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1. WO1991000123 - MINERALOGICAL CONVERSION OF ASBESTOS WASTE

Publication Number WO/1991/000123
Publication Date 10.01.1991
International Application No. PCT/US1990/003803
International Filing Date 29.06.1990
Chapter 2 Demand Filed 29.01.1991
IPC
A62D 3/00 2007.01
AHUMAN NECESSITIES
62LIFE-SAVING; FIRE-FIGHTING
DCHEMICAL MEANS FOR EXTINGUISHING FIRES; PROCESSES FOR MAKING HARMFUL CHEMICAL SUBSTANCES HARMLESS, OR LESS HARMFUL, BY EFFECTING A CHEMICAL CHANGE; COMPOSITION OF MATERIALS FOR COVERINGS OR CLOTHING FOR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; COMPOSITION OF MATERIALS FOR TRANSPARENT PARTS OF GAS-MASKS, RESPIRATORS, BREATHING BAGS OR HELMETS; COMPOSITION OF CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
3Processes for making harmful chemical substances harmless, or less harmful, by effecting a chemical change in the substances
B09B 3/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
09DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
BDISPOSAL OF SOLID WASTE
3Destroying solid waste or transforming solid waste into something useful or harmless
CPC
A62D 2101/41
AHUMAN NECESSITIES
62LIFE-SAVING; FIRE-FIGHTING
DCHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
2101Harmful chemical substances made harmless, or less harmful, by effecting chemical change
40Inorganic substances
41Inorganic fibres, e.g. asbestos
A62D 3/36
AHUMAN NECESSITIES
62LIFE-SAVING; FIRE-FIGHTING
DCHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
3Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances
30by reacting with chemical agents
36Detoxification by using acid or alkaline reagents
A62D 3/40
AHUMAN NECESSITIES
62LIFE-SAVING; FIRE-FIGHTING
DCHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
3Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances
40by heating to effect chemical change, e.g. pyrolysis
B09B 3/0066
BPERFORMING OPERATIONS; TRANSPORTING
09DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
BDISPOSAL OF SOLID WASTE
3Destroying solid waste or transforming solid waste ; or contaminated solids; into something useful or harmless
0066Disposal of asbestos
Applicants
  • EK, Roger, B. [US/US]; US
Inventors
  • EK, Roger, B.; US
Agents
  • HERMANNS, Karl, R. ; Seed and Berry 6300 Columbia Center Seattle, WA 98104-7092, US
Priority Data
374,40429.06.1989US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) MINERALOGICAL CONVERSION OF ASBESTOS WASTE
(FR) TRANSFORMATION MINERALOGIQUE DE DECHES D'AMIANTE
Abstract
(EN)
There is provided a process for the mineralogical conversion of waste asbestos to a non-asbestos product. The waste asbestos is treated with a mineralizing agent and then heated for a period of time sufficient to convert the asbestos to the non-asbestos product. The mineralizing agent is preferably a water-soluble alkali metal borate or alkali metal silicate.
(FR)
Procédé de transformation minéralogique de déchets d'amiante en un produit different. Les déchets sont traités avec un agent minéralisant et ensuite chauffés pendant une période suffisante pour transformer l'amiante en un produit différent. L'agent minéralisateur est de préférence un borate métallique alcalin ou un silicate métallique alcalin soluble dans l'eau.
Also published as
Latest bibliographic data on file with the International Bureau