CN108557776A - A method of producing sulfuric acid using electrolytic manganese waste residue - Google Patents
A method of producing sulfuric acid using electrolytic manganese waste residue Download PDFInfo
- Publication number
- CN108557776A CN108557776A CN201711281909.9A CN201711281909A CN108557776A CN 108557776 A CN108557776 A CN 108557776A CN 201711281909 A CN201711281909 A CN 201711281909A CN 108557776 A CN108557776 A CN 108557776A
- Authority
- CN
- China
- Prior art keywords
- electrolytic manganese
- waste residue
- sulfuric acid
- manganese waste
- raw material
- 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.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/48—Sulfur dioxide; Sulfurous acid
- C01B17/50—Preparation of sulfur dioxide
- C01B17/501—Preparation of sulfur dioxide by reduction of sulfur compounds
- C01B17/506—Preparation of sulfur dioxide by reduction of sulfur compounds of calcium sulfates
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/69—Sulfur trioxide; Sulfuric acid
- C01B17/74—Preparation
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
- C04B7/24—Cements from oil shales, residues or waste other than slag
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Processing Of Solid Wastes (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
A method of sulfuric acid being produced using electrolytic manganese waste residue, is related to a kind of electrolytic manganese waste residue method of comprehensive utilization.It is characterized in that the step of its production process, includes：（1) raw material are configured with electrolytic manganese waste residue, coke；（2）After the raw material of preparation are preheated, calcined；（3）The SO of the generation of calcining2Gas obtains >=98% sulfuric acid finished product by purification, conversion, absorption process.The method of the present invention generates SO using electrolytic manganese waste residue as primary raw material by kiln tail after high-temperature calcination2Gas manufactures industrial chemicals, and the slag after calcining can be used for cement plant and carry out manufacture of cement, and industrial chemicals is for producing electrolytic manganese metal or other chemical fields.It is effectively utilized electrolytic manganese waste residue and prepares industrial chemicals, can largely consume electrolytic manganese waste residue slag.Achieve the purpose that turn waste into wealth, recycle.
Description
Technical field
A method of sulfuric acid being produced using electrolytic manganese waste residue, is related to a kind of electrolytic manganese waste residue method of comprehensive utilization.
Background technology
The solid waste that electrolytic manganese waste residue discharges when being electrolysis production manganese metal often produces 1t manganese metals and about generates
3.5t manganese slags.Manganese slag utilization rate is very low at present, and the manganese slag muck product of large area not only causes prodigious pressure to environment, even more provides
The extreme waste in source.
The raw material of domestic production sulfuric acid is mainly sulphur and troilite, including flue gas during smelting, other sulphur-containing substances etc. at present.
Sulfuric acid is known as " mother of industry ".Sulfuric acid is important one of raw material of industry, is most important product in chemical industry, answers extensively
Smelting, petroleum refining and petrochemical industry, textile printing and dyeing for manufacturing inorganic chemical industry, non-ferrous metal, rubber industry, paint industry
And defence and military, pesticide medicine, process hides, coking, the industrial departments such as food are additionally used for pickling iron and steel, are known as " industry
Mother ".Currently, generally using 3 kinds of acid production with sulphur, pyrite-based sulfuric acid production and ardealite (gypsum) acid-making process both at home and abroad.With work
The development of industry, in short supply, the requirement of environmental protection and the strategy of sustainable development of ferro-sulphur ore, the method for finding new Sulphuric acid
As vital task.
Invention content
The purpose of the present invention provides that a kind of effectively to solve electrolytic manganese useless aiming at insufficient existing for above-mentioned prior art
The stockpiling of slag has an impact surrounding enviroment, increases relieving haperacidity raw material, and what is turned waste into wealth produces the side of sulfuric acid using electrolytic manganese waste residue
Method.
The purpose of the present invention is what is be achieved through the following technical solutions.
A method of utilize electrolytic manganese waste residue to produce sulfuric acid, it is characterised in that the step of its production process includes：
(1) raw material are configured with electrolytic manganese waste residue, coke；
(2) it after preheating the raw material of preparation, is calcined；
(3) SO for the generation calcined2Gas obtains >=98% sulfuric acid finished product by purification, conversion, absorption process.
A kind of method producing sulfuric acid using electrolytic manganese waste residue of the present invention, it is characterised in that the electrolytic manganese of its step (1)
Waste residue, coke allocation ratio are 97:3.
A kind of method producing sulfuric acid using electrolytic manganese waste residue of the present invention, it is characterised in that the preparation of its step (2)
Raw material preheating temperature is 600-700 DEG C, is calcined at 1100-1300 DEG C using rotary kiln.
A kind of method producing sulfuric acid using electrolytic manganese waste residue of the present invention, it is characterised in that it is calcined slag and is given birth to for cement
Production.
The method of the present invention generates SO using electrolytic manganese waste residue as primary raw material by kiln tail after high-temperature calcination2Gas manufactures
Industrial chemicals, the slag after calcining can be used for cement plant carry out manufacture of cement, industrial chemicals for produce electrolytic manganese metal or other
Chemical field.It is effectively utilized electrolytic manganese waste residue and prepares industrial chemicals, can largely consume electrolytic manganese waste residue slag.Reach change give up into
Purpose that is precious, recycling.
Description of the drawings
Fig. 1 is the process flow chart of the method for the present invention.
Specific implementation mode
A method of sulfuric acid being produced using electrolytic manganese waste residue, the step of production process includes：(1) useless with electrolytic manganese
Slag, coke configure raw material；(2) it after preheating the raw material of preparation, is calcined；(3) SO for the generation calcined2Gas is by net
Change, convert, absorption process obtains >=98% sulfuric acid finished product.
Specifically the processing step of example includes：
The pretreatment of electrolytic manganese waste residue：Former manganese slag (water content 25% or so) uses downflow type rotary dryer by drying the manganese slag
To moisture 2% hereinafter, waiting for dispensing in the feed proportioning station that the manganese slag after drying enters extracting sulfuric acid.Batching metering uses belt
Weighing balance measures；
Feed proportioning：Proportioning station carries out various material cooperations using 8 meters of round libraries, needs to match raw material to be respectively coke, manganese
Slag.The raw material that proportioning is completed enters raw material vertical-grinding and carries out grinding, and grinding to 150-200 mesh fineness is homogenized into raw material homogenizing silo
It is prepared into qualified raw material to be burnt afterwards.
The requirement of raw material proportioning technology：It is prepared for main waste sulfuric acid raw material with manganese slag, the CaSO4 thermostabilizations in raw material
Property is strong, could be decomposed when being warming up to 1470 DEG C, and speed is slow.When adding coke in raw material as reducing agent, can be greatly reduced
Decomposition temperature improves reaction speed.Proportion scheme is provided according to experimental conditions：
Material chemical component：
| Title | Moisture | LOSS | SiO2 | Al2O3 | Fe2O3 | CaO | MgO | SO3 | It is other |
| Electrolytic manganese waste residue | 10.5 | 14.53 | 29.04 | 5.38 | 2.88 | 13.40 | 5.33 | 28.23 | 1.21 |
| Coke | 0.5 | 80.00 | 8.78 | 5.70 | 1.86 | 1.70 | 0.72 | 0.66 | 0.58 |
| Ash content of coal | 32.71 | 21.78 | 10.83 | 10.18 | 6.17 | 6.46 | 11.87 |
Raw material proportioning and raw material chemical composition calculate
Manganese dreg chemistry ingredient calculates after calcining
The drying of electrolytic manganese waste residue raw material and grinding：Proportioned raw material carry out grinding using roller type vertical mill, lead in grinding machine
Enter high temperature air≤350 DEG C, is dried in grinding.Raw material moisture is dried to 1% or less.Grinding machine high-temperature gas is carried by fluidized bed furnace
For.
Raw material are calcined：Raw material calcining is used 3 grades of cyclone preheater waste heats, will be given birth to using calcine technology after first preheating, waste heat
Material waste heat enters rotary kiln for 600 DEG C -700 DEG C or so to temperature.It passes sequentially through rotary kiln transition belt and material is warming up to 900-1100
DEG C, into clinkering zone, 1100-1200 DEG C of clinkering zone decomposes raw material completely, decomposes and generates SO2Gas passes through preheater rear end point
Machine is taken away to relieving haperacidity section, and the sulfuric acid product of content >=98% is waited until by purification, conversion, absorption, absorption process.It decomposes remaining
Material enters storage cavern after the cooling of castor formula cooler, is used as active addition of cement.
Manganese slag matches desulfurization situation：
Experiment one：Desulfurization test using flyash at 900 DEG C~980 DEG C
Experiment two：Desulfurization test using coke blacking at 1200 DEG C
Sulfate radical in manganese slag is relatively low 25% or so, but decomposition temperature is also low at 1150 degree or so, the air in calcining
Dosage is few, the SO of generation2Concentration can carry out double-absorption production industrial chemicals completely in 7.0-9.0%.
Claims (4)
1. a kind of method producing sulfuric acid using electrolytic manganese waste residue, it is characterised in that the step of its production process includes：
（1) raw material are configured with electrolytic manganese waste residue, coke；
（2）After the raw material of preparation are preheated, calcined；
（3）The SO of the generation of calcining2Gas obtains >=98% sulfuric acid finished product by purification, conversion, absorption process.
2. a kind of method producing sulfuric acid using electrolytic manganese waste residue according to claim 1, it is characterised in that its step（1）
Electrolytic manganese waste residue, coke allocation ratio be 97:3.
3. a kind of method producing sulfuric acid using electrolytic manganese waste residue according to claim 1, it is characterised in that its step（2）
Preparation raw material preheating temperature be 600-700 DEG C, calcined at 1100-1300 DEG C using rotary kiln.
4. a kind of method producing sulfuric acid using electrolytic manganese waste residue according to claim 1, it is characterised in that it calcines slag
For manufacture of cement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711281909.9A CN108557776A (en) | 2017-12-07 | 2017-12-07 | A method of producing sulfuric acid using electrolytic manganese waste residue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711281909.9A CN108557776A (en) | 2017-12-07 | 2017-12-07 | A method of producing sulfuric acid using electrolytic manganese waste residue |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108557776A true CN108557776A (en) | 2018-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711281909.9A Pending CN108557776A (en) | 2017-12-07 | 2017-12-07 | A method of producing sulfuric acid using electrolytic manganese waste residue |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110240123A (en) * | 2019-06-27 | 2019-09-17 | 山东鲁北企业集团总公司 | A method of utilizing rotary kiln incineration sulfur waste sulphur and sulphur-bearing waste solution Sulphuric acid |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU939064A1 (en) * | 1980-10-04 | 1982-06-30 | Кузнецкий Филиал Восточного Научно-Исследовательского Углехимического Института | Catalyst for cleaning phtalic acid anhydride production gases |
| CN103613079A (en) * | 2013-11-12 | 2014-03-05 | 宁夏天元锰业有限公司 | Method for producing sulfuric acid from electrolytic manganese residues |
| CN106756001A (en) * | 2016-12-29 | 2017-05-31 | 宁夏天元锰业有限公司 | A kind of method of the production electrolytic manganese metal for comprehensively utilizing electrolytic manganese residues |
| CN206244655U (en) * | 2016-09-01 | 2017-06-13 | 衢州峥嵘环保科技有限公司 | A kind of electrolytic manganese residues calcine desulfurizer |
-
2017
- 2017-12-07 CN CN201711281909.9A patent/CN108557776A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU939064A1 (en) * | 1980-10-04 | 1982-06-30 | Кузнецкий Филиал Восточного Научно-Исследовательского Углехимического Института | Catalyst for cleaning phtalic acid anhydride production gases |
| CN103613079A (en) * | 2013-11-12 | 2014-03-05 | 宁夏天元锰业有限公司 | Method for producing sulfuric acid from electrolytic manganese residues |
| CN206244655U (en) * | 2016-09-01 | 2017-06-13 | 衢州峥嵘环保科技有限公司 | A kind of electrolytic manganese residues calcine desulfurizer |
| CN106756001A (en) * | 2016-12-29 | 2017-05-31 | 宁夏天元锰业有限公司 | A kind of method of the production electrolytic manganese metal for comprehensively utilizing electrolytic manganese residues |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110240123A (en) * | 2019-06-27 | 2019-09-17 | 山东鲁北企业集团总公司 | A method of utilizing rotary kiln incineration sulfur waste sulphur and sulphur-bearing waste solution Sulphuric acid |
| CN110240123B (en) * | 2019-06-27 | 2021-06-22 | 山东鲁北企业集团总公司 | Method for preparing sulfuric acid by using rotary kiln incineration waste sulfur and sulfur-containing waste liquid |
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Application publication date: 20180921 |