CN106396636A - Electrolytic manganese residue lightweight sintered brick and preparation method thereof - Google Patents
Electrolytic manganese residue lightweight sintered brick and preparation method thereof Download PDFInfo
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- CN106396636A CN106396636A CN201610819270.4A CN201610819270A CN106396636A CN 106396636 A CN106396636 A CN 106396636A CN 201610819270 A CN201610819270 A CN 201610819270A CN 106396636 A CN106396636 A CN 106396636A
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- electrolytic manganese
- manganese residues
- clay
- residues
- coal dust
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- 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
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/132—Waste materials; Refuse; Residues
- C04B33/138—Waste materials; Refuse; Residues from metallurgical processes, e.g. slag, furnace dust, galvanic waste
-
- 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
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/04—Clay; Kaolin
-
- 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
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/74—Physical characteristics
- C04B2235/77—Density
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
-
- 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
- Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Dispersion Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses an electrolytic manganese residue lightweight sintered brick which comprises the following raw materials in percentage by mass: 80-90% of electrolytic manganese residues, 5-15% of clay and 5% of pulverized coal, totaling 100%. The preparation method comprises the following steps: mixing the electrolytic manganese residues, clay and pulverized coal, performing compression molding, sintering at the temperature of 1040 DEG C, maintaining the temperature for 3 hours, and performing natural furnace cooling, thereby obtaining the product. The manganese residue lightweight sintered brick has the breaking strength of 4.38-5.7MPa, the compressive strength of 22-27MPa and the unit weight of 1450-1580kg/m<3>, and the strength property of the sintered brick reaches a higher level of national standards MU20 and MU25 of the sintered brick. According to the electrolytic manganese residue lightweight sintered brick disclosed by the invention, the clay and the pulverized coal are added into the electrolytic manganese residues, so that industrial solid wastes, namely the electrolytic manganese residues, are effectively utilized, the environmental pollution is reduced, and a novel though is provided for resource recycling of the electrolytic manganese residues.
Description
Technical field
The present invention relates to a kind of electrolytic manganese residues Lightweight clinker brick and preparation method thereof, belong to industrial residue reutilization technology neck
Domain.
Background technology
China is electrolytic manganese producing country maximum in the world at present, and electrolytic manganese yield accounts for the 98% of Gross World Product.I
The manganese resource of state is mainly the manganese spar based on manganese carbonate ore, to produce manganese metal using electrolysis sulfuric acid preparation of manganese, to obtain
Also substantial amounts of acid slag manganese slag is created while obtaining manganese metal.Due to the indiscriminate mining and serious waste to manganese resource in recent years, make
Become the increasingly reduction of manganese ore taste, now often produce the manganese slag that 1 ton of manganese metal will produce 8～9 tons.Due to a lack of effectively sharp again
With technology, mainly to stack or to be processed in the form of filling, the industrial manganese slag stacked year by year is to ring for these substantial amounts of manganese slags
Border causes severe contamination, be mainly shown as contain in manganese slag a large amount of ammonia nitrogens, sulfate, heavy metal ion for example cadmium, lead, arsenic,
Pollution and destruction that copper, zinc and manganese etc. cause to air, earth's surface/underground water source, soil texture, ecological environment etc. near slag field,
Become the principal element of restriction China electrolytic manganese industry sustainable development.If added through certain process and other batch mixings
Plus, it is possible to achieve effective recovery of manganese slag is utilized with comprehensive resource, thus reducing the pollution to environment, produces good economy
Benefit and environmental benefit.
Currently, people have carried out extensive research to the recovery of manganese slag with recycling, such as extract metal from manganese slag
Manganese, as cement retarder, preparation Ceramic Tiles, make honeycomb briquet fuel, produce manganese fertilizer, produce glaze or microcrystal glass material,
As building materials or roadbed material etc..These methods are that the comprehensive utilization of manganese slag opens new approaches, but still are difficult to extensive
Using it is therefore necessary to find new manganese slag for comprehensive utilization ways.So far, not yet find with electrolytic manganese residues as primary raw material
Prepare the research report of fired brick.
The main chemical of electrolytic manganese residues is determined as follows：(each component content is mass percent %)
Change by the electrolytic manganese residues of the Tong Ren District of Guizhou Province city Jin Ruimeng industry company in " manganese triangle " area famous to China
Learn composition analysis to understand, electrolytic manganese residues belong to the very low acid slag of activity.
According to the regulation of GB GB/T203-1994, to calculate manganese slag coefficient of discharge, its result with reference to slag's chemical module
For：
(1) manganese slag coefficient of discharge K=(CaO+MgO+Al2O3)/(SiO2+MnO+TiO2)=16.18/29.48=0.55<
1.2 (unqualified)
(2) manganese slag alkalescence coefficient M0=(CaO+MgO)/(SiO2+Al2O3)=9.91/33.22=0.30<1 (for acidity
Slag)
According to the mineral composition analysis to electrolytic manganese residues, electrolytic manganese residues mainly contain calcium sulphate dihydrate and quartz, its chemical group
Become and be then mainly Cao, MgO, Al2O3、SiO2Deng, hence with existing trade waste electrolytic manganese residues be primary raw material, interpolation
Other raw materials are come to prepare fired brick be feasible.
Content of the invention
In view of this, the present invention is directed to the problem of electrolytic manganese residues resource, there is provided a kind of electrolytic manganese residues Lightweight clinker brick,
And the present invention also provides a kind of preparation method of electrolytic manganese residues Lightweight clinker brick.
In order to solve above-mentioned technical problem, the invention discloses a kind of electrolytic manganese residues Lightweight clinker brick, by mass percentage
It is made up of following raw material：Electrolytic manganese residues 80～90%, clay 5～15%, coal dust 5%, above constituent mass percentage sum is
100%.
The preparation method of above-mentioned electrolytic manganese residues Lightweight clinker brick, specifically implements according to following steps：
Step 1：Free water in dry 24～26h removal raw material at 80～90 DEG C after manganese slag, clay, coal are smashed to pieces is extremely
Constant weight, is then sized to 120 mesh and respectively obtains manganese ground-slag, clay powder, coal dust after ball milling；
Step 2：Weigh electrolytic manganese residues 80～90%, clay 5～15%, coal dust 5% by mass percentage respectively, above group
Mass percent sum is divided to be 100%；
Step 3：In 20～25MPa pressure after the electrolytic manganese residues weighing in step 2, clay and coal dust ball milling are sufficiently mixed
Under compressing, be then passed through sinter, obtain electrolytic manganese residues Lightweight clinker brick.
Wherein, sintering is to be warming up to 100 DEG C of insulation 30min at 20 DEG C, then heat to 500 DEG C of insulation 30min, rise
Temperature, to 800 DEG C of insulation 60min, is finally warming up to along with the furnace cooling after 1040 DEG C of insulation 180min.
Compared with prior art, the present invention can obtain including following technique effect：
(1) the raw materials used cheap, species of the present invention is few, and raw materials used only three kinds of the present invention is respectively provided with cheap, easy buying
Advantage.
(2) primary raw material of the present invention is electrolytic manganese residues, and its early stage treatment process is few and simple.Electrolytic manganese residues only need through
It is meshed and baked, can use after the simple process of ball milling, and the utilization of electrolytic manganese residues is big, its mass fraction in formula
Up to 80～90%.
(3) electrolytic manganese residues fired brick of the present invention, by adding clay and coal dust so that the sintering of preparation in electrolytic manganese residues
The intensity of brick reaches the fired brick national standard of MU20, MU25, can apply have certain resistance to compression, rupture strength requirement completely
Building material field.
(4) turn waste into wealth, resource reutilization.Electrolytic manganese residues are industrial residue, and discharge capacity is big, seriously polluted, makes to environment
Become high risks, the present invention as primary raw material and is properly added certain clay and coal dust to prepare manganese slag light-weight sintering
Brick, the resource of achievable trade waste recycles, and is that the recycling problem of electrolytic manganese residues provides a kind of new think of
Road.
Certainly, the arbitrary product implementing the present invention it is not absolutely required to reach all the above technique effect simultaneously.
Brief description
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the present invention, this
Bright schematic description and description is used for explaining the present invention, does not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the thing phase composition XRD qualification figure of raw materials used electrolytic manganese residues.
Specific embodiment
The present invention is described in further detail by following embodiment, coordinates embodiment to describe the embodiment party of the present invention in detail
Formula, thereby to the present invention, how application technology means solve technical problem and to reach realizing process and fully managing of technology effect
Solution is simultaneously implemented according to this.
Observe Fig. 1 and can be seen that electrolytic manganese residues mainly by gypsum (CaSO4·2H2) and quartzy (SiO O2) and micro
Muscovite (H2KAl3(SiO4)3) and the mineralogical composition such as kaolin composition.May also be aware of the height of crystallization degree by analyzing curve
Low and quartzous how much relevant, observation understands that quartz content is many in manganese slag, and the content of gypsum is taken second place, containing micro white clouds
Mother, and crystalline formation is substantially, therefore manganese slag is relatively to be suitable for doing brick-making raw material.
Sample appearance after the present invention is sintered is in coffee-like yellowish, rough surface it is seen that significantly tiny hole,
Tarnish, quality is hard.Due to the organic matter in green compact sample, carbonate, the crystallization water heat up during produced gas
Body escape, in addition after coal high temperature helping burning and carbonization, formed more holes, simultaneously manganese slag melt at high temperature, therefore with
The generation of liquid phase in sample, has filled up hole, forms network structure, serves solidification effect to the product of burning till, so that its quality
Hard, intensity is larger, meets the national standard of fired brick it is adaptable to building material field.
Embodiment 1：
The method that this enforcement 1 prepares Lightweight clinker brick using electrolytic manganese residues, specifically implements according to following steps：
Step 1：24～26h is dried after respectively manganese slag, clay, coal being smashed to pieces and removes the freedom in raw material at 80～90 DEG C
Water is crossed 120 mesh sieves and is respectively obtained manganese ground-slag, clay powder, coal dust to constant weight, then ball milling；
Step 2：Weigh electrolytic manganese ground-slag 2.52kg (90%), clay powder 0.14kg (5%), coal by mass percentage respectively
Powder 0.14kg (5%), above constituent mass percentage sum is 100%, and gross mass sum is 2.8kg；
Step 3：It is pressed under 20～25MPa pressure after the electrolytic manganese residues weighing in step 2, clay and coal dust are mixed
Profile is that right angle hexahedron is standby burns, its long 240mm, wide 115mm, high 53mm；
Step 4：Will be naturally cold with stove after the green briquette suppressed in step 3 sintered heat insulating 3 hours at a temperature of 1040 DEG C
But obtain electrolytic manganese residues Lightweight clinker brick.
Wherein, heating rate during sintering is 5 DEG C/min, and using heat stepwise and by the way of being incubated, rises from 20 DEG C
Temperature to 100 DEG C and is incubated 30min, then heats to 500 DEG C and be incubated 30min, be warming up to 800 DEG C again and be incubated 60min, then
Be warming up to 1040 DEG C and heat preservation sintering 180min, last along with the furnace cooling and obtain manganese slag Lightweight clinker brick.
After tested, the rupture strength of this manganese slag fired brick is 4.38MPa, and compression strength is 21.8MPa, and bulk density is
1450kg/m3, strength character reached fired brick national standard MU20 grade, can apply as Lightweight clinker brick building completely
Build Material Field.
Embodiment 2：
The method that the present embodiment 2 prepares Lightweight clinker brick using electrolytic manganese residues, specifically implements according to following steps：
Step 1：24～26h is dried after respectively manganese slag, clay, coal being smashed to pieces and removes the freedom in raw material at 80～90 DEG C
Water is crossed 120 mesh sieves and is respectively obtained manganese ground-slag, clay powder, coal dust to constant weight, then ball milling；
Step 2：Weigh respectively by mass percentage electrolytic manganese ground-slag 2.38kg (85%), clay powder 0.28kg (10%),
Coal dust 0.14kg (5%), above constituent mass percentage sum is 100%, and gross mass sum is 2.8kg；
Step 3：It is pressed under 20～25MPa pressure after the electrolytic manganese residues weighing in step 2, clay and coal dust are mixed
Profile is that lineal hexahedral is standby burns, its long 240mm, wide 115mm, high 53mm；
Step 4：Will be naturally cold with stove after the green briquette suppressed in step 3 sintered heat insulating 3 hours at a temperature of 1040 DEG C
But obtain electrolytic manganese residues Lightweight clinker brick.
Wherein, heating rate during sintering is 5 DEG C/min, and using heat stepwise and by the way of being incubated, rises from 20 DEG C
Temperature to 100 DEG C and is incubated 30min, then heats to 500 DEG C and be incubated 30min, be warming up to 800 DEG C again and be incubated 60min, then
Be warming up to 1040 DEG C and heat preservation sintering 180min, last along with the furnace cooling and obtain manganese slag Lightweight clinker brick.
After tested, the rupture strength of this manganese slag fired brick is 5.68MPa, and compression strength is 26.8MPa, and bulk density is
1580kg/m3, strength character reached fired brick national standard MU25 grade, can apply as Lightweight clinker brick building completely
Build Material Field.
Embodiment 3：
The method that the present embodiment 3 prepares Lightweight clinker brick using electrolytic manganese residues, specifically implements according to following steps：
Step 1：24～26h is dried after respectively manganese slag, clay, coal being smashed to pieces and removes the freedom in raw material at 80～90 DEG C
Water is crossed 120 mesh sieves and is respectively obtained manganese ground-slag, clay powder, coal dust to constant weight, then ball milling；
Step 2：Weigh respectively by mass percentage electrolytic manganese ground-slag 2.24kg (80%), clay powder 0.42kg (15%),
Coal dust 0.14kg (5%), above constituent mass percentage sum is 100%, and gross mass sum is 2.8kg；
Step 3：It is pressed under 20～25MPa pressure after the electrolytic manganese residues weighing in step 2, clay and coal dust are mixed
Profile is that lineal hexahedral is standby burns, its long 240mm, wide 115mm, high 53mm；
Step 4：Will be naturally cold with stove after the green briquette suppressed in step 3 sintered heat insulating 3 hours at a temperature of 1040 DEG C
But obtain electrolytic manganese residues Lightweight clinker brick.
Wherein, heating rate during sintering is 5 DEG C/min, and using heat stepwise and by the way of being incubated, rises from 20 DEG C
Temperature to 100 DEG C and is incubated 30min, then heats to 500 DEG C and be incubated 30min, be warming up to 800 DEG C again and be incubated 60min, then
Be warming up to 1040 DEG C and heat preservation sintering 180min, last along with the furnace cooling and obtain manganese slag Lightweight clinker brick.
After tested, the rupture strength of this manganese slag fired brick is 4.81MPa, and compression strength is 24.1MPa, and bulk density is
1530kg/m3, strength character reached fired brick national standard MU25 grade, can apply as Lightweight clinker brick building completely
Build Material Field.
The present embodiment is carried out under premised on technical solution of the present invention, contains detailed embodiment and tool
The operating process of body.But as previously mentioned it should be understood that invention is not limited to form disclosed herein, it is not to be taken as to it
The exclusion of his embodiment, and can be used for various other combinations, modification and environment, and can be in invention contemplated scope described herein
Interior, it is modified by the technology or knowledge of above-mentioned teaching or association area.But the technology contents that this embodiment is illustrated are only
For illustrative rather than determinate, protection scope of the present invention, the change that those skilled in the art are carried out should not limited to according to this
With change without departing from the spirit and scope invented, then all should be in the protection domain of invention claims.
Claims (7)
1. a kind of electrolytic manganese residues Lightweight clinker brick is it is characterised in that be made up of following raw material by mass percentage：Electrolytic manganese residues 80
～90%, clay 5～15%, coal dust 5%, above constituent mass percentage sum is 100%.
2. electrolytic manganese residues Lightweight clinker brick as claimed in claim 1 is it is characterised in that by mass percentage by following raw material group
Become：Electrolytic manganese residues 90%, clay 5%, coal dust 5%.
3. electrolytic manganese residues Lightweight clinker brick as claimed in claim 1 is it is characterised in that by mass percentage by following raw material group
Become：Electrolytic manganese residues 85%, clay 10%, coal dust 5%.
4. electrolytic manganese residues Lightweight clinker brick as claimed in claim 1 is it is characterised in that by mass percentage by following raw material group
Become：Electrolytic manganese residues 80%, clay 15%, coal dust 5%.
5. the preparation method of described electrolytic manganese residues Lightweight clinker brick as arbitrary in Claims 1 to 4 is it is characterised in that specifically press
Implement according to following steps：
Step 1, weighs electrolytic manganese residues, clay and coal dust according to the arbitrary described proportioning of Claims 1 to 4；
Step 2, compressing under 20～25MPa pressure after the electrolytic manganese residues weighing in step 1, clay and coal dust are mixed,
It is then passed through sintering, obtain electrolytic manganese residues Lightweight clinker brick.
6. the preparation method of electrolytic manganese residues Lightweight clinker brick as claimed in claim 5 is it is characterised in that distinguished before weighing
Free water in dry 24～26h removal raw material at 80～90 DEG C after manganese slag, clay, coal are smashed to pieces is to constant weight, then ball milling
After be sized to 120 mesh and respectively obtain manganese ground-slag, clay powder, coal dust.
7. the preparation method of electrolytic manganese residues Lightweight clinker brick as claimed in claim 5 is it is characterised in that sintering is with 20 DEG C
It is warming up to 100 DEG C of insulation 30min, then heats to 500 DEG C of insulation 30min, be warming up to 800 DEG C of insulation 60min again, finally heat up
The along with the furnace cooling to 1040 DEG C of insulation 180min.
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| CN201610819270.4A CN106396636A (en) | 2016-09-14 | 2016-09-14 | Electrolytic manganese residue lightweight sintered brick and preparation method thereof |
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| CN201610819270.4A CN106396636A (en) | 2016-09-14 | 2016-09-14 | Electrolytic manganese residue lightweight sintered brick and preparation method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106478066A (en) * | 2016-09-14 | 2017-03-08 | 铜仁学院 | A kind of building clinker and preparation method thereof |
| CN110550937A (en) * | 2019-09-18 | 2019-12-10 | 上海宝田新型建材有限公司 | Method for producing ceramic blank by using blast furnace slag powder |
| CN114315317A (en) * | 2021-12-27 | 2022-04-12 | 宜兴市隆昌耐火材料有限公司 | High-strength alkali-resistant composite brick based on waste recycling and preparation method thereof |
| CN115028434A (en) * | 2022-06-07 | 2022-09-09 | 中化地质矿山总局地质研究院 | Electrolytic manganese slag sintered brick and preparation method thereof |
| CN115093200A (en) * | 2022-06-07 | 2022-09-23 | 中化地质矿山总局地质研究院 | Reinforced electrolytic manganese slag sintered brick and preparation method thereof |
| CN116835963A (en) * | 2023-07-05 | 2023-10-03 | 湖南省环境保护科学研究院 | Preparation method of electrolytic manganese slag brick |
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| CN101767978A (en) * | 2010-01-21 | 2010-07-07 | 中南大学 | Manganese slag-solid waste mixed sintering brick making method |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106478066A (en) * | 2016-09-14 | 2017-03-08 | 铜仁学院 | A kind of building clinker and preparation method thereof |
| CN110550937A (en) * | 2019-09-18 | 2019-12-10 | 上海宝田新型建材有限公司 | Method for producing ceramic blank by using blast furnace slag powder |
| CN114315317A (en) * | 2021-12-27 | 2022-04-12 | 宜兴市隆昌耐火材料有限公司 | High-strength alkali-resistant composite brick based on waste recycling and preparation method thereof |
| CN114315317B (en) * | 2021-12-27 | 2022-11-25 | 宜兴市隆昌耐火材料有限公司 | High-strength alkali-resistant composite brick based on waste recycling and preparation method thereof |
| CN115028434A (en) * | 2022-06-07 | 2022-09-09 | 中化地质矿山总局地质研究院 | Electrolytic manganese slag sintered brick and preparation method thereof |
| CN115093200A (en) * | 2022-06-07 | 2022-09-23 | 中化地质矿山总局地质研究院 | Reinforced electrolytic manganese slag sintered brick and preparation method thereof |
| CN115093200B (en) * | 2022-06-07 | 2023-09-29 | 中化地质矿山总局地质研究院 | Reinforced electrolytic manganese slag sintered brick and preparation method thereof |
| CN116835963A (en) * | 2023-07-05 | 2023-10-03 | 湖南省环境保护科学研究院 | Preparation method of electrolytic manganese slag brick |
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