JP5889348B2 - 低温熱処理を用いた石綿含有物質から石綿を99%以上除去する方法 - Google Patents
低温熱処理を用いた石綿含有物質から石綿を99%以上除去する方法 Download PDFInfo
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- JP5889348B2 JP5889348B2 JP2014035221A JP2014035221A JP5889348B2 JP 5889348 B2 JP5889348 B2 JP 5889348B2 JP 2014035221 A JP2014035221 A JP 2014035221A JP 2014035221 A JP2014035221 A JP 2014035221A JP 5889348 B2 JP5889348 B2 JP 5889348B2
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- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims description 98
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- UHNWOJJPXCYKCG-UHFFFAOYSA-L magnesium oxalate Chemical compound [Mg+2].[O-]C(=O)C([O-])=O UHNWOJJPXCYKCG-UHFFFAOYSA-L 0.000 claims description 8
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- CWBIFDGMOSWLRQ-UHFFFAOYSA-N trimagnesium;hydroxy(trioxido)silane;hydrate Chemical compound O.[Mg+2].[Mg+2].[Mg+2].O[Si]([O-])([O-])[O-].O[Si]([O-])([O-])[O-] CWBIFDGMOSWLRQ-UHFFFAOYSA-N 0.000 description 2
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D3/00—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances
- A62D3/30—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by reacting with chemical agents
- A62D3/36—Detoxification by using acid or alkaline reagents
-
- 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
- B09B3/0066—Disposal of asbestos
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D2101/00—Harmful chemical substances made harmless, or less harmful, by effecting chemical change
- A62D2101/40—Inorganic substances
- A62D2101/41—Inorganic fibres, e.g. asbestos
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- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
Description
また、従来の方法で石綿を除去する場合は、石綿を50乃至90%除去することができるが、石綿が1%以上含まれた場合は、取扱及び移動が法的で禁止されているため、石綿を99%以上除去することができる方法が必要である。
平均粒度=[6/(比表面積×比重)×1000]
ここで、比表面積は、m2/g、粒度は、nm、比重は、g/cm3である。
325メッシュ(40マイクロン)、200メッシュ(75マイクロン)、2mm、3mm、5mmなどの破砕及び粉砕された蛇紋石の比表面積はそれぞれ、0.06mm2/g、0.032mm2/g、0.0012m2/g、0.0008m2/g、0.00048m2/gである。
Mg3Si2O5(OH)4+3C2H2O4=3MgC2O4+2SiO2+10H2O
シュウ酸6.5gを溶解した溶液を用いたことを除き、前記実施例1と同様な方法で蛇紋石を無害化させた。
シュウ酸1gを溶解させた溶液を使用したことを除き、前記実施例1と同様な方法で、蛇紋石を無害化させた。
廃スレート板を4〜5mm程度のサイズに破砕及び湿式粉碎し、顕微鏡で破砕及び粉砕した廃スレート表面に含まれている石綿の量を測定した。石綿の量は、13%程度であった。前記破砕及び粉砕した廃スレートの比表面積を測定しており、破砕及び粉砕した廃スレート20gとシュウ酸20gが溶解した溶液を混合した後、アルミナ反応容器に入れて、100℃で30分間熱処理して、廃スレートを無害化した。
廃スレート20gとシュウ酸2gが溶解した溶液とを混合したことを除き、前記実施例4と同様な方法で廃スレートを無害化させた。
廃スレート5gとシュウ酸2gが溶解した溶液とを混合したことを除き、前記実施例4と同様な方法で、廃スレートを無害化させた。
廃スレート4500gとシュウ酸45gが溶解した溶液とを混合したことを除き、前記実施例4と同様な方法で、廃スレートを無害化させた。
廃スレート4500gとシュウ酸9gが溶解した溶液とを混合したことを除き、前記実施例4と同様な方法で、廃スレートを無害化させた。
廃スレート4500gとシュウ酸5850gが溶解した溶液とを混合した後、アルミナ反応容器に入れて、100℃で30分間熱処理して、廃スレートを処理した。
廃スレート20gとシュウ酸26gとを混合し、85℃で熱処理したことを除き、前記比較例1と同様な方法で、廃スレートを処理した。
石綿除去前の蛇紋石原鉱に含まれた石綿含量と、本発明による除去方法で処理された前記実施例1乃至4の石綿含量とを調べるために、走査電子顕微鏡(SEM)で分析し、その結果を図3及び図4に示した。
Claims (3)
- 0.1〜30mmのサイズに破砕又は粉砕された自然産蛇紋石、又は、1×1mm2〜1×1m2のサイズに破砕又は粉砕された廃スレートとシュウ酸とを1:0.002〜1:1の重量比で混合した後、90〜110℃で熱処理して、前記石綿含有物質における繊維状の石綿から六面体構造のマグネシウムオキサレートを形成させて石綿の99%以上が除去されることを特徴とする低温熱処理を用いた石綿含有物質から石綿を除去する方法。
- 前記シュウ酸は、水道水、蒸留水、及び、脱イオン水からなる群から選ばれる1種以上に希釈させることを特徴とする請求項1に記載の低温熱処理を用いた石綿含有物質から石綿を除去する方法。
- 前記破砕は、ジョークラッシャ(Jaw crusher)及びコーンクラッシャ(Cone crusher)で行われ、前記粉砕は、微粉砕機(Pulverizer)で行われることを特徴とする請求項1に記載の低温熱処理を用いた石綿含有物質から石綿を除去する方法。
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2013-0020445 | 2013-02-26 | ||
KR20130020445 | 2013-02-26 | ||
KR10-2013-0031465 | 2013-03-25 | ||
KR20130031465 | 2013-03-25 | ||
KR1020140010260A KR101535274B1 (ko) | 2014-01-28 | 2014-01-28 | 저온 열처리를 이용한 석면 함유 물질로부터 석면을 99% 이상 제거하는 방법 |
KR10-2014-0010260 | 2014-01-28 |
Publications (2)
Publication Number | Publication Date |
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JP2014161848A JP2014161848A (ja) | 2014-09-08 |
JP5889348B2 true JP5889348B2 (ja) | 2016-03-22 |
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JP2014035221A Expired - Fee Related JP5889348B2 (ja) | 2013-02-26 | 2014-02-26 | 低温熱処理を用いた石綿含有物質から石綿を99%以上除去する方法 |
Country Status (4)
Country | Link |
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US (1) | US9079055B2 (ja) |
EP (1) | EP2772284B1 (ja) |
JP (1) | JP5889348B2 (ja) |
CN (1) | CN104003756A (ja) |
Families Citing this family (3)
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FR3026032B1 (fr) * | 2014-09-22 | 2020-10-30 | Paul Poggi | Unite mobile de neutralisation d'amiante |
KR101708804B1 (ko) * | 2016-08-05 | 2017-02-22 | 한국지질자원연구원 | 석면 무해화를 위한 옥살산 수용액 농도 결정방법 |
CN110127710A (zh) * | 2019-06-10 | 2019-08-16 | 河南师范大学 | 一种水合硅酸钙镁流变剂及其节能环保型生产工艺 |
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DE69031657T2 (de) | 1989-06-15 | 1998-06-10 | Tony Nocito Inc | Verfahren und erzeugnisse für die asbestbehandlung |
JPH0366976A (ja) | 1989-08-02 | 1991-03-22 | Mazda Motor Corp | 自動変速機の油圧制御装置 |
CN101048342A (zh) * | 2004-10-25 | 2007-10-03 | 株式会社野泽 | 包含通过分解温石棉而获得的硅石作为构成材料的可固化组合物及固化体 |
WO2006052859A2 (en) * | 2004-11-08 | 2006-05-18 | 352 East Irvin Avenue Limited Partnership | In-situ treatment of asbestos-containing material |
US20060106272A1 (en) * | 2004-11-16 | 2006-05-18 | Brown Paul W | In-situ treatment of asbestos-containing material |
JP2007222698A (ja) * | 2005-12-28 | 2007-09-06 | Restoration Kankyo Rebirth:Kk | 鉱物繊維の溶融処理方法及び装置 |
JP2008049205A (ja) * | 2006-03-30 | 2008-03-06 | Taiheiyo Cement Corp | クリソタイルまたはクリソタイル含有物の処理方法 |
JP4602951B2 (ja) | 2006-08-09 | 2010-12-22 | 太平洋セメント株式会社 | アスベスト含有廃材の処理方法 |
JP2011072916A (ja) * | 2009-09-30 | 2011-04-14 | Sumitomo Osaka Cement Co Ltd | アスベスト含有廃材の無害化処理方法 |
JP5625468B2 (ja) * | 2010-04-12 | 2014-11-19 | 広喜 上坂 | 水和反応によるアスベスト無害化処理 |
KR101255849B1 (ko) | 2010-07-01 | 2013-04-17 | 한국지질자원연구원 | 섬유상의 석면을 입방형의 탄산칼슘으로 변형시키는 방법 |
KR101187817B1 (ko) | 2010-09-06 | 2012-10-05 | 한국지질자원연구원 | 광물탄산화를 위한 원료용 사문석의 전처리 방법 |
KR101302473B1 (ko) | 2011-03-29 | 2013-09-02 | 주식회사 케이씨씨 | 석면 무해화 처리방법 및 이에 사용되는 칼슘화합물 반응액 |
KR101326741B1 (ko) | 2013-06-25 | 2013-11-08 | 한국지질자원연구원 | 폐슬레이트의 석면 무해화 처리 방법, 및 이렇게 하여 얻은 무해화된 석면 |
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2014
- 2014-02-18 EP EP14155604.3A patent/EP2772284B1/en not_active Not-in-force
- 2014-02-25 US US14/189,519 patent/US9079055B2/en not_active Expired - Fee Related
- 2014-02-26 JP JP2014035221A patent/JP5889348B2/ja not_active Expired - Fee Related
- 2014-02-26 CN CN201410067033.8A patent/CN104003756A/zh active Pending
Also Published As
Publication number | Publication date |
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JP2014161848A (ja) | 2014-09-08 |
US9079055B2 (en) | 2015-07-14 |
CN104003756A (zh) | 2014-08-27 |
US20140243575A1 (en) | 2014-08-28 |
EP2772284B1 (en) | 2018-07-04 |
EP2772284A1 (en) | 2014-09-03 |
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Free format text: JAPANESE INTERMEDIATE CODE: R250 |
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LAPS | Cancellation because of no payment of annual fees |