WO2006052859A3 - In-situ treatment of asbestos-containing material - Google Patents

In-situ treatment of asbestos-containing material Download PDF

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Publication number
WO2006052859A3
WO2006052859A3 PCT/US2005/040235 US2005040235W WO2006052859A3 WO 2006052859 A3 WO2006052859 A3 WO 2006052859A3 US 2005040235 W US2005040235 W US 2005040235W WO 2006052859 A3 WO2006052859 A3 WO 2006052859A3
Authority
WO
WIPO (PCT)
Prior art keywords
asbestos
acm
polycarboxylic acid
acid
place
Prior art date
Application number
PCT/US2005/040235
Other languages
French (fr)
Other versions
WO2006052859A2 (en
Inventor
Paul W Brown
Original Assignee
352 East Irvin Avenue Ltd Part
Paul W Brown
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 352 East Irvin Avenue Ltd Part, Paul W Brown filed Critical 352 East Irvin Avenue Ltd Part
Publication of WO2006052859A2 publication Critical patent/WO2006052859A2/en
Publication of WO2006052859A3 publication Critical patent/WO2006052859A3/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09B—DISPOSAL OF SOLID WASTE
    • 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
    • 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
    • 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

Abstract

The present invention relates to methods for the in-situ treatment of ACM containing chrysotile asbestos using a polycarboxylic acid such as oxalic acid. The polycarboxylic acid is introduced to the ACM while it remains substantially in place, or 'in-situ,' and assists in converting the asbestos to a non-asbestos material. When the ACM is used as an insulating material, the asbestos fibers may be covered in gypsum that may be at least partially removed or dissolved away. The polycarboxylic acid may (1) directly attack the asbestos and/or (2) dissolve gypsum and form sulfuric acid capable of attacking the asbestos. Additional sulfuric acid may be introduced to assist in conversion of the asbestos to a non-asbestos form. Magnesium sulfate may be introduced to maintain the structural stability of the treated material thereby allowing it to substantially remain in place. Alternatively, the treated material may be safely removed for disposal.
PCT/US2005/040235 2004-11-08 2005-11-04 In-situ treatment of asbestos-containing material WO2006052859A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US62600904P 2004-11-08 2004-11-08
US60/626,009 2004-11-08

Publications (2)

Publication Number Publication Date
WO2006052859A2 WO2006052859A2 (en) 2006-05-18
WO2006052859A3 true WO2006052859A3 (en) 2006-07-27

Family

ID=36337094

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/040235 WO2006052859A2 (en) 2004-11-08 2005-11-04 In-situ treatment of asbestos-containing material

Country Status (1)

Country Link
WO (1) WO2006052859A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2772284B1 (en) 2013-02-26 2018-07-04 Korea Institute Of Geoscience & Mineral Resources Method of removing asbestos from asbestos-containing materials by 99% through low temperature heat treatment

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5173539A (en) * 1974-12-24 1976-06-25 Asahi Glass Co Ltd SETSUCHAKUSEISOSEIBUTSU
GB2015979A (en) * 1978-01-17 1979-09-19 Crisp S Treating asbestos
WO1988010234A1 (en) * 1987-06-26 1988-12-29 Forskningscenter Risø A method for treating asbestos
US5041277A (en) * 1989-06-15 1991-08-20 Austen Chase Industries, Inc. Method for treating asbestos
US5096692A (en) * 1989-06-29 1992-03-17 Ek Roger B Mineralogical conversion of asbestos waste
US5258131A (en) * 1990-04-13 1993-11-02 Austen-Chase Industries Inc. Products for treating asbestos
US5741358A (en) * 1996-09-27 1998-04-21 W. R. Grace & Co.-Conn. Corrosion inhibiting composition for treating asbestos containing materials
US5743841A (en) * 1996-09-27 1998-04-28 W. R. Grace & Co.-Conn. Foam composition for treating asbestos-containing materials and method of using same

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5173539A (en) * 1974-12-24 1976-06-25 Asahi Glass Co Ltd SETSUCHAKUSEISOSEIBUTSU
GB2015979A (en) * 1978-01-17 1979-09-19 Crisp S Treating asbestos
WO1988010234A1 (en) * 1987-06-26 1988-12-29 Forskningscenter Risø A method for treating asbestos
US5041277A (en) * 1989-06-15 1991-08-20 Austen Chase Industries, Inc. Method for treating asbestos
US5096692A (en) * 1989-06-29 1992-03-17 Ek Roger B Mineralogical conversion of asbestos waste
US5258131A (en) * 1990-04-13 1993-11-02 Austen-Chase Industries Inc. Products for treating asbestos
US5741358A (en) * 1996-09-27 1998-04-21 W. R. Grace & Co.-Conn. Corrosion inhibiting composition for treating asbestos containing materials
US5743841A (en) * 1996-09-27 1998-04-28 W. R. Grace & Co.-Conn. Foam composition for treating asbestos-containing materials and method of using same

Also Published As

Publication number Publication date
WO2006052859A2 (en) 2006-05-18

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