FOAM COMPOSITION FOR TREATING ASBESTOS-CONTAINING MATERIALS AND METHOD OF USING SAME

• Main Authors: NISHIOKA, GARY, MASARDI, KRUPKIN, NATALIA, VERA, LAU, JOHN, WING-KEUNG, KUESPERT, DANIEL, REID, BLOCK, JACOB, PALMER, NIGEL, INNES
• Format: Patent
• Language: English; French
• Published: 02.04.1998
• Edition: 6
• Subjects: CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS; CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING ORPROTECTING AGAINST HARMFUL CHEMICAL AGENTS; DISPOSAL OF SOLID WASTE; FIRE-FIGHTING; HUMAN NECESSITIES; LIFE-SAVING; PERFORMING OPERATIONS; RECLAMATION OF CONTAMINED SOIL SOIL; TRANSPORTING

A composition for transforming a chrysotile asbestos-containing material into a non-asbestos material is disclosed, wherein the composition comprises water, at least about 30 % by weight of an acid component, at least about 0.1 % by weight of a source of fluoride ions, and a stable foam forming amount of a foaming agent system having both cationic and non-ionic functionality. A method of transforming the asbestos-containing material into a non-asbestos material using the present composition in the form of a foam is also disclosed. L'invention porte sur une composition permettant de transformer un matériau contenant de l'amiante chrysotile en un matériau exempt d'amiante. Ladite composition comprend de l'eau, au moins environ 30 % en poids d'un composé acide, au moins d'environ 0,1 % en poids d'une source d'ions fluorure et une quantité stable formatrice de mousse d'un système d'agents formateurs de mousse à fonctions cationique et non ionique. L'invention porte également sur un procédé de transformation d'un matériau contenant de l'amiante en un matériau exempt d'amiante à l'aide de la susdite composition sous forme de mousse.