CN108675657A - A method of preparing silicate-aluminium sulfate compound system clinker using waste residue - Google Patents
A method of preparing silicate-aluminium sulfate compound system clinker using waste residue Download PDFInfo
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- CN108675657A CN108675657A CN201810429083.4A CN201810429083A CN108675657A CN 108675657 A CN108675657 A CN 108675657A CN 201810429083 A CN201810429083 A CN 201810429083A CN 108675657 A CN108675657 A CN 108675657A
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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
- C04B7/00—Hydraulic cements
- C04B7/02—Portland cement
- C04B7/04—Portland cement using raw materials containing gypsum, i.e. processes of the Mueller-Kuehne type
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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
- C04B7/00—Hydraulic cements
- C04B7/32—Aluminous cements
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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
- C04B7/00—Hydraulic cements
- C04B7/36—Manufacture of hydraulic cements in general
- C04B7/43—Heat treatment, e.g. precalcining, burning, melting; Cooling
- C04B7/44—Burning; Melting
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- 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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- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a kind of methods preparing silicate aluminium sulfate compound system clinker using waste residue, after carbide slag, industrial residue phosphogypsum, sulfate slag, sandstone, bauxite grinding homogenizing, under 1280 DEG C~1400 DEG C of temperature condition, calcined for production of Portland aluminium sulfate compound system clinker.Wherein clinker is mainly by the mineral composition of following weight percent：49%~64% C3S and34%~50% C2S、C3A and C4AF mineral.The present invention is the engineering construction under the conditions of rapid rush-repair, low temperature, anticorrosive etc., provides a kind of early strengthening and high strengthening type complex cement clinker of intensity continuous development.Trade waste can be effectively and rationally utilized simultaneously, reduces residue contamination, reduced manufacture of cement cost, improved the economic benefit and social benefit of cement production enterprise.
Description
Technical field
The present invention relates to cement material preparing technical fields, more particularly to a kind of to prepare silicate-sulphur aluminium using waste residue
The method of hydrochlorate compound system clinker is applicable to the engineering construction application of early strengthening and high strengthening type.
Background technology
Cement and cement-base composite material are the maximum artificial materials of dosage in the world.Silicate systems cement from invention with
Come, clinker mineral composition is stablized, and technical equipment is ripe, has realized relatively stable enlargement, integrated production.But it is big at present
It measures the portland cement used and still has some shortcoming and defect, be mainly shown as：Early strength is relatively low, about 20~28MP；It burns
At temperature height, it is 1450 DEG C, leads to energy consumption height；Alite (C in clinker3S) content is high, usually 55% (quality
Score) left and right, sometimes even up to 60%, it is high to raw limestone quality requirements, consume a large amount of fat lime stone resources.Due to
Lime stone is largely used, a large amount of CO is generated2Equal exhaust gas, environmental pollution are on the rise.
Sulphate aluminium cement is the cement type that another is new after portland cement, aluminate cement, aluminium sulfate
System cement has many advantages, such as early strong, high-strength, freeze proof, impervious, corrosion-resistant.Currently, sulphate aluminium cement price is per ton about
1000 yuan, high-grade bauxite is as one of raw material needed for sulphate aluminium cement, about 1500 yuan of price per ton.High-grade aluminum
The use of raw material becomes one of the prime cost of sulphate aluminium cement production, and to a certain extent, the high cost-effectivenes of raw material limits
The production of sulphate aluminium cement and market application.
China will discharge a large amount of various industrial residues and not only take up tract if handled with land-fill method every year,
And alkalization soil, secondary pollution is caused to air and water source.The ingredient and property and some natural minerals of these industrial residues
It is close, if the valuable mineral with Potential performance can be used, caused by not only reducing and having administered waste residue and exhaust gas
Environmental pollution, and make its recycling, high value-added product is synthesized, there is social and economic benefit outstanding.
Portland cement has the characteristics that performance is stable, production cost is low, but early strength develops slowly, aluminium sulfate water
Mud has the characteristics that early strong, high-strength and low alkali, but its production cost is higher.Two series cements all have oneself unique mineral
Composition and performance feature, while having the shortcomings that again inevitable.If its Optimality can be combined by compound, by certain
Processing technology and technical measures, produce with C3S、C2S andBased on mineral clinker, be the present invention it is main
Research topic.And if can be as far as possible using existing natural crystal and industrial tailings etc. as raw material, it will help reduce and burn
At temperature, the variety type and the scope of application of cement are expanded, while reducing calcium carbonate usage amount, reach energy saving and reduces discharge two
The purpose of carbonoxide.
Invention content
Goal of the invention：The purpose of the present invention is to provide a kind of silicate-aluminium sulfate compound system is prepared using waste residue
The method of clinker, this clinker have the characteristics that the early strengthening and high strengthening type of intensity continuous development, the present invention are not only able to reduce
And environmental pollution caused by waste residue is administered, and make its recycling, synthesize high value-added product.
Technical solution：For achieving the above object, the technical solution adopted by the present invention is as follows：
A method of silicate-aluminium sulfate compound system clinker being prepared using waste residue, is included the following steps：
(1) preparation of complex cement raw material：It is by weight percent：50~70% drying carbide slag, 5~10% it is dry
Dry residue phosphogypsum, 3~5% drying sulfate slag, 2~5% sandstone, 20~30% bauxite mixing obtain after grinding
Complex cement raw material；The moisture content of wherein carbide slag, residue phosphogypsum, sulfate slag and bauxite is respectively less than 0.5wt%；
(2) preparation of complex cement clinker：By complex cement raw material made from step (1) in 1280 DEG C~1400 DEG C calcinings
30~40 minutes, material is cooled down after calcining, after crushing and grinding, obtains silicate-aluminium sulfate compound system clinker；
The C that mineral composition wherein in clinker is 49%~64%3S and34%~50% C2S、C3A and C4AF mineral, 1~
4% nature of glass, wherein C2S is 2CaO ﹒ SiO2, C3A is 3CaO ﹒ Al2O3, C4AF is 4CaO ﹒ Al2O3﹒ Fe2O3, C3S is 3CaO ﹒
SiO2,For 3CaO ﹒ 3Al2O3﹒ CaSO4。
Preferably, raw meal proportioning time control basicity factor is 0.92-1.28, aluminium-sulfur ratio 3.18- in step (1)
5.10, alumina silica ratio 0.80-0.90, lime saturation factor 0.35-0.65, silica modulus 0.70-0.90；Each rate value indicates
For：
Basicity factor：
Aluminium-sulfur ratio：
Alumina silica ratio：
Lime saturation factor：
Silica modulus：
Preferably, fineness tails over 10%-16% for 80 μm after each component separate compiling in step (1).
In the specific implementation, the calcining described in step (2) can be in high-temperature calcination stove, rotary kiln, shaft kiln or tunnel oven
Middle progress.
Preferably, material is cooled to 0 DEG C~60 DEG C of temperature higher than room temperature in 20~30 minutes in step (2).
In the specific implementation, the clinker being burnt into step (2) can utilize electric fan or grate-cooler to cool down.
Technical principle：Portland cement is with calcium carbonate, clayey, irony, siliceous raw material etc. for raw material component.For silicic acid
Salt system mineral largely occur in material with C at 1300 DEG C or more3A and C4Liquid phase based on AF etc., C2S contents reach maximum
Value；With the continuous raising of temperature, the presence of liquid phase makes the C formed2S and CaO is gradually melted into liquid phase and reacts, and generates
C3S, to form the various mineralogical compositions of silicate systems.Sulphate aluminium cement mainly using lime stone, bauxite, gypsum as
Raw material, under the conditions of 1350 DEG C or so of low temperature, formed withAnd C2S clinkers as main component also have in mineral a small amount of
C4AF,With the C of silicate systems3S is the same, the main early strength for realizing cement.Comprehensive type of feed, firing temperature and
The factors such as raw material, material fineness, by controlling basicity factor, aluminium-sulfur ratio, alumina silica ratio, lime saturation factor, silica modulus, to control
The formation of clinker mineral is realized in silicate-aluminium sulfate compound system clinker, C3S andMineral 49%~
64%, C2S、C3A and C4Clinker system of the AF mineral 34%~50%.
Advantageous effect：Silicate prepared by the present invention-aluminium sulfate compound system clinker, utilizes C3S andMainly carry
The early strength of confession, C2S master's later strength to be offered, to realize that silicate-aluminium sulfate compound system clinker institute is necessary
Various physical and chemical performances, not only had the characteristics that portland cement later strength sustainable development, but also have sulphate aluminium cement
The characteristics such as fast solidifying, intensity height, micro-expansibility, corrosion stability are that a kind of morning of intensity continuous development is strong, high-strength novel
Complex cement clinker.And the method provided by the invention for preparing silicate-aluminium sulfate compound system clinker using waste residue, profit
The novel concrete clinker is prepared with industrial solid castoff carbide slag, industrial residue phosphogypsum and sulfate slag etc., is energy saving, sharp
Give up, reduce cost and improve cement performance open an effective way, embody the ancestor that " turning waste into wealth " develops a circular economy
Purport.Environmental pollution caused by this method not only reduces and administered waste residue, and make its recycling, synthesize the production of high added value
Product, specific social and economic benefit outstanding.
Description of the drawings
Fig. 1 is the production technological process of the present invention.
Specific implementation mode
The present invention provides a kind of methods preparing silicate-aluminium sulfate compound system clinker using waste residue.First distinguish
Carbide slag, residue phosphogypsum, sulfate slag and bauxite are dried, until carbide slag, residue phosphogypsum, sulfate slag and bauxite
Moisture content is respectively less than 0.5wt%, and the weight percent of specific formula constituent is as follows：50~70% drying carbide slag, 5~10%
Drying sludge ardealite, 3~5% drying sulfate slag, 2~5% sandstone, 20~30% bauxite；Basicity factor is
0.92-1.28, aluminium-sulfur ratio 3.18-5.10, alumina silica ratio 0.80-0.90, lime saturation factor 0.35-0.65, silica modulus
For 0.70-0.90.Fineness is 80 μm and tails over 10%-16% after each component separate compiling, and each component mixing is answered after homogenizing
Cement raw material；Complex cement raw material obtained are calcined 30~40 minutes in 1280 DEG C~1400 DEG C, calcining can be in high temperature
It is carried out in calcining furnace, rotary kiln, shaft kiln or tunnel oven.Material is cooled down after calcining, material need to be cold in 20~30 minutes
But to 0 DEG C~60 DEG C of temperature higher than room temperature, the clinker of firing is cooled down using electric fan or grate-cooler.Grinding or crush after to get
To silicate-aluminium sulfate compound system clinker.The C that mineral composition wherein in clinker is 49%~64%3S and
34%~50% C2S、C3A and C4AF mineral.
The present invention is described in further details with reference to specific embodiment.
Various industrial residues and its chemical analysis used in 1~embodiment of embodiment 3 refer to table 1：
| Material | L.O.I | SiO2 | Al2O3 | TiO2 | Fe2O3 | CaO | MgO | K2O | Na2O | SO3 | Cl ￣ |
| Carbide slag | 26.01 | 3.72 | 1.18 | 0.05 | 0.33 | 67.97 | 0.05 | 0.02 | 0.11 | 0.21 | 0.030 |
| Bauxite | 1.31 | 39.89 | 52.83 | 0.86 | 2.65 | 0.87 | 0.24 | 0.25 | 0.11 | 0.06 | 0.005 |
| Ardealite | 20.78 | 0.26 | 0.08 | 0.00 | 0.06 | 32.83 | 0.00 | 0.00 | 0.01 | 46.00 | 0.002 |
| Sandstone | 2.03 | 80.17 | 8.98 | 0.56 | 4.53 | 0.63 | 0.30 | 1.75 | 0.09 | 0.06 | 0.003 |
| Sulfate slag | 7.23 | 31.47 | 6.88 | 1.08 | 31.56 | 9.98 | 5.96 | 0.58 | 0.83 | 3.14 | 0.006 |
Embodiment 1
Above-mentioned three kinds of carbide slags, residue phosphogypsum, sulfate slag are dried at 105 DEG C, until carbide slag, residue phosphogypsum,
The moisture content of sulfate slag is respectively less than 0.5wt%, and the weight percent of specific formula constituent is as follows：70.0% carbide slag,
20.0% bauxite, 5.0% drying sludge ardealite, 2.0% sandstone, 3.0% drying sulfate slag.Wherein basicity system
Number is 1.28, aluminium-sulfur ratio 3.18, alumina silica ratio 0.80, lime saturation factor 0.65, silica modulus 0.70.Each component is distinguished
Fineness is 80 μm and tails over 14% or so after grinding, and by each component mixing, complex cement raw material are obtained after homogenizing；It will be obtained compound
Cement slurry is calcined 35 minutes in 1340 ± 40 DEG C, and calcining carries out in shaft kiln.Material is ground or crushed after calcining, i.e.,
Obtain silicate-aluminium sulfate compound system clinker.The C that mineral composition wherein in clinker is 61%3S and36%
C2S、C3A and C4AF mineral, 3% nature of glass survey its specific surface area 4000cm2/ g, presetting period 76min, final setting time are
156min, 3d compression strength are 47.9MPa, and 7d compression strength is 48.5MPa, and 28d compression strength is 71.3MPa, stability (boiling
Cooking method) it is qualified, therefore clinker has reached early strong, the high-strength effect of intensity continuous development.
Embodiment 2
Above-mentioned three kinds of industrial residue carbide slags, residue phosphogypsum, sulfate slag are dried at 105 DEG C, until carbide slag, waste residue
Ardealite, sulfate slag moisture content be respectively less than 0.5wt%, the weight percent of specific formula constituent is as follows：65.0% drying
Carbide slag, 21.0% bauxite, 6.0% drying sludge ardealite, 3.0% sandstone, 5.0% drying sulfate slag.Its
Middle basicity factor is 1.23, aluminium-sulfur ratio 3.86, alumina silica ratio 0.82, lime saturation factor 0.61, silica modulus 0.87.Respectively
Fineness is 80 μm and tails over 12% or so after component separate compiling, and by each component mixing, complex cement raw material are obtained after homogenizing；It will system
The complex cement raw material obtained are calcined 40 minutes in 1350 ± 40 DEG C, and calcining carries out in high-temperature calcination stove.By object after calcining
Material cooling, material need to be cooled to room temperature in 30 minutes, and the clinker of firing is cooled down using electric fan.Grinding or crush after to get to
Silicate-aluminium sulfate compound system clinker.The C that mineral composition wherein in clinker is 59%3S andMineral, 37%
C2S、C3A and C4AF, 4% nature of glass survey its specific surface area 3800cm2/ g, presetting period 68min, final setting time are
132min, 3d compression strength are 43.6MPa, and 7d compression strength is 47.2MPa, and 28d compression strength is 69.8MPa, stability (boiling
Cooking method) it is qualified, therefore clinker has reached early strong, the high-strength effect of intensity continuous development.
Embodiment 3
Above-mentioned three kinds of carbide slags, residue phosphogypsum, sulfate slag are dried at 105 DEG C, until carbide slag, residue phosphogypsum,
The moisture content of sulfate slag is respectively less than 0.5wt%, and the weight percent of specific formula constituent is as follows：60.0% carbide slag,
25.0% bauxite, 9.0% drying sludge ardealite, 2.0% sandstone, 4.0% drying sulfate slag.Wherein basicity system
Number is 1.06, aluminium-sulfur ratio 4.31, alumina silica ratio 0.86, lime saturation factor 0.49, silica modulus 0.83.Each component is distinguished
Fineness is 80 μm and tails over 10% or so after grinding, and by each component mixing, complex cement raw material are obtained after homogenizing；It will be obtained compound
Cement slurry is calcined 30 minutes in 1340 ± 40 DEG C, and calcining carries out in tunnel oven.Material is ground or is crushed after calcining,
Obtain silicate-aluminium sulfate compound system clinker.The C that mineral composition wherein in clinker is 64%3S and34%
C2S、C3A and C4AF mineral, 2% nature of glass survey its specific surface area 3600cm2/ g, presetting period 71min, final setting time
For 169min, 3d compression strength is 48.3MPa, and 7d compression strength is 49.5MPa, and 28d compression strength is 73.1MPa, stability
(boiling process) is qualified, therefore clinker has reached early strong, the high-strength effect of intensity continuous development.
Embodiment 4
Above-mentioned three kinds of industrial residue carbide slags, residue phosphogypsum, sulfate slag are dried at 105 DEG C, until carbide slag, waste residue
Ardealite, sulfate slag moisture content be respectively less than 0.5wt%, the weight percent of specific formula constituent is as follows：56.0% drying
Carbide slag, 28.0% bauxite, 8.0% drying sludge ardealite, 3.4% sandstone, 4.6% drying sulfate slag.Respectively
Fineness is 80 μm and tails over 12% or so after component separate compiling, and by each component mixing, complex cement raw material are obtained after homogenizing；Wherein
Basicity factor is 0.99, aluminium-sulfur ratio 5.01, alumina silica ratio 0.90, lime saturation factor 0.35, silica modulus 0.90.It will system
The complex cement raw material obtained are calcined 30 minutes in 1360 ± 40 DEG C, and calcining carries out in rotary kiln.It is after calcining that material is cold
But, material need to be cooled to 60 DEG C in 25 minutes, and the clinker of firing is cooled down using grate-cooler.Grinding or after crushing to get to silicon
Hydrochlorate-aluminium sulfate compound system clinker.The C that mineral composition wherein in clinker is 53%3S and46% C2S、C3A
And C4AF mineral, 1% nature of glass survey its specific surface area 3500cm2/ g, presetting period 83min, final setting time 142min,
3d compression strength is 42.6MPa, and 7d compression strength is 45.3MPa, and 28d compression strength is 68.3MPa, and stability (boiling process) is closed
Lattice, therefore clinker has reached early strong, the high-strength effect of intensity continuous development.
Embodiment 5
Above-mentioned three kinds of carbide slags, residue phosphogypsum, sulfate slag are dried at 105 DEG C, until carbide slag, residue phosphogypsum,
The moisture content of sulfate slag is respectively less than 0.5wt%, and the weight percent of specific formula constituent is as follows：50.0% carbide slag,
30.0% bauxite, 10.0% drying sludge ardealite, 5.0% sandstone, 5.0% drying sulfate slag.Wherein basicity
Coefficient is 0.92, aluminium-sulfur ratio 5.10, alumina silica ratio 0.89, lime saturation factor 0.56, silica modulus 0.88.Each component point
Fineness is 80 μm and tails over 16% or so after other grinding, and by each component mixing, complex cement raw material are obtained after homogenizing；It will be obtained multiple
Cement raw material are calcined 40 minutes in 1320 ± 40 DEG C, and calcining carries out in shaft kiln.Material is ground or is crushed after calcining,
Obtain silicate-aluminium sulfate compound system clinker.The C that mineral composition wherein in clinker is 49%3S and50%
C2S、C3A and C4AF mineral, 1% nature of glass survey its specific surface area 3800cm2/ g, presetting period 79min, final setting time
For 173min, 3d compression strength is 41.9MPa, and 7d compression strength is 43.5MPa, and 28d compression strength is 64.8MPa, stability
(boiling process) is qualified, therefore clinker has reached early strong, the high-strength effect of intensity continuous development.
Claims (6)
1. a kind of method preparing silicate-aluminium sulfate compound system clinker using waste residue, which is characterized in that including walking as follows
Suddenly：
(1) preparation of complex cement raw material：It is by weight percent：50~70% drying carbide slag, 5~10% drying are useless
Slag ardealite, 3~5% drying sulfate slag, 2~5% sandstone, 20~30% bauxite mixing obtain after grinding compound
Cement slurry；The moisture content of wherein carbide slag, residue phosphogypsum, sulfate slag and bauxite is respectively less than 0.5wt%；
(2) preparation of complex cement clinker：By complex cement raw material made from step (1) in 1280 DEG C~1400 DEG C calcine 30~
40 minutes, material is cooled down after calcining, after crushing and grinding, obtains silicate-aluminium sulfate compound system clinker；Wherein
The C that mineral composition in clinker is 49%~64%3S and34%~50% C2S、C3A and C4AF mineral, 1~4%
The nature of glass, wherein C2S is 2CaO ﹒ SiO2, C3A is 3CaO ﹒ Al2O3, C4AF is 4CaO ﹒ Al2O3﹒ Fe2O3, C3S is 3CaO ﹒
SiO2,For 3CaO ﹒ 3Al2O3﹒ CaSO4。
2. a kind of method preparing silicate-aluminium sulfate compound system clinker using waste residue according to claim 1,
It is characterized in that, raw meal proportioning time control basicity factor is 0.92-1.28, aluminium-sulfur ratio 3.18-5.10, alumina silica ratio in step (1)
For 0.80-0.90, lime saturation factor 0.35-0.65, silica modulus 0.70-0.90；Each rate value is expressed as：
Basicity factor：
Aluminium-sulfur ratio：
Alumina silica ratio：
Lime saturation factor：
Silica modulus：
3. a kind of method preparing silicate-aluminium sulfate compound system clinker using waste residue according to claim 1,
It is characterized in that, fineness tails over 10%-16% for 80 μm after each component separate compiling in step (1).
4. a kind of method preparing silicate-aluminium sulfate compound system clinker using waste residue according to claim 1,
It is characterized in that, the calcining described in step (2) carries out in high-temperature calcination stove, rotary kiln, shaft kiln or tunnel oven.
5. a kind of method preparing silicate-aluminium sulfate compound system clinker using waste residue according to claim 1,
It is characterized in that, material is cooled to 0 DEG C~60 DEG C of temperature higher than room temperature in 20~30 minutes in step (2).
6. a kind of method preparing silicate-aluminium sulfate compound system clinker using waste residue according to claim 1,
It is characterized in that, the clinker being burnt into step (2) is cooled down using electric fan or grate-cooler.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109320110A (en) * | 2018-10-24 | 2019-02-12 | 河南理工大学 | It is a kind of using sulphur tailing as sulphoaluminate cement clinker of raw material and preparation method thereof |
| CN111825352A (en) * | 2019-05-31 | 2020-10-27 | 尧柏特种水泥技术研发有限公司 | Moderate heat portland cement produced by composite clinker |
| CN112624641A (en) * | 2020-12-25 | 2021-04-09 | 武汉理工大学 | Method for full-recycling phosphorus tailings without waste residues |
| CN113788636A (en) * | 2021-09-18 | 2021-12-14 | 北京金隅通达耐火技术有限公司 | Titanium-based aluminate cement and preparation method thereof |
| CN115677243A (en) * | 2022-12-08 | 2023-02-03 | 中国建筑材料科学研究总院有限公司 | Novel low-carbon cement clinker and preparation method thereof |
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| CN109320110A (en) * | 2018-10-24 | 2019-02-12 | 河南理工大学 | It is a kind of using sulphur tailing as sulphoaluminate cement clinker of raw material and preparation method thereof |
| CN111825352A (en) * | 2019-05-31 | 2020-10-27 | 尧柏特种水泥技术研发有限公司 | Moderate heat portland cement produced by composite clinker |
| CN112624641A (en) * | 2020-12-25 | 2021-04-09 | 武汉理工大学 | Method for full-recycling phosphorus tailings without waste residues |
| CN113788636A (en) * | 2021-09-18 | 2021-12-14 | 北京金隅通达耐火技术有限公司 | Titanium-based aluminate cement and preparation method thereof |
| CN115677243A (en) * | 2022-12-08 | 2023-02-03 | 中国建筑材料科学研究总院有限公司 | Novel low-carbon cement clinker and preparation method thereof |
| WO2024119867A1 (en) * | 2022-12-08 | 2024-06-13 | 中国建筑材料科学研究总院有限公司 | Low-carbon cement clinker and preparation method therefor |
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