Method for recovering multi-metal crystals and co-producing water glass from copper-nickel sulfide ore tailings

Method for recovering multi-metal crystals and co-producing water glass from copper-nickel sulfide ore tailings

The invention relates to a method for recovering multi-metal crystals and co-producing water glass from copper-nickel sulfide ore tailings, the method comprises the following steps: S1, mixing the copper-nickel sulfide ore tailings and an auxiliary agent according to a mass ratio of 1: (0.5-2), grin...

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Hauptverfasser: PAN AIFANG, MA RUNYONG, MA YUZHAO, SUN YUE
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Sprache:chi ; eng
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CHEMISTRY
COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F
COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS
COMPOUNDS THEREOF
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
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creator PAN AIFANG
MA RUNYONG
MA YUZHAO
SUN YUE
description The invention relates to a method for recovering multi-metal crystals and co-producing water glass from copper-nickel sulfide ore tailings, the method comprises the following steps: S1, mixing the copper-nickel sulfide ore tailings and an auxiliary agent according to a mass ratio of 1: (0.5-2), grinding to 200-300 meshes, carrying out aerobic roasting to obtain active clinker, and collecting furnace gas generated by roasting; the additive is sodium hydroxide or sodium carbonate; s2, leaching the active clinker with water to obtain water leaching residues and water leaching liquid containing sodium silicate; s3, carrying out carbonation decomposition on the water immersion liquid to obtain silica gel and Na2CO3 filtrate, wherein the Na2CO3 filtrate is used for S1; s4, fully oxidizing the furnace gas, collecting with water to obtain a sulfuric acid solution, adjusting the concentration to 1-6 mol/L, and leaching the water leaching residues to obtain acid leaching residues and a first filtrate; s5, heating and a
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subjects CHEMISTRY
COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F
COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS
COMPOUNDS THEREOF
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
title Method for recovering multi-metal crystals and co-producing water glass from copper-nickel sulfide ore tailings
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