Magnetic cement-bound bodies

Details Magnetic cement-bound bodies Magnetic cement-bound bodies

C - Chemistry, Metallurgy

04

B

C04B 14/34 (2006.01) C04B 7/52 (2006.01) C04B 20/00 (2006.01) C04B 28/02 (2006.01) H01F 1/08 (2006.01) H01F 1/113 (2006.01) H01F 1/24 (2006.01) H02K 1/02 (2006.01) H02K 1/06 (2006.01) H02K 5/02 (2006.01) H02K 5/04 (2006.01)

Patent

CA 2096351

2096351 9208678 PCTABS00013 Castable and curable cement-based powder compositions comprising: i) particles of a magnetic or magnetizable particulate material, and ii) a subcomposition including: cement particles, ultrafine particles of an inorganic material, said ultrafine particles having an average particle size in the range of 0.002-2 µm, and a surface-active dispersing agent in an amount of 0.1-4 % by weight dispersing agent based on the total weight of said cement particles and said ultrafine particles, said ultrafine particles constituting 3-30 % by volume of said powder composition, said cement particles constituting 2-70 % by volume of said powder composition, said particles of said magnetic or magnetizable particulate material constituting 10-95 % by volume, preferably 30-95 % by volume of said powder composition, and said particles of said subcomposition having an average particle size of at the most 10 µm; cement-bound bodies having magnetic or magnetizable properties produced from such compositions, and methods of producing such bodies.

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