TY - GEN
T1 - Safe decomposition of asbestos by mechano-chemical reaction
AU - Inoue, Ryo
AU - Kano, Junya
AU - Shimme, Kaoru
AU - Saito, Fumio
PY - 2007
Y1 - 2007
N2 - It is legally demanded that the wastes containing asbestos should be change to harmless substances completely due to the harmful effects of asbestos fiber on health. The purpose of present research was to construct a safe, reliable and facile technique by using mechano-chemical reaction, which is a non-combustion process and operated in a closed system. It was confirmed that the needle crystal of chrysotile asbestos was changed perfectly to amorphous state after grinding by using a planetary ball mill. Furthermore, these products could be remade to useful materials by addition of soil which consists of inorganic materials based on CaO and so one. After the obtained fine powders were mixed with water, pressed and held under the humid condition, the stable hydrates were found in these products after XRD analysis. These inorganic compounds were much useful as a new raw material for cement-like.
AB - It is legally demanded that the wastes containing asbestos should be change to harmless substances completely due to the harmful effects of asbestos fiber on health. The purpose of present research was to construct a safe, reliable and facile technique by using mechano-chemical reaction, which is a non-combustion process and operated in a closed system. It was confirmed that the needle crystal of chrysotile asbestos was changed perfectly to amorphous state after grinding by using a planetary ball mill. Furthermore, these products could be remade to useful materials by addition of soil which consists of inorganic materials based on CaO and so one. After the obtained fine powders were mixed with water, pressed and held under the humid condition, the stable hydrates were found in these products after XRD analysis. These inorganic compounds were much useful as a new raw material for cement-like.
KW - Asbestos
KW - Cement raw material
KW - Mechano-chemical treatment
KW - Planetary ball mill
UR - http://www.scopus.com/inward/record.url?scp=38349190100&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=38349190100&partnerID=8YFLogxK
U2 - 10.4028/0-87849-462-6.2257
DO - 10.4028/0-87849-462-6.2257
M3 - Conference contribution
AN - SCOPUS:38349190100
SN - 0878494626
SN - 9780878494620
T3 - Materials Science Forum
SP - 2257
EP - 2260
BT - Selected, peer reviewed papers from The Sixth Pacific Rim International Conference on Advanced Materials and Processing, PRICM 6
PB - Trans Tech Publications Ltd
T2 - 6th Pacific Rim International Conference on Advanced Materials and Processing, PRICM 6
Y2 - 5 November 2007 through 9 November 2007
ER -