Method for preparing geopolymer finished product by utilizing Sichuan-Western typical rare earth tailings

The invention relates to a method for preparing a geopolymer finished product by utilizing Sichuan-Western typical rare earth tailings. A formula for solving the problem of low strength of a geopolymer finished product prepared from rare earth tailings comprises the following components in parts by...

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Main Authors TAO RAN, ZHONG LELE, HU SIXIAN, YANG XIAOJUN, WEN HANRUI, JU XING, ZHANG WEI, MAO SURONG
Format Patent
LanguageChinese
English
Published 17.04.2020
Subjects
ARTIFICIAL STONE
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
LIME, MAGNESIA
METALLURGY
REFRACTORIES
SLAG
TREATMENT OF NATURAL STONE
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Summary:The invention relates to a method for preparing a geopolymer finished product by utilizing Sichuan-Western typical rare earth tailings. A formula for solving the problem of low strength of a geopolymer finished product prepared from rare earth tailings comprises the following components in parts by mass: 25-100 parts of Sichuan western typical rare earth tailings, 80-120 parts of metakaolin, 5-50parts of silica fume, 28-40 parts of NaOH, 60-138 parts of water and 0.1-5 parts of a heavy metal source (lead salt Pb (NO3) 2). The preparation method comprises the following steps: roasting kaolin at 800 DEG C for 6 hours to obtain metakaolin with the same mass; NaOH is dissolved in water, silica fume is added and stirred until the silica fume is dissolved, Pb (NO3) 2 is added at the same time,metakaolin and rare earth tailings are added and stirred together when the temperature is reduced to 30-80 DEG C, an obtained evenly mixed slurry is poured into a mold to be formed; the 7d compressivestrength of the prepared g
Bibliography:Application Number: CN201911255254