Process for removing oxalate from Bayer process seeded precipitation mother liquor

Process for removing oxalate from Bayer process seeded precipitation mother liquor

The invention belongs to the technical field of metallurgy, and particularly relates to a process for removing oxalate from Bayer process seeded precipitation mother liquor. The method includes the steps of: performing primary cooling on the group C mother liquor and the low-evaporation mother liquo...

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Hauptverfasser: SHI YAFEI, HE JING, SUN CHUNLIANG, HAO YUEPENG, LIU QUAN, XU FUJUN, WANG JIUFU, SHEN LE, DU JINLING, SHEN WENHUI, GAO HUI, PAN SHOUDAO
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Sprache:chi ; eng
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CHEMISTRY
COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS
INORGANIC CHEMISTRY
METALLURGY
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creator SHI YAFEI
HE JING
SUN CHUNLIANG
HAO YUEPENG
LIU QUAN
XU FUJUN
WANG JIUFU
SHEN LE
DU JINLING
SHEN WENHUI
GAO HUI
PAN SHOUDAO
description The invention belongs to the technical field of metallurgy, and particularly relates to a process for removing oxalate from Bayer process seeded precipitation mother liquor. The method includes the steps of: performing primary cooling on the group C mother liquor and the low-evaporation mother liquor by a spiral plate heat exchanger through a mother liquor pump, and mixing in a 9 # washing settling tank; conveying the mixed mother liquor in the No.9 washing settling tank to a plate-and-frame filter press through an underflow pump to filter suspended matters, and returning a filter cake to a seed precipitation system; performing secondary cooling on the filtrate in the step 2 through a spiral plate heat exchanger; feeding the filtrate into a reaction tank, and after the filtrate reaches a specified liquid level, adding a sodium oxalate crystallization growth substance for a removal reaction; feeding the mother liquor obtained after reaction in the fourth step to a plate-and-frame filter press through a mother
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subjects CHEMISTRY
COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS
INORGANIC CHEMISTRY
METALLURGY
title Process for removing oxalate from Bayer process seeded precipitation mother liquor
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