CN109809492A - A kind of manganese tailings comprehensive Processing tecchnics - Google Patents
A kind of manganese tailings comprehensive Processing tecchnics Download PDFInfo
- Publication number
- CN109809492A CN109809492A CN201711152042.7A CN201711152042A CN109809492A CN 109809492 A CN109809492 A CN 109809492A CN 201711152042 A CN201711152042 A CN 201711152042A CN 109809492 A CN109809492 A CN 109809492A
- Authority
- CN
- China
- Prior art keywords
- manganese
- sulfide
- calcium
- chloride
- ferrous
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Manufacture And Refinement Of Metals (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
The present invention provides a kind of manganese tailings comprehensive Processing tecchnics, manganese tailing is crushed as 80-100 mesh, is reacted with excessive dilute hydrochloric acid, is filtered, obtain filtrate；Excessive potassium sulfide is added in resulting filtrate, filtering reacting liquid obtains the filter cake of Containing Sulfur manganese, ferrous sulfide and calcium sulfide；The filter cake of Containing Sulfur manganese, ferrous sulfide and calcium sulfide is reacted with sulfuric acid solution, filtering, obtain the filtrate of calcium sulfate filter cake and sulfur acid manganese and ferrous sulfate, the filtrate decompression of sulfur acid manganese and ferrous sulfate is distilled for saturated solution, according to the difference of the solubility at different temperatures of manganese sulfate and ferrous sulfate, crystallisation by cooling at different temperature, manganese sulfate crystal and errous sulfate crystal are precipitated respectively, filtering, it is dry, it obtains respectively obtaining manganese sulfate product, ferrous sulfate product；Calcium sulfate filter cake washing, dry and crushing, obtain calcium sulfate product.
Description
Technical field
The present invention relates to a kind of manganese tailings comprehensive Processing tecchnics.
Background technique
In modern industry, the every field of manganese and its compound applied to national economy.Wherein steel and iron industry is most important
Field, 90%~95% is accounted for manganese amount, mainly as the deoxidier and desulfurizing agent in ironmaking and steelmaking process, and for making
Make alloy.Remaining 10%~5% manganese is used for other industrial circles, such as chemical industry (manufacturing various manganese containing salt classes), light industry
(for battery, match, print paint, soapmaking etc.), building materials industry (colorant and decolourant of glass and ceramics), national defense industry, electricity
Sub- industry and environmental protection and farming and animal husbandry, etc..In short, manganese has highly important strategic position in national economy.
Manganese tailing is the waste formed in manganese production process, and many substances of the inside all can be under field conditions (factors) such as rainwater
Leaching and dissolve out, enter in soil and water body and cause environmental pollution.For a long time, since manganese tailing cannot comprehensively utilize, only
Storage can be stacked, a large amount of land resource is occupied, the serious environmental pollution also resulted in, other hand, due in manganese tailing
It cannot comprehensively utilize, also result in a large amount of wasting of resources.
Therefore, it is necessary to explore the new process that manganese tailings comprehensive is administered and applied.
Summary of the invention
By taking Xiangtan Manganese Mine as an example, manganese tailing main chemical compositions and its mass percentage are as follows: Mn29.11%, oxidation
Calcium 0.78%, magnesia 0.34%, silica 23.45%, iron 4.74%.Manganese contained by manganese tailing is mainly tetravalent manganese,
That is MnO2 has stronger oxidisability in acid condition, for this purpose, can by be added reducing substances will be in manganese tailing
Tetravalent manganese is reduced to bivalent manganese.Based on this, the present invention provides a kind of manganese tailings comprehensive Processing tecchnics, and the technological operation is simple,
Equipment investment is few, and manganese recovery utilization rate is high, is worthy of popularization.
Technical scheme is as follows: a kind of manganese tailings comprehensive Processing tecchnics, the technique comprise the following specific steps that:
Step A: manganese tailing being crushed as 80-100 mesh, is mixed with excessive dilute hydrochloric acid solution, makes hydrochloric acid and MnO2, oxidation
Calcium, magnesia and iron reaction, generate manganese chloride, calcium chloride, magnesium chloride and frerrous chloride；Filtering reacting liquid removes insoluble two
Silica obtains the filtrate of main chloride containing ferrous iron, calcium chloride, magnesium chloride and manganese chloride；
Step B: excessive potassium sulfide being added into the resulting filtrate of step A, reaction under stirring, generation manganese sulfide precipitating,
Ferrous sulfide precipitating and vulcanization calcium precipitate, filtering reacting liquid obtain the filter cake of Containing Sulfur manganese, ferrous sulfide and calcium sulfide, filtrate
In contain chloride ion, magnesium ion, potassium ion and sulphion；
Step C: the filter cake of Containing Sulfur manganese, ferrous sulfide and calcium sulfide obtained by step B is reacted with sulfuric acid solution, is contained
Manganese sulfate, ferrous sulfate and calcium sulfate reaction solution and discharge hydrogen sulfide gas；Hydrogen sulfide gas is absorbed with potassium hydroxide solution,
Obtain potassium sulfide；Potassium sulfide return step B recycling；
The technique of the present invention that manganese sulfate, ferrous sulfate and calcium sulfate are prepared with manganese tailing, takes full advantage of manganese tailing
Manganese, iron and the calcium contained, step is simple, and equipment investment is few, and manganese sulfate, ferrous sulfate and calcium sulfate yield are higher, are one
A technique being worthy of popularization.
Specific embodiment
Embodiment: a kind of manganese tailings comprehensive Processing tecchnics, the technique comprise the following specific steps that:
Step A: manganese tailing being crushed as 80-100 mesh, is mixed with excessive dilute hydrochloric acid solution, makes hydrochloric acid and MnO2, oxidation
Calcium, magnesia and iron reaction, generate manganese chloride, calcium chloride, magnesium chloride and frerrous chloride；Filtering reacting liquid removes insoluble two
Silica obtains the filtrate of main chloride containing ferrous iron, calcium chloride, magnesium chloride and manganese chloride；
Step B: excessive potassium sulfide being added into the resulting filtrate of step A, reaction under stirring, generation manganese sulfide precipitating,
Ferrous sulfide precipitating and vulcanization calcium precipitate, filtering reacting liquid obtain the filter cake of Containing Sulfur manganese, ferrous sulfide and calcium sulfide, filtrate
In contain chloride ion, magnesium ion, potassium ion and sulphion；
Step C: the filter cake of Containing Sulfur manganese, ferrous sulfide and calcium sulfide obtained by step B is reacted with hydrochloric acid solution, is contained
Manganese chloride, frerrous chloride and calcium chloride reaction solution and discharge hydrogen sulfide gas；Hydrogen sulfide gas is absorbed with potassium hydroxide solution,
Obtain potassium sulfide；Potassium sulfide return step B recycling；
Step D: the reaction solution of chloride containing manganese, frerrous chloride and calcium chloride obtained by step C is sent into alkali pressure distiller and is subtracted
Pressure distillation is saturated solution, cooling at different temperature to tie according to the difference of manganese chloride, frerrous chloride and calcium chloride solubility
Crystalline substance, is precipitated manganese chloride crystal, frerrous chloride crystal and calcium chloride crystals respectively, and filtering obtains respectively obtaining chlorination manganese product, chlorine
Change ferrous product and calcium chloride product.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
Specific implementation of the invention is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs, exist
Under the premise of not departing from present inventive concept, architectural form cans be flexible and changeable, can be with derivative series product.It only makes several
Simple deduction or replace all shall be regarded as belonging to present invention scope of patent protection determined by the appended claims.
Claims (1)
1. a kind of manganese tailings comprehensive Processing tecchnics, which is characterized in that the technique comprises the following specific steps that:
Step A: manganese tailing is crushed as 80-100 mesh, is mixed with excessive dilute hydrochloric acid solution, makes hydrochloric acid and MnO2, calcium oxide, oxygen
Change magnesium and iron reaction, generates manganese chloride, calcium chloride, magnesium chloride and frerrous chloride；Filtering reacting liquid removes insoluble titanium dioxide
Silicon obtains the filtrate of main chloride containing ferrous iron, calcium chloride, magnesium chloride and manganese chloride；
Step B: excessive potassium sulfide being added into the resulting filtrate of step A, stirs lower reaction, generates manganese sulfide precipitating, vulcanization
Ferrous precipitation and vulcanization calcium precipitate, filtering reacting liquid obtain the filter cake of Containing Sulfur manganese, ferrous sulfide and calcium sulfide, contain in filtrate
There are chloride ion, magnesium ion, potassium ion and sulphion；
Step C: the filter cake of Containing Sulfur manganese, ferrous sulfide and calcium sulfide obtained by step B is reacted with sulfuric acid solution, obtains sulfur acid
Manganese, ferrous sulfate and calcium sulfate reaction solution and discharge hydrogen sulfide gas；Hydrogen sulfide gas is absorbed with potassium hydroxide solution, is obtained
Potassium sulfide；Potassium sulfide return step B recycling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711152042.7A CN109809492A (en) | 2017-11-19 | 2017-11-19 | A kind of manganese tailings comprehensive Processing tecchnics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711152042.7A CN109809492A (en) | 2017-11-19 | 2017-11-19 | A kind of manganese tailings comprehensive Processing tecchnics |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109809492A true CN109809492A (en) | 2019-05-28 |
Family
ID=66599094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711152042.7A Pending CN109809492A (en) | 2017-11-19 | 2017-11-19 | A kind of manganese tailings comprehensive Processing tecchnics |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109809492A (en) |
-
2017
- 2017-11-19 CN CN201711152042.7A patent/CN109809492A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102191388B (en) | Process for extracting vanadium from stone coal through two-section curing with concentrated acid | |
| CN104003443B (en) | A kind of method adding JZPD capsule ammonium meta-vanadate | |
| CN101760632B (en) | Method for recovering zinc from zinc sulfate solution | |
| CN104561561A (en) | Innocent treatment method for barium-containing waste residues | |
| CN109368688A (en) | A kind of production technology of high pure zinc oxide indirect method | |
| CN104445425B (en) | A kind of preparation method of high purity manganese sulfate | |
| CN107324395A (en) | A kind of method for producing manganous salt | |
| CN101328540B (en) | Method for recovering sodium molybdate solution from molybdenum-containing leaching residues | |
| CN102115162A (en) | Method for preparing arsenic trioxide by using arsenic sulfide waste slags | |
| CN102002597B (en) | Method for comprehensively recovering valuable metals from low-grade tellurium slag | |
| CN109399723A (en) | A method of electrolytic manganese dioxide is produced using manganese tailing and Titanium white waste sulfuric acid | |
| CN101759315B (en) | Method for recycling waste diluted sulfuric acid from acid washing solution of steel | |
| CN110607452B (en) | Comprehensive utilization method of iron ore sintering smoke dust leaching solution | |
| CN104609472A (en) | Method for producing vanadium pentoxide from titanium tetrachloride refinement vanadium-removal slurry | |
| CN102115197A (en) | Method for preparing manganese chloride and ferrous chloride by using manganese tailings | |
| CN109809492A (en) | A kind of manganese tailings comprehensive Processing tecchnics | |
| CN109748323A (en) | A method of it repeats to prepare sulfate using potassium sulfide | |
| CN106636632B (en) | A kind of method that normal pressure decomposes wolframite or Scheelite-Wolframite Mixed Mine in alkaline system | |
| CN102115166B (en) | Method for preparing arsenic trioxide from arsenic sulfide waste | |
| CN101723431A (en) | Method for recovering magnesium from magnesium sulfate solution | |
| CN102115207B (en) | Method for producing ferrous carbonate and ammonium sulfate by using waste acid obtained during production of titanium pigment by adopting sulfuric acid process | |
| CN114455561A (en) | Comprehensive utilization process of hot galvanizing pickling wastewater and method for preparing battery-grade iron phosphate | |
| CN108862369B (en) | Method for producing nano zinc oxide by using leached residues of electrolytic zinc acid method | |
| CN106319229A (en) | Method for recovering silver from silver particles in silver production waste liquid | |
| CN101760635A (en) | Method for recovering nickel from nickel sulfate solution |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190528 |