Method for extracting valuable metal from clay type lithium ore step by step

Method for extracting valuable metal from clay type lithium ore step by step

The invention provides a method for extracting valuable metals from clay type lithium ores step by step, and relates to the technical field of lithium extraction. The method comprises the following steps: mixing clay type lithium ore and ammonium sulfate, granulating, and carrying out first roasting...

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Hauptverfasser: LI TUOFU, MA HANG, JIANG KAIXI, LI DA, ZHENG YONGMING, LU LONGHUA, LIU SANPING, LIU WENBIAO, DIAO MENGXIAO, RAO FENG, FENG HAIPENG
Format: Patent
Sprache:chi ; eng
Schlagworte:
CHEMISTRY
FERROUS OR NON-FERROUS ALLOYS
METALLURGY
PRETREATMENT OF RAW MATERIALS
PRODUCTION AND REFINING OF METALS
TREATMENT OF ALLOYS OR NON-FERROUS METALS
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creator LI TUOFU
MA HANG
JIANG KAIXI
LI DA
ZHENG YONGMING
LU LONGHUA
LIU SANPING
LIU WENBIAO
DIAO MENGXIAO
RAO FENG
FENG HAIPENG
description The invention provides a method for extracting valuable metals from clay type lithium ores step by step, and relates to the technical field of lithium extraction. The method comprises the following steps: mixing clay type lithium ore and ammonium sulfate, granulating, and carrying out first roasting to obtain a roasted product; the roasted product is subjected to reduction water leaching through sulfur dioxide, and leaching liquid and leaching residues are obtained through filtering; and carrying out low-temperature freezing crystallization on the leachate to obtain a crystallized product and crystallized liquid. According to the method, valuable metals in the clay type lithium ore are activated under the action of ammonium sulfate, the activated roasted product is subjected to reduction water leaching with sulfur dioxide, the valuable metals in the roasted product are dissolved out of an aqueous solution, the sulfur dioxide reduces dissolved-out ferric ions into ferrous ions, and the ferric ions in the roast
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subjects CHEMISTRY
FERROUS OR NON-FERROUS ALLOYS
METALLURGY
PRETREATMENT OF RAW MATERIALS
PRODUCTION AND REFINING OF METALS
TREATMENT OF ALLOYS OR NON-FERROUS METALS
title Method for extracting valuable metal from clay type lithium ore step by step
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