CN103469246A - Iron removal method in production of manganese metal through electrolysis - Google Patents

Iron removal method in production of manganese metal through electrolysis Download PDF

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Publication number
CN103469246A
CN103469246A CN2013103966917A CN201310396691A CN103469246A CN 103469246 A CN103469246 A CN 103469246A CN 2013103966917 A CN2013103966917 A CN 2013103966917A CN 201310396691 A CN201310396691 A CN 201310396691A CN 103469246 A CN103469246 A CN 103469246A
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China
Prior art keywords
electrolysis
iron
production
iron removal
manganese metal
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Pending
Application number
CN2013103966917A
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Chinese (zh)
Inventor
贾天将
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NINGXIA TIANYUAN MANGANESE Ltd Co
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NINGXIA TIANYUAN MANGANESE Ltd Co
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Application filed by NINGXIA TIANYUAN MANGANESE Ltd Co filed Critical NINGXIA TIANYUAN MANGANESE Ltd Co
Priority to CN2013103966917A priority Critical patent/CN103469246A/en
Publication of CN103469246A publication Critical patent/CN103469246A/en
Pending legal-status Critical Current

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Abstract

The invention provides an iron removal method in production of a manganese metal through electrolysis and relates to improvement of an electrolysis original solution used for producing manganese metal through electrolysis. The iron removal method is characterized in that after a fine manganese ore raw material is added into a return anode liquor and sulphuric acid is added for leaching, firstly solid-liquid separation is carried out on leached slurry, adding ammonia water into the separated leachate for neutralizing, and then adding an oxidizer for removing iron. The iron removal method in production of the manganese metal through electrolysis has the advantages that the previous and existing oxidation iron removal process is adjusted to be once filter pressing, so that consumption of the raw material and auxiliary materials is effectively reduced, the production cost is saved, the labour intensity of workers is reduced, the safety in a production process is improved, the potential safety hazard is reduced, and the time of an iron removal process is shortened.

Description

A kind of method for removing iron of electrolysis production manganese metal
Technical field
A kind of method for removing iron of electrolysis production manganese metal, relate to a kind of electrolytic solution preparation method's of electrolysis production manganese metal improvement.
Background technology
Manganese and manganese alloy are the indispensable important source material such as Iron And Steel Industry, aluminium alloy industry, magnetic material industry, chemical industry.Electrolytic process is that the process of production manganese metal is after processing by manganese carbonate ore manganese or by manganese oxide ore, utilizing sulfuric acid and manganous carbonate to carry out Chemical Leaching reacts, be prepared as electrolytic solution by series of process such as neutralization, purification, filtrations again, then enter electrolyzer and carry out electrolysis and make manganese metal.
At present, the iron removal in the electrolytic solution preparation process, after normally the manganese in breeze leaching enters solution, after leaching slip and being neutralized (tune pH value), add oxygenant to carry out deironing.In infusion solution, the form of Fe (PH=3.5) before neutralization is with FeSO 4form exist in solution.Adopt oxygenant to carry out deironing by FeSO 4be oxidized to Fe 2(SO 4) 3, when pH value is adjusted near neutrality, Fe 2(SO 4) 3just be easy to be hydrolyzed into Fe (OH) 3and precipitate indivisible FeSO 4(part do not contacted with air) after neutralizing hydrolysis with Fe (OH) 2form precipitate, thereby reach the purpose of deironing, reaction equation is: Fe 2++ 2OH-=Fe(OH) 2↓ (PH=6.0).
Because the leached material slurry liquid contains a large amount of slag phases, the total amount of slip is large, and slag makes the consumption of neutralizing agent and oxygenant mutually also containing a large amount of other impurity, causes the raw and auxiliary material consumption of production process, makes production cost high, and the technological operation difficulty is large.
Summary of the invention
Purpose of the present invention is exactly the deficiency existed for above-mentioned prior art, provides a kind of and can effectively reduce raw and auxiliary material consumption, the method for removing iron of the electrolysis production manganese metal reduced production costs.
The objective of the invention is to be achieved through the following technical solutions.
A kind of method for removing iron of electrolysis production manganese metal, it is characterized in that manganese ore raw material breeze is added return anolyte and add sulfuric acid leaching after, first leached slurry and carried out solid-liquid separation, after adding ammoniacal liquor to be neutralized in isolated leach liquor, then add oxygenant to carry out deironing.
The method for removing iron of a kind of electrolysis production manganese metal of the present invention, is characterized in that described solid-liquid separation process adopts filter-pressing method.
The method for removing iron of a kind of electrolysis production manganese metal of the present invention, is characterized in that oxygenant that described iron removal adopts is Manganse Dioxide, hydrogen peroxide, airborne one or two or more kinds mixing.
The method for removing iron of a kind of electrolysis production manganese metal of the present invention, after the process of former existing iron removal by oxidation is adjusted to a press filtration, effectively reduce raw and auxiliary material consumption, save production cost, alleviated workman's labour intensity, improve the security in the production process, reduced potential safety hazard, and shortened the time of iron removal step.
Embodiment
A kind of method for removing iron of electrolysis production manganese metal, be manganese ore raw material breeze is added return anolyte and add sulfuric acid leaching after, first leached slurry and carried out solid-liquid separation, after adding ammoniacal liquor to be neutralized in isolated leach liquor, then add oxygenant to carry out deironing.
Embodiment
Manganese carbonate ore manganese or manganese oxide ore is processed after, utilizing sulfuric acid and manganous carbonate to carry out Chemical Leaching reacts, after reaching the leaching terminal, carry out the press filtration solid-liquid separation, when pH value is adjusted to 6.4-7.0, drop into Manganse Dioxide, hydrogen peroxide, airborne one or two or more kinds the oxygenant of mixing carries out the iron removal by oxidation reaction, after operation is carried out 30 minutes, start sampling, analyze the iron level in liquid, until after doing the sample analysis and reaching micro-iron, then carry out conventional removing heavy metals operation and rear prologue.
Various supplementary product onsumption contrasts (Kg/m3)
Annotate: above consumption is all contrasted with the same mineral resources.

Claims (3)

1. the method for removing iron of an electrolysis production manganese metal, it is characterized in that manganese ore raw material breeze is added return anolyte and add sulfuric acid leaching after, at first leached slurry and carried out solid-liquid separation, after adding ammoniacal liquor to be neutralized in isolated leach liquor, then add oxygenant to carry out deironing.
2. the method for removing iron of a kind of electrolysis production manganese metal according to claim 1, is characterized in that described solid-liquid separation process adopts filter-pressing method.
3. the method for removing iron of a kind of electrolysis production manganese metal according to claim 1, is characterized in that oxygenant that described iron removal adopts is Manganse Dioxide, hydrogen peroxide, airborne one or two or more kinds mixing.
CN2013103966917A 2013-09-04 2013-09-04 Iron removal method in production of manganese metal through electrolysis Pending CN103469246A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2013103966917A CN103469246A (en) 2013-09-04 2013-09-04 Iron removal method in production of manganese metal through electrolysis

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2013103966917A CN103469246A (en) 2013-09-04 2013-09-04 Iron removal method in production of manganese metal through electrolysis

Publications (1)

Publication Number Publication Date
CN103469246A true CN103469246A (en) 2013-12-25

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104018184A (en) * 2014-06-25 2014-09-03 张安良 Brand new method of producing electrolytic manganese metal
CN110257851A (en) * 2019-06-11 2019-09-20 湖南顺隆能源有限公司 A kind of lithium manganate battery electrolysis special manganese dioxide and preparation method thereof
CN111041247A (en) * 2019-12-11 2020-04-21 遵义天磁锰业集团有限公司 Preparation method of normal-temperature ferric oxide desulfurizer based on manganese metal liquid preparation

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB848374A (en) * 1957-09-11 1960-09-14 Union Carbide Corp Improvements in the production of cell feed solutions for the electrowinning of manganese
CN1724697A (en) * 2004-07-19 2006-01-25 中南大学 Method of manufacturing electrolytic metal manganese using titanium white waste acid and manganese dioxide ore
CN101787546A (en) * 2010-04-09 2010-07-28 汪云华 Method utilizing titanium white waste acid to prepare electrolytic manganese metal
CN101988154A (en) * 2010-11-09 2011-03-23 湖南科技大学 New technology for preparing electrolytic manganese metal solution and recycling iron by reducing pyrolusite with iron scraps
CN102226235A (en) * 2011-06-14 2011-10-26 重庆武陵锰业有限公司 Method for producing manganese electrolyte by using continuous countercurrent leaching

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB848374A (en) * 1957-09-11 1960-09-14 Union Carbide Corp Improvements in the production of cell feed solutions for the electrowinning of manganese
CN1724697A (en) * 2004-07-19 2006-01-25 中南大学 Method of manufacturing electrolytic metal manganese using titanium white waste acid and manganese dioxide ore
CN101787546A (en) * 2010-04-09 2010-07-28 汪云华 Method utilizing titanium white waste acid to prepare electrolytic manganese metal
CN101988154A (en) * 2010-11-09 2011-03-23 湖南科技大学 New technology for preparing electrolytic manganese metal solution and recycling iron by reducing pyrolusite with iron scraps
CN102226235A (en) * 2011-06-14 2011-10-26 重庆武陵锰业有限公司 Method for producing manganese electrolyte by using continuous countercurrent leaching

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104018184A (en) * 2014-06-25 2014-09-03 张安良 Brand new method of producing electrolytic manganese metal
CN110257851A (en) * 2019-06-11 2019-09-20 湖南顺隆能源有限公司 A kind of lithium manganate battery electrolysis special manganese dioxide and preparation method thereof
CN111041247A (en) * 2019-12-11 2020-04-21 遵义天磁锰业集团有限公司 Preparation method of normal-temperature ferric oxide desulfurizer based on manganese metal liquid preparation

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Application publication date: 20131225