C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
25/124, 261/38,
C04B 35/10 (2006.01) B01J 6/00 (2006.01) B01J 13/04 (2006.01) C04B 35/111 (2006.01) C04B 35/18 (2006.01) C09K 8/80 (2006.01) E21B 43/267 (2006.01)
Patent
CA 2033131
ABSTRACT A calcined microsphere of ultrafine bauxite particles having a mean particle size in the range 0.01 to 0.3 micrometers, said microsphere having a particle size less than 30 micrometers and being characterised by a substantially solid form having a pycnometric density substantially falling in the range 3.2 - 3.9 g/cm3, a BET surface area substantially falling in the range 0.05 to 0.5 m2/g and a crystal grain size less than 4 micrometers, the surface chemistry of the microsphere and to improve its ability to bond strongly with matrix materials in use. !tbspe.007/comalco 90 12 21
Couper Malcolm James
Edwards Leslie Charles
Heathcock Christopher John
Shaw Raymond Walter
Smith Thomas Keith
Comalco Aluminium Limited
Ridout & Maybee Llp
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