2 JP4692064B2 JP2005131280A JP2005131280A JP4692064B2 JP 4692064 B2 JP4692064 B2 JP 4692064B2 JP 2005131280 A JP2005131280 A JP 2005131280A JP 2005131280 A JP2005131280 A JP 2005131280A JP 4692064 B2 JP4692064 B2 JP 4692064B2
- Authority
- JP
- Japan
- Prior art keywords
- slag
- blast furnace
- reduction treatment
- hexavalent chromium
- elution
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims description 24
- 239000002893 slag Substances 0.000 claims description 71
- JOPOVCBBYLSVDA-UHFFFAOYSA-N chromium(6+) Chemical compound [Cr+6] JOPOVCBBYLSVDA-UHFFFAOYSA-N 0.000 claims description 53
- 238000010828 elution Methods 0.000 claims description 42
- 239000000463 material Substances 0.000 claims description 32
- 239000002245 particle Substances 0.000 claims description 26
- 150000003464 sulfur compounds Chemical class 0.000 claims description 26
- 239000003638 chemical reducing agent Substances 0.000 claims description 21
- 238000010583 slow cooling Methods 0.000 claims description 21
- 238000007254 oxidation reaction Methods 0.000 claims description 17
- 230000003647 oxidation Effects 0.000 claims description 16
- 239000003795 chemical substances by application Substances 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 11
- 239000011593 sulfur Substances 0.000 claims description 11
- 229910052717 sulfur Inorganic materials 0.000 claims description 11
- 238000001816 cooling Methods 0.000 claims 1
- 238000006722 reduction reaction Methods 0.000 description 37
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 23
- 229910000423 chromium oxide Inorganic materials 0.000 description 23
- 239000002689 soil Substances 0.000 description 17
- 238000012360 testing method Methods 0.000 description 16
- 239000011651 chromium Substances 0.000 description 15
- 239000002699 waste material Substances 0.000 description 15
- 239000000126 substance Substances 0.000 description 13
- 230000032683 aging Effects 0.000 description 12
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 8
- 239000010426 asphalt Substances 0.000 description 8
- 229910052804 chromium Inorganic materials 0.000 description 8
- 239000000203 mixture Substances 0.000 description 8
- 239000010801 sewage sludge Substances 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
- 230000007423 decrease Effects 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000006386 neutralization reaction Methods 0.000 description 4
- 239000004568 cement Substances 0.000 description 3
- 150000001845 chromium compounds Chemical class 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 239000011790 ferrous sulphate Substances 0.000 description 3
- 235000003891 ferrous sulphate Nutrition 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 3
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- -1 sodium dichromate Chemical class 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- JHWIEAWILPSRMU-UHFFFAOYSA-N 2-methyl-3-pyrimidin-4-ylpropanoic acid Chemical compound OC(=O)C(C)CC1=CC=NC=N1 JHWIEAWILPSRMU-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003673 groundwater Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 229910000669 Chrome steel Inorganic materials 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical compound [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 description 1
- 239000011398 Portland cement Substances 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 description 1
- 235000019345 sodium thiosulphate Nutrition 0.000 description 1
- 239000003516 soil conditioner Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 238000004056 waste incineration Methods 0.000 description 1
Images
Landscapes
- Fire-Extinguishing Compositions (AREA)
- Processing Of Solid Wastes (AREA)
- Treatment Of Sludge (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Description
Claims (2)
- 高炉徐冷スラグからなる還元処理剤であって、破砕されて粒径500μm〜10mmの大きさであるとともに、酸化数が+2価以下の硫黄を含む硫黄化合物を0.3mass%以上含む高炉徐冷スラグを少なくとも30mass%含むことを特徴とする6価クロムの溶出防止用還元処理剤。
- 被還元処理材に請求項1に記載の還元処理剤を混合して還元処理する方法において、上記還元処理剤を、混合の1週間前まで水と接触させないようにすることを特徴とする還元処理方法。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005131280A JP4692064B2 (ja) | 2005-04-28 | 2005-04-28 | 還元処理剤および還元処理方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005131280A JP4692064B2 (ja) | 2005-04-28 | 2005-04-28 | 還元処理剤および還元処理方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006305464A JP2006305464A (ja) | 2006-11-09 |
JP4692064B2 true JP4692064B2 (ja) | 2011-06-01 |
Family
ID=37472974
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005131280A Active JP4692064B2 (ja) | 2005-04-28 | 2005-04-28 | 還元処理剤および還元処理方法 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP4692064B2 (ja) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5011259B2 (ja) * | 2008-06-05 | 2012-08-29 | Jfeスチール株式会社 | 再生砂又は土工材として用いられる土木材料及びその製造方法 |
JP5407337B2 (ja) * | 2009-01-06 | 2014-02-05 | 大同特殊鋼株式会社 | 還元スラグの処理方法 |
JP5769920B2 (ja) * | 2009-10-27 | 2015-08-26 | Jfeスチール株式会社 | 土壌改良材 |
JP5940701B2 (ja) * | 2015-03-13 | 2016-06-29 | Jfeスチール株式会社 | 土壌改良材 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000093934A (ja) * | 1998-09-25 | 2000-04-04 | Kawasaki Steel Corp | クロム酸化物含有土壌の処理方法 |
JP2002248444A (ja) * | 1997-03-27 | 2002-09-03 | Kawasaki Steel Corp | クロム酸化物含有物質の処理方法 |
JP2003170152A (ja) * | 2001-12-04 | 2003-06-17 | Denki Kagaku Kogyo Kk | 六価クロム低減剤 |
JP2003290741A (ja) * | 2002-04-01 | 2003-10-14 | Denki Kagaku Kogyo Kk | 有害重金属低減材及びそれを用いた有害重金属低減方法 |
JP2004292806A (ja) * | 2003-03-07 | 2004-10-21 | Nippon Steel Corp | 土壌修復剤および土壌修復方法 |
-
2005
- 2005-04-28 JP JP2005131280A patent/JP4692064B2/ja active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002248444A (ja) * | 1997-03-27 | 2002-09-03 | Kawasaki Steel Corp | クロム酸化物含有物質の処理方法 |
JP2000093934A (ja) * | 1998-09-25 | 2000-04-04 | Kawasaki Steel Corp | クロム酸化物含有土壌の処理方法 |
JP2003170152A (ja) * | 2001-12-04 | 2003-06-17 | Denki Kagaku Kogyo Kk | 六価クロム低減剤 |
JP2003290741A (ja) * | 2002-04-01 | 2003-10-14 | Denki Kagaku Kogyo Kk | 有害重金属低減材及びそれを用いた有害重金属低減方法 |
JP2004292806A (ja) * | 2003-03-07 | 2004-10-21 | Nippon Steel Corp | 土壌修復剤および土壌修復方法 |
Also Published As
Publication number | Publication date |
---|---|
JP2006305464A (ja) | 2006-11-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4712483B2 (ja) | 重金属汚染土壌用処理組成物及び処理方法 | |
Magalhães et al. | Effect of experimental variables on the inertization of galvanic sludges in clay-based ceramics | |
JP5092203B2 (ja) | 廃棄物からのフッ素および重金属の溶出を抑制する方法 | |
JP4692064B2 (ja) | 還元処理剤および還元処理方法 | |
EP0869193B1 (en) | Method for processing chromium oxide-containing substances in large quantities | |
JP5769920B2 (ja) | 土壌改良材 | |
JP3299174B2 (ja) | クロム酸化物含有物質の処理方法 | |
JP3473444B2 (ja) | クロム酸化物含有物質の処理方法 | |
JP4725302B2 (ja) | 溶出成分含有物質の処理方法ならびに安定化資材およびその製造方法 | |
JP2002248444A (ja) | クロム酸化物含有物質の処理方法 | |
JP2005239509A (ja) | 鉄鋼スラグからのフッ素溶出抑制方法および土中埋設用材料 | |
JP3221564B2 (ja) | クロム酸化物含有物質の処理方法 | |
Cohen et al. | The application of batch extraction tests for the characterisation of solidified ferro alloy waste products | |
JP5470699B2 (ja) | 重金属含有塩基性廃棄物の無害化処理方法 | |
JP5940701B2 (ja) | 土壌改良材 | |
JP5077777B2 (ja) | 溶出低減材および溶出低減処理方法 | |
JP3221565B2 (ja) | クロム酸化物含有物質の処理方法およびそれを用いた路盤材、土木埋立用材、仮設材 | |
JP5337956B2 (ja) | クロム酸化物含有物質の処理方法 | |
JP3877583B2 (ja) | 六価クロム低減材 | |
JP2001121109A (ja) | 可溶性六価クロムを含有する構築物廃材の無害化処理方法 | |
JP4540350B2 (ja) | クロム酸化物含有スラグの処理方法 | |
JP4837258B2 (ja) | ステンレス鋼スラグの土中埋設方法および土中埋設用材料 | |
JPH0975897A (ja) | 廃棄物中の金属固定化方法 | |
JP6686982B2 (ja) | クロム酸化物含有物質の還元処理方法および土木工事用材料の製造方法 | |
JP6041006B2 (ja) | 土木材料用還元材 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20080325 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20090421 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20101026 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20101217 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20110125 |
|
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20110207 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20140304 Year of fee payment: 3 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 4692064 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |