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Bayer-process red mud spherical lightweight filter material and preparation method thereof
The invention relates to a Bayer-process red mud spherical lightweight filter material and a preparation method thereof. The Bayer-process red mud spherical lightweight filter material comprises the following raw materials by mass: 40 to 60% of waste Bayer-process red mud, 20 to 40% of silt, 20 to 40% of a feldspar raw material and 0 to 20% of a pore forming agent, wherein the mass fractions of the waste Bayer-process red mud, the silt and the feldspar raw material sum to 100%, and the pore forming agent accounts for the total mass of the waste Bayer-process red mud, the silt and the feldspar raw material. The spherical lightweight filter material has the characteristics of adjustable density, particle size and pore morphology, no damage under the condition of 800-DEG C thermal shock and resistance to chemical corrosion, accords with the policy of energy saving and emission reduction in China and meets national standard requirements.
Bayer-process red mud spherical lightweight filter material and preparation method thereof
The invention relates to a Bayer-process red mud spherical lightweight filter material and a preparation method thereof. The Bayer-process red mud spherical lightweight filter material comprises the following raw materials by mass: 40 to 60% of waste Bayer-process red mud, 20 to 40% of silt, 20 to 40% of a feldspar raw material and 0 to 20% of a pore forming agent, wherein the mass fractions of the waste Bayer-process red mud, the silt and the feldspar raw material sum to 100%, and the pore forming agent accounts for the total mass of the waste Bayer-process red mud, the silt and the feldspar raw material. The spherical lightweight filter material has the characteristics of adjustable density, particle size and pore morphology, no damage under the condition of 800-DEG C thermal shock and resistance to chemical corrosion, accords with the policy of energy saving and emission reduction in China and meets national standard requirements.
Bayer-process red mud spherical lightweight filter material and preparation method thereof
YE FEN (author) / YANG GUIPING (author) / TENG FANGXIONG (author) / WANG HUI (author) / XIAO HOUYOU (author)
2016-02-03
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
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