CN106365477B - A method of preparing high-intensitive sulphate aluminium cement co-producing sulfuric acid - Google Patents

A method of preparing high-intensitive sulphate aluminium cement co-producing sulfuric acid Download PDF

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CN106365477B
CN106365477B CN201610841813.2A CN201610841813A CN106365477B CN 106365477 B CN106365477 B CN 106365477B CN 201610841813 A CN201610841813 A CN 201610841813A CN 106365477 B CN106365477 B CN 106365477B
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sulphate aluminium
cement
sulfuric acid
aluminium cement
clinker
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CN106365477A (en
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姚华龙
李兴平
朱崇计
胡兆平
刘阳
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KINGENTA NORSTERRA CHEMICAL Co Ltd
Kingenta Ecological Engineering Group Co Ltd
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KINGENTA NORSTERRA CHEMICAL Co Ltd
Kingenta Ecological Engineering Group Co Ltd
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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
    • 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
    • C04B7/36—Manufacture of hydraulic cements in general
    • 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
    • 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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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

The present invention relates to a kind of methods for preparing high-intensitive sulphate aluminium cement co-producing sulfuric acid, this method replaces lime stone and the natural gypsum with ardealite completely, after same bauxite, steel slag, silica and anthracite grinding homogenizing, at 1250~1300 DEG C, calcining prepares sulphate aluminium cement.The method of the present invention can increase substantially ardealite utilization rate, and the SO 2 tail gas of high concentration can prepare sulfuric acid by absorption.The sulphoaluminate cement clinker setting rate of preparation is fast, and early period, intensity was high and later strength also promotes stabilization, and performance test shows that the mechanical strength of the sulphate aluminium cement of the method for the present invention preparation meets quick hardening sulphoaluminate cement standard.

Description

A method of preparing high-intensitive sulphate aluminium cement co-producing sulfuric acid
Technical field
The present invention relates to a kind of methods for preparing high-intensitive sulphate aluminium cement co-producing sulfuric acid, belong to the technology of cement preparation Field.
Background technique
It is also higher and higher to the technical requirements of special cement with the modernization of engineering technology.Including special engineering There is special requirement to the speed of rapid condensation and hardening and each phase hardness when construction, such as the connection construction of cement pipeline, The construction etc. of the Foundation Fieldbus field of Large-Scale Equipment.Although using the continuous expansion with selling market, due to the higher cost of product It is restricted, more users is made to be unable to reach.On the other hand, as one of three big production of phosphate fertilizer states in the world, by The restriction of ardealite impurity index and application technology, it is difficult to realize large utilization, huge phosphate fertilizer industry leaves 300,000,000 tons of industry By-product ardealite, about 70,000,000 tons of annual discharge amount, utilization is about 17,000,000 tons, and utilization rate is less than 30%, it has also become phosphorus The bottleneck of compound fertilizer industry value chain.How using by-product ardealite sulphate aluminium cement is prepared, had become both at home and abroad One of the emphasis of researcher's research.
Chinese patent literature CN100351197C discloses a kind of manufacture craft of quick hardening sulphoaluminate cement, this technique with Raw-meal ingredient is dehydrated phosphogypsum 17-20%, lime stone 45-52%, alumina 31-35%, this technique successfully utilizes waste material phosphorus Gypsum can partially reduce the cost of sulphate aluminium cement, but phosphorus stone in the technique instead of the natural gypsum in raw-meal ingredient The usage amount of cream only accounts for the 17-20% of raw-meal ingredient, and the lime stone of 45-52% is also needed in invention, effective benefit is not achieved With the purpose of ardealite, in addition the decomposition of ardealite can discharge sulfur dioxide in technique, it is improper conduct oneself well to comprehend cause environmental pollution.
Chinese patent literature CN103304170B discloses a kind of method for producing sulphate aluminium cement, by lime stone, phosphorus Gypsum, low-grade bauxite and coke are configured to cement slurry by a certain percentage, calcine, forge at high temperature after grinding mixes By promoting ardealite decomposition as much as possible during burning, the calcium oxide for decomposing generation replaces part lime stone, sulfur dioxide Gas can be collected and prepare sulfuric acid, this processing compound is lime stone 30-60 parts, 25-55 parts of ardealite, low-grade bauxite 15-45 Part, the invention can also suitably reduce the cost of cement, but ardealite successfully using waste material ardealite instead of the natural gypsum Do not replace lime stone completely, still there is up to 30-60 parts of lime stone, the carbon dioxide that decomposition of limestone generates in raw-meal ingredient The concentration of sulfur dioxide can be diluted significantly, so that the cost of preparing sulfuric acid by using sulfur dioxide and difficulty increase.
Chinese patent literature CN101481222B discloses a kind of ardealite Partial Conversion sulphate aluminium cement by-product sulphur The method of sour ammonium, key step include ardealite conversion, conversion product be separated by filtration, the neutralization of conversion fluid, ammonium sulfate it is dense Contracting crystallizing and drying, the drying of filter cake and aluminium vanadine, raw meal proportioning and homogenizing, clinker burning and cooling, clinker be quenched, grinding and Change, calcine vent gas treatment etc..By to being not required to pretreated ardealite Partial Conversion and obtain meeting sulphate aluminium cement produce institute The mixture for needing dispensing requirements is not required to again additional lime stone, has expanded the application range of ardealite, but this technique needs first by phosphorus stone Cream is converted into calcium carbonate and then carries out raw-meal ingredient and calcining again, and required equipment and process flow are all complex, production cost It is high.
It is retrieved, has no that full utilization ardealite preparation setting rate is fast, early period, intensity was high and later strength is also promoted surely Determine the report of sulphate aluminium cement.
Summary of the invention
The problem of for the preparation of current sulphate aluminium cement, the present invention, which provides, a kind of prepares high-intensitive aluminium sulfate The method of cement joint production sulfuric acid, this method are fully utilized ardealite and replace the natural gypsum and lime stone, and can be by recycling tail gas Co-producing sulfuric acid, and process route is simple, production cost is low, has good economy and environmental benefit.
Summary of the invention:
The present invention is using ardealite, bauxite, steel slag, silica, anthracite as raw material, and high temperature is forged after ingredient, grinding, homogenizing It fires ripe material and directly obtains sulphate aluminium cement after clinker grinding, the natural gypsum or lime stone preparation inhomogeneity can also be added The sulphate aluminium cement of type, can not also the additional natural gypsum, directly obtain sulphate aluminium cement.
Detailed description of the invention:
A method of high-intensitive sulphate aluminium cement co-producing sulfuric acid is prepared, is comprised the following steps that
A. the preparation of cement slurry:
By following mass parts carry out ingredient: ardealite be 65-80 parts, 18-28 parts of bauxite, 1-2 parts of steel slag, silica 1-3 Part, 3-4 parts of anthracite；Each component is mixed, grinding, cement slurry is obtained after homogenizing；
B. the preparation of clinker:
By cement slurry made from step a in 1250~1300 DEG C, calcines 30-40 minutes, obtain clinker, it is calcined The SO 2 tail gas generated in journey is sent into sulfuric acid preparation system after collecting, and prepares sulfuric acid；
C. the preparation of sulphate aluminium cement:
The clinker that step b is obtained regrinds to get sulphate aluminium cement.
It is currently preferred:
Fineness is 120-180 mesh after material grinding in step a；
Al in the bauxite2O3Mass fraction is 60-75%, further preferred 66%；
The ardealite is half water ardealite.The ardealite can also be the natural gypsum, desulfurized gypsum and fluorite Cream.
Cement slurry material quality part is as follows in step a: ardealite be 70-75 parts, 18-25 parts of bauxite, steel slag 2-3 Part, 1-2 parts of silica, 3-4 parts of anthracite.
It is currently preferred:
Calcining described in step b carries out in rotary kiln, shaft kiln or tunnel oven, carries out in further preferred rotary kiln.
Preferably 1280~1300 DEG C of calcination temperature in step b, calcination time 35-40 minutes.
The clinker that step b is obtained can add the natural gypsum as requested, and different types of sulphate aluminium cement is made.
The amount of allocating of the natural gypsum calculates as follows:
CG=0.13*M*AC/S
CG--- the mass fraction (ratio of the natural gypsum and clinker) of natural gypsum incorporation, if clinker is 1；
AC--- C in clinker4A3The mass fraction of _ S_；
S --- SO in the natural gypsum3Mass fraction；
M --- natural gypsum coefficient, natural gypsum dosage is different in different sulphate aluminium cements, and M value is different, M value Range is between 0-4.
The value of different types of sulphate aluminium cement M is as follows:
When M value: early strong, high-strength sulphate aluminium cement is made in 0-1；When M value: intumescent sulphur aluminic acid is made in 1-2 Salt cement；When M value: seif-citing rate type sulphate aluminium cement is made in 2-4；When M value: low alkalinity type sulphur aluminium is made in 2.5-3.0 Acid salt cement.
It is currently preferred:
It is 300~400m that clinker, which is ground to specific surface area, in step c2/ kg, further preferred 350m2/kg.Using ball Grinding machine carries out.
Above-mentioned SO 2 tail gas collection prepares the process of sulfuric acid, by the prior art.
The cement slurry that the present invention is made of ardealite, bauxite, steel slag, silica, anthracite is high after grinding, homogenizing The sulphate aluminium cement obtained after temperature calcining, performance test show the sulphate aluminium cement prepared using method of the invention Mechanical strength meets quick hardening sulphoaluminate cement standard, and clinker setting rate is fast, and early period, intensity was high and later strength is also promoted surely It is fixed, by adjusting cement raw mix proportioning mode, the natural gypsum is substituted completely with ardealite and lime stone (is taken by calcium sulfate completely For calcium carbonate), the sulfuric acid calcium reduction in ardealite is generated by sulfur dioxide and calcium oxide by anthracite, sulfur dioxide is through oxygen Change to absorb and sulfuric acid product is made, aluminium sulfate is made through high temperature sintering in calcium oxide, bauxite and the unreduced calcium sulfate of generation Cement.
Cement slurry is in high-temperature burning process, and most of ardealite is decomposed under anthracite effect, and resolution ratio is 70-85%, wherein steel slag can provide iron oxide, and tetra calcium aluminoferrite can be formed together with calcium oxide and aluminium oxide, and reinforcement is strong early period Degree, silica carry out appropriateness supplement silica, to properly increase the content of dicalcium silicate, reinforcement later strength reaches early period The high later strength of intensity promotes stable double effects, and participating in calcium oxide that the ardealite of reaction is decomposed can be all instead of lime Stone provides calcium oxide, and the concentration of SO 2 gas for decomposing generation is 7-9%, can be used for producing sulfuric acid；Remaining undecomposed phosphorus Gypsum is converted into high temperature gypsum, the outer natural gypsum added needed for alternative clinker product after high-temperature calcination.
Main chemical reactions of the present invention are as follows:
The solid slag that heretofore described ardealite generates when referring in phosphoric acid production with sulfuric acid treating phosphorite, it is different The ardealite that technique obtains is used equally for the present invention.
The invention has the following advantages:
1. ardealite can substitute stone completely in the present invention compared to the method that other prepare sulphate aluminium cement using ardealite Lime stone and the natural gypsum carry out clinkersintering, greatly improve the utilization rate of ardealite, realize ardealite resource utilization, and Effectively reduce the cost of sulphate aluminium cement.
2. the decomposition reaction that anthracite promotes most of calcium sulfate in ardealite is added in raw material, undecomposed ardealite The sulphate component that a part is formed as calcium sulphoaluminate in cement clinker mineral, another part can be used to replace outside clinker The natural dihydrate gypsum component mixed, can directly produce sulphate aluminium cement.
3. substituting the natural gypsum and lime stone completely with ardealite (i.e. by sulfuric acid due to not using lime stone in ingredient Calcium is completely instead of calcium carbonate), so the concentration of SO 2 gas that decomposing ardealite generates is high, acid making system can be met to two The requirement of sulfur oxide concentration avoids the pollution problem of sulfur dioxide.
4. the present invention can be properly added Industrial Solid Waste steel slag and silica according to Fe in raw material, the content of Si element, to mention For di-iron trioxide and silica, suitable tetra calcium aluminoferrite and dicalcium silicate are formed in cement, thus before reinforcement cement The mechanical property of phase and later period.
5. the composite can be widely applied to produce different types of aluminium sulfate water such as fast hard, high-strength, expansion, low alkalinity Mud.
Specific embodiment
Essence in order to better understand the present invention, below with reference to embodiment, the content of the present invention will be further explained, But limitation of the present invention cannot be considered as.
Ardealite in each embodiment is taken from big two water of Nuo Taier Chemical Co., Ltd., the half water law Wetting phosphorus of Nintaus Half water ardealite of sour by-product, main component are shown in Table 1, and the main component of steel slag such as the following table 2, bauxite is the life of Hebei Shijiazhuang It produces, main component is shown in Table 3, and the main component of silica is as shown in table 4 below.
Table 1: the main component and content of ardealite
Component CaO SO3 Fe2O3 Al2O3 SiO2
Content % 36.96 52.63 0.15 0.57 1.97
Table 2: the main component and content of steel slag
Component CaO Fe2O3 SiO2 Al2O3 SO3
Content % 47.45 18.75 16.43 5.31 /
Table 3: the main composition and content of bauxite
Component CaO Fe2O3 SiO2 Al2O3 SO3
Content % 1.03 5.97 15.20 66.00 /
Table 4: the main component and content of silica
Component CaO Fe2O3 SiO2 Al2O3 SO3
Content % 7.85 1.24 78.67 0.82 /
Embodiment 1:
According to following mass fraction progress ingredient: 65 parts of ardealite, 28 parts of bauxite, 1 part of steel slag, 3 parts of silica, anthracite 3 parts；It is 120 mesh that each component grinding, which is mixed to fineness, again, obtains cement slurry；The cement slurry prepared is placed in rotary kiln It is interior to be calcined 30 minutes at 1250 DEG C, clinker is obtained, the tail gas after calcining containing sulfur dioxide send sulfuric acid preparation system to carry out Prepare sulfuric acid；The clinker of firing is regrind to 350m2After/Kg, sulphate aluminium cement product, gained sulphur aluminium can be obtained The mechanical property of acid salt cement is shown in Table 5.
Embodiment 2:
According to following mass fraction progress ingredient: 70 parts of ardealite, 23 parts of bauxite, 2 parts of steel slag, 2 parts of silica, anthracite 3 parts；It is 150 mesh that each component grinding, which is mixed to fineness, again, obtains cement slurry；The cement slurry prepared is placed in rotary kiln It is interior to be calcined 30 minutes at 1300 DEG C, clinker is obtained, the tail gas after calcining containing sulfur dioxide send sulfuric acid preparation system to carry out Prepare sulfuric acid；The clinker of firing is regrind to 350m2After/Kg, sulphate aluminium cement product, gained sulphur aluminium can be obtained The mechanical property of acid salt cement is shown in Table 5.
Embodiment 3:
According to following mass fraction progress ingredient: 75 parts of ardealite, 19 parts of bauxite, 1 part of steel slag, 2 parts of silica, anthracite 4 parts；It is 180 mesh that each component grinding, which is mixed to fineness, again, obtains cement slurry；The cement slurry prepared is placed in rotary kiln It is interior to be calcined 30 minutes at 1300 DEG C, clinker is obtained, the tail gas after calcining containing sulfur dioxide send sulfuric acid preparation system to carry out Sulfuric acid is prepared, the clinker of firing is regrind to 350m2After/Kg, sulphate aluminium cement product, gained sulphur aluminium can be obtained The mechanical property of acid salt cement is shown in Table 5.
Embodiment 4:
According to following mass fraction progress ingredient: 80 parts of ardealite, 18 parts of bauxite, 1 part of steel slag, 1 part of silica, anthracite 4 parts；It is 180 mesh that each component grinding, which is mixed to fineness, again, obtains cement slurry；The cement slurry prepared is placed in rotary kiln It is interior to be calcined 30 minutes at 1300 DEG C, clinker is obtained, the tail gas after calcining containing sulfur dioxide send sulfuric acid preparation system to carry out Sulfuric acid is prepared, the clinker of firing is regrind to 350m2After/Kg, sulphate aluminium cement product, gained sulphur aluminium can be obtained The mechanical property of acid salt cement is shown in Table 5.
Embodiment result:
Table 5: sulphate aluminium cement glue sand mechanical property
Sulphate aluminium cement glue sand mechanical property performance, the data from table 5 are measured by using resistance to compression, anti-folding means of testing It is found that sulphate aluminium cement produced by the present invention reaches 30~42MPa in 1d intensity, it can be seen that early period high, the hardening speed of intensity Degree is fast, and the intensity of 28d reaches 47~58MPa, and later strength is promoted, the mechanics of the sulphate aluminium cement of method sintering of the invention Performance meets the standard of the sulphate aluminium cement in GB20472-2006.
The above is only the preferred embodiment of the present invention, it is noted that above embodiment is not construed as to this hair Bright limitation, protection scope of the present invention should be defined by the scope defined by the claims., for the common of the art For technical staff, without departing from the spirit and scope of the present invention, several improvements and modifications can also be made, also should be regarded as this The protection scope of invention.

Claims (7)

1. a kind of method for preparing high-intensitive sulphate aluminium cement co-producing sulfuric acid, comprises the following steps that
A. the preparation of cement slurry:
By following mass parts carry out ingredient: ardealite be 70-75 parts, 18-25 parts of bauxite, 2-3 parts of steel slag, 1-2 parts of silica, nothing 3-4 parts of bituminous coal；Each component is mixed, grinding, cement slurry is obtained after homogenizing；Ardealite is half water ardealite；The bauxite Middle Al2O3Mass fraction is 60-75%；
B. the preparation of clinker:
It by cement slurry made from step a in 1250 ~ 1300 DEG C, calcines 30-40 minutes, obtains clinker, in calcination process The SO 2 tail gas of generation is sent into sulfuric acid preparation system after collecting, and prepares sulfuric acid；
C. the preparation of sulphate aluminium cement:
The clinker that step b is obtained regrinds to get sulphate aluminium cement.
2. the method according to claim 1 for preparing high-intensitive sulphate aluminium cement co-producing sulfuric acid, which is characterized in that step Fineness is 120-180 mesh after material grinding in a.
3. the method according to claim 1 for preparing high-intensitive sulphate aluminium cement co-producing sulfuric acid, which is characterized in that step Calcining described in b carries out in rotary kiln, shaft kiln or tunnel oven.
4. the method according to claim 1 for preparing high-intensitive sulphate aluminium cement co-producing sulfuric acid, which is characterized in that step Calcination temperature is 1280 ~ 1300 DEG C, calcination time 35-40 minutes in b.
5. the method according to claim 1 for preparing high-intensitive sulphate aluminium cement co-producing sulfuric acid, which is characterized in that step The clinker that b is obtained can add the natural gypsum as requested, and different types of sulphate aluminium cement is made；
The amount of allocating of the natural gypsum calculates as follows:
CG=0.13*M*AC/S
CG--- the mass fraction of natural gypsum incorporation, the ratio of the natural gypsum and clinker, if clinker is 1；
AC--- in clinkerMass fraction；
S --- SO in the natural gypsum3Mass fraction；
M --- natural gypsum coefficient, natural gypsum dosage is different in different sulphate aluminium cements, and M value is different, M value range Between 0-4.
6. the method according to claim 5 for preparing high-intensitive sulphate aluminium cement co-producing sulfuric acid, which is characterized in that different The value of the sulphate aluminium cement M of type is as follows:
When M value: early strong, high-strength sulphate aluminium cement is made in 0-1；When M value: intumescent aluminium sulfate water is made in 1-2 Mud；When M value: seif-citing rate type sulphate aluminium cement is made in 2-4；When M value: low alkalinity type aluminium sulfate is made in 2.5-3.0 Cement.
7. the method according to claim 1 for preparing high-intensitive sulphate aluminium cement co-producing sulfuric acid, which is characterized in that step It is 300~400m that clinker, which is ground to specific surface area, in c2/kg。
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CN109987866B (en) * 2019-04-15 2020-03-31 山东大学 Method and system for producing low-alkalinity new mineral system sulphoaluminate cement by using steel slag
CN110357461A (en) * 2019-07-31 2019-10-22 吉林亚泰水泥有限公司 It is a kind of using vessel slag as the G of raw material grade oil-well cement clinker and preparation method thereof
CN112159190A (en) * 2020-09-16 2021-01-01 贵州正和天筑科技有限公司 Special pasting mortar for phosphogypsum and preparation method thereof
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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103304170A (en) * 2013-06-28 2013-09-18 重庆大学 Method for producing sulphate aluminum cement
CN105129744A (en) * 2015-07-21 2015-12-09 湖北湖大天沭新能源材料工业研究设计院有限公司 Pre-heating decomposition method of producing sulfuric acid from phosphogypsum with co-production of cement

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103304170A (en) * 2013-06-28 2013-09-18 重庆大学 Method for producing sulphate aluminum cement
CN105129744A (en) * 2015-07-21 2015-12-09 湖北湖大天沭新能源材料工业研究设计院有限公司 Pre-heating decomposition method of producing sulfuric acid from phosphogypsum with co-production of cement

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