Method for increasing manganese leaching rate of rhodochrosite

Method for increasing manganese leaching rate of rhodochrosite

The invention discloses a method for increasing the manganese leaching rate of rhodochrosite. The method comprises the steps that (1) concentrated sulfuric acid and water are added into rhodochrosite, the mass ratio of concentrated sulfuric acid to rhodochrosite is 1.1-1.2 times the theoretical valu...

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Hauptverfasser: LYU KANGLE, LI JIA, MEI JINGKUN, YE HENGPENG, DU DONGYUN, LI JINLIN, CHEN MENGQI
Format: Patent
Sprache:chi ; eng
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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 LYU KANGLE
LI JIA
MEI JINGKUN
YE HENGPENG
DU DONGYUN
LI JINLIN
CHEN MENGQI
description The invention discloses a method for increasing the manganese leaching rate of rhodochrosite. The method comprises the steps that (1) concentrated sulfuric acid and water are added into rhodochrosite, the mass ratio of concentrated sulfuric acid to rhodochrosite is 1.1-1.2 times the theoretical value, the mass ratio of water to rhodochrosite is (6-7):1, a mixture is heated to 55-60 DEG C while being stirred, and continues to be stirred and reacted for 30-60 min, and a solid-liquid mixture is obtained; and (2) an additive, namely hexadecyl trimethyl ammonium bromide is added into the solid-liquid mixture obtained in the step (1), the mass of hexadecyl trimethyl ammonium bromide is 0.01%-0.02% of the mass of rhodochrosite, the solid-liquid mixture continues to be stirred and reacted for 3-3.5 hours at the temperature of 55-60 DEG C, and then the solid-liquid mixture is filtered to obtain filtrate, so that manganese leachate is obtained. The method is simple, operation is convenient, the cost is low, the mangane
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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 increasing manganese leaching rate of rhodochrosite
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