Method of converting asbestos cement into a harmless product

Details Method of converting asbestos cement into a harmless product Method of converting asbestos cement into a harmless product

C - Chemistry, Metallurgy

04

B

C04B 35/16 (2006.01) B09B 3/00 (2006.01) C03C 13/00 (2006.01) C03C 13/06 (2006.01) C04B 20/02 (2006.01) C04B 35/18 (2006.01) C04B 35/20 (2006.01) C04B 35/22 (2006.01) D01F 9/08 (2006.01) A62D 3/00 (2006.01)

Patent

CA 2159215

Asbestos cement may be converted to a harmless product by melting at a melt temperature of 1400 to 1700 °C a blend of 50 to 85 % by weight asbestos cement with 15 to 50 % by weight of additives that include naturally occurring silicate material such that the total blend has a CaO content of not more than 50 %. The melt is discharged from the furnace, cooled and solidified and may be used as aggregate or, generally after solidification as regular units, may be used as part or all of the charge for producing MMV fibre material. It is of particular value for the production of man made vitreous fibre material that has low alumina content and is soluble in lung fluids.

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