CN109369053A - Utilize the process of aluminium ash manufacture accelerator and flocculant - Google Patents
Utilize the process of aluminium ash manufacture accelerator and flocculant Download PDFInfo
- Publication number
- CN109369053A CN109369053A CN201811567583.0A CN201811567583A CN109369053A CN 109369053 A CN109369053 A CN 109369053A CN 201811567583 A CN201811567583 A CN 201811567583A CN 109369053 A CN109369053 A CN 109369053A
- Authority
- CN
- China
- Prior art keywords
- acid
- aluminium
- aluminium ash
- scheme
- flocculant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 35
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 35
- 239000004411 aluminium Substances 0.000 title claims abstract description 32
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 title claims abstract description 13
- 230000008569 process Effects 0.000 title claims abstract description 8
- 239000002253 acid Substances 0.000 claims abstract description 26
- 239000007788 liquid Substances 0.000 claims abstract description 14
- 239000002699 waste material Substances 0.000 claims abstract description 14
- 239000002994 raw material Substances 0.000 claims abstract description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 26
- 238000002156 mixing Methods 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 7
- 239000000047 product Substances 0.000 claims description 7
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 6
- ANBBXQWFNXMHLD-UHFFFAOYSA-N aluminum;sodium;oxygen(2-) Chemical compound [O-2].[O-2].[Na+].[Al+3] ANBBXQWFNXMHLD-UHFFFAOYSA-N 0.000 claims description 5
- 239000006227 byproduct Substances 0.000 claims description 5
- 229910001388 sodium aluminate Inorganic materials 0.000 claims description 5
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- 238000004458 analytical method Methods 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 238000013329 compounding Methods 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 3
- 235000021110 pickles Nutrition 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 238000005245 sintering Methods 0.000 claims description 3
- 239000002893 slag Substances 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims description 3
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 2
- 239000012752 auxiliary agent Substances 0.000 claims description 2
- 238000001914 filtration Methods 0.000 claims description 2
- 229910017604 nitric acid Inorganic materials 0.000 claims description 2
- 235000011837 pasties Nutrition 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract description 9
- 239000003513 alkali Substances 0.000 abstract description 4
- 239000004567 concrete Substances 0.000 abstract description 2
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 abstract description 2
- 230000009467 reduction Effects 0.000 abstract description 2
- 150000003839 salts Chemical class 0.000 abstract description 2
- 239000011378 shotcrete Substances 0.000 abstract description 2
- 150000004645 aluminates Chemical class 0.000 abstract 1
- 239000002956 ash Substances 0.000 description 17
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 8
- 229910021529 ammonia Inorganic materials 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 229910017083 AlN Inorganic materials 0.000 description 2
- PIGFYZPCRLYGLF-UHFFFAOYSA-N Aluminum nitride Chemical compound [Al]#N PIGFYZPCRLYGLF-UHFFFAOYSA-N 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 235000017550 sodium carbonate Nutrition 0.000 description 2
- BNGXYYYYKUGPPF-UHFFFAOYSA-M (3-methylphenyl)methyl-triphenylphosphanium;chloride Chemical compound [Cl-].CC1=CC=CC(C[P+](C=2C=CC=CC=2)(C=2C=CC=CC=2)C=2C=CC=CC=2)=C1 BNGXYYYYKUGPPF-UHFFFAOYSA-M 0.000 description 1
- IRPGOXJVTQTAAN-UHFFFAOYSA-N 2,2,3,3,3-pentafluoropropanal Chemical compound FC(F)(F)C(F)(F)C=O IRPGOXJVTQTAAN-UHFFFAOYSA-N 0.000 description 1
- KLZUFWVZNOTSEM-UHFFFAOYSA-K Aluminum fluoride Inorganic materials F[Al](F)F KLZUFWVZNOTSEM-UHFFFAOYSA-K 0.000 description 1
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910000329 aluminium sulfate Inorganic materials 0.000 description 1
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 description 1
- 229940125717 barbiturate Drugs 0.000 description 1
- 229910001570 bauxite Inorganic materials 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- -1 compound aluminium salt Chemical class 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 239000002075 main ingredient Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000012858 packaging process Methods 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
- C04B22/08—Acids or salts thereof
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F7/00—Compounds of aluminium
- C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
- C01F7/04—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom
- C01F7/06—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom by treating aluminous minerals or waste-like raw materials with alkali hydroxide, e.g. leaching of bauxite according to the Bayer process
- C01F7/0693—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom by treating aluminous minerals or waste-like raw materials with alkali hydroxide, e.g. leaching of bauxite according to the Bayer process from waste-like raw materials, e.g. fly ash or Bayer calcination dust
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
- C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
-
- 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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/10—Accelerators; Activators
- C04B2103/12—Set accelerators
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Geology (AREA)
- Geochemistry & Mineralogy (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The present invention relates to aluminium ash and spent acid, a kind of process of salkali waste manufacture gunite concrete accelerator and aluminate class flocculant, technological core is: using metallic aluminium and acid & alkali liquid contact exothermic character in aluminium ash promote under the conditions of being not required to external heat source aluminium it is grey in aluminium oxide with acid & alkali liquid react into aluminum soluble salt, the technological design is not only raw material used in manufacture accelerator and flocculant and selects novelty, and it creatively provides for a large amount of processing industrial residue waste liquids easy and can value-added method of disposal, has practicability outstanding after implementation, especially in energy conservation, consumption reduction and waste residue and liquid disposition environmental pollution comprehensive improvement bring notable results.
Description
Technical field
The present invention relates to aluminium ashes and spent acid, salkali waste to manufacture gunite concrete accelerator (hereinafter referred to as: accelerator) and aluminium
A kind of process of the Barbiturates for flocculant (hereinafter referred to as: flocculant) series of products of sewage purification, belongs to Industry Waste
Gurry regenerated resources field of comprehensive utilization.
Background technique
Aluminium ash results from waste after aluminum smelting technology slag secondary operation, and main ingredient is metallic aluminium 5~15%, aluminium oxide 50
~80%, and contain a certain amount of aluminium nitride, and aluminium nitride meets water decomposition and generates the foul smell influence environment that ammonia generates, at present
Aluminium ash after extracting metallic aluminium does not allow to fill most of directly stockpiling, thus reduce the innoxious processing of aluminium ash warehousing pressure and
The research and development of bauxite resource comprehensive utilization technique have extensive social benefit.
The a large amount of spent acid of by-product, salkali waste liquid in the production of the enterprises such as chemical industry, pesticide, glass, steel, metallurgy, electronics, these are useless
The cleaning discharge operating cost of liquid is very high, and general enterprises are difficult to bear, therefore need a kind of Resource comprehensive utilization method, to this
Spent acid, the salkali waste liquid of industry are rationally effectively treated.
Summary of the invention
The present invention provides a kind of process using aluminium ash and spent acid, spent lye production accelerator and flocculant, master
It aims to overcome that spent acid, heat release is fast in spent lye and aluminium ash hybrid reaction, and has combustible hydrogen and the cleaning of foul smell ammonia
Discharge the production run defect low with comprehensive utilization of resources economic benefit at high cost.
To solve the problems, such as that drawbacks described above, the present invention use following process program:
1., using acid and alkali-resistance mixing plant by aluminium ash and acid pickle scheme mixes and stirs into paste mixture, the mixture is aged, dries
Dry, crushing, dress job contract sequence can be made into accelerator and flocculant.The program is mainly characterized by acid solution and is gradually added with spray pattern
Premix is mixed and stirred in aluminium ash, efficiently solves metallic aluminium and acid liquid reaction very exothermic in aluminium ash, and inhibit foul smell ammonia a large amount of
Discharge defect.The program be not limited to using hydrofluoric acid, sulfuric acid, hydrochloric acid, nitric acid waste and certified products individually or mix acid liquor and aluminium it is grey
Reaction is mixed and stirred, the compound aluminium salt powder product of solubility of aluminum fluoride, aluminum sulfate, aluminium chloride, aluminum nitrate chemical analysis is generated.
2., using acid and alkali-resistance mixing plant by aluminium ash and spent lye and appropriate exciting agent scheme stirs into pasty slurry, the slurry
Sodium aluminate solution is made in concentrated, filtering, which manufactures for accelerator and flocculant.The program is not limited to using hydroxide
1. or scheme 3. mixture sodium, carbonic acid waste liquor of sodium and certified products are individually or mixed liquor is mixed and stirred with aluminium ash and reacted, and scheme can be added in filter residue
It recycles.
Scheme is 3., using acid and alkali-resistance mixing plant by aluminium ash and spent lye or by-product alkaline residue and the calcics such as agstone or carbide slag
Class desiliconization auxiliary agent stirs into paste or sodium aluminate clinker is made through high temperature sintering in compounding grinding mixing, the mixture, and the sintering is ripe
Material is manufactured by compounding grinding, packaging process for accelerator and flocculant.The program is not limited to using sodium hydroxide, sodium carbonate
Independent or mixing spent lye or by-product alkaline residue and certified products raw material are mixed and stirred with aluminium ash and are reacted.
Specific embodiment
The technology of the present invention core is: being not required to external heat source item using metallic aluminium in aluminium ash and acid & alkali liquid contact exothermic character
Aluminium oxide in aluminium ash is promoted with acid & alkali liquid to react into aluminum soluble salt under part, which is not only to manufacture accelerator and flocculation
Raw material used in agent is selected novel and creatively largely handles industrial residue waste liquid.Especially generate spent acid, spent lye enterprise
Industry is implemented after this inventive technique not dispose waste liquid in a manner of freight charges to subsidize, and is provided for easy and can be value-added practical
Technology.3. scheme uses aluminium ash, with spent lye by-product soda ash and dry production powder accelerator enterprise, it is ripe to produce sodium aluminate to be former
Material provides practical technique for accelerator and flocculant manufacture technological transformation.
The investment of the technology of the present invention simple process newly added equipment is small, object generation without secondary pollution in production, wherein wet processing
Acid mist and foul smell ammonia occurrence quantity are less, and being aided with sprinkling equipment can harmless treatment.Have practicability outstanding after implementation,
Especially bring notable results in energy conservation, consumption reduction and waste residue and liquid disposition environmental pollution comprehensive improvement.
Claims (4)
1. utilizing the process of waste residue and liquid manufacture accelerator and flocculant, which is characterized in that including following scheme:
1. aluminium ash and acid pickle are mixed and stirred into paste mixture using acid and alkali-resistance mixing plant by scheme, aged, drying, crush,
Powder product is made in dress job contract sequence.2. scheme is stirred into aluminium ash and spent lye and appropriate exciting agent using acid and alkali-resistance mixing plant
Sodium aluminate solution is made in pasty slurry, concentrated, filtering.3. scheme uses acid and alkali-resistance mixing plant by aluminium ash and spent lye or pair
It produces alkaline residue and the calcics class desiliconization auxiliary agent such as agstone or carbide slag stirs into paste or compounding grinding mixing, through high temperature sintering system
At sodium aluminate clinker.
2. scheme described in claims 1 1. used in acid pickle, chemical analysis be not limited to hydrofluoric acid, sulfuric acid, hydrochloric acid,
Nitric acid is individually or mix acid liquor utilizes.
3. scheme described in claims 1 is 2., 3. used spent lye or by-product alkaline residue, chemical analysis are not limited to scheme
Sodium hydroxide, sodium carbonate are individually or mixing utilizes.
It is not limited to be used cooperatively with acid or alkaline certified products raw material 4. aluminium ash described in claims 1 utilizes.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2018219848270 | 2018-11-29 | ||
| CN201821984827 | 2018-11-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109369053A true CN109369053A (en) | 2019-02-22 |
Family
ID=65371263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811567583.0A Pending CN109369053A (en) | 2018-11-29 | 2018-12-24 | Utilize the process of aluminium ash manufacture accelerator and flocculant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109369053A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110314922A (en) * | 2019-07-10 | 2019-10-11 | 三明学院 | A kind of aluminium ash-carbide slurry integrated conduct method |
| CN112521047A (en) * | 2021-01-08 | 2021-03-19 | 成都楠裘榕科技有限公司 | Preparation method of concrete accelerator |
| CN114105513A (en) * | 2021-11-22 | 2022-03-01 | 云南森博混凝土外加剂有限公司 | Alkali-free accelerator and preparation method and application thereof |
| CN116462438A (en) * | 2023-05-22 | 2023-07-21 | 焦作市豫达新材料科技有限公司 | Process for producing cement accelerator by using carbide sludge |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1088188A (en) * | 1992-12-18 | 1994-06-22 | 孔宪厚 | Cement accelerator and production method thereof |
| KR20130047911A (en) * | 2011-11-01 | 2013-05-09 | 이윤석 | A solidifying agent for black mud and a process for solidifying black mud |
| CN106892444A (en) * | 2015-12-21 | 2017-06-27 | 中国科学院过程工程研究所 | A kind of method of utilization waste hydrochloric acid and aluminium ash production polyaluminium chloride water purification agent |
-
2018
- 2018-12-24 CN CN201811567583.0A patent/CN109369053A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1088188A (en) * | 1992-12-18 | 1994-06-22 | 孔宪厚 | Cement accelerator and production method thereof |
| KR20130047911A (en) * | 2011-11-01 | 2013-05-09 | 이윤석 | A solidifying agent for black mud and a process for solidifying black mud |
| CN106892444A (en) * | 2015-12-21 | 2017-06-27 | 中国科学院过程工程研究所 | A kind of method of utilization waste hydrochloric acid and aluminium ash production polyaluminium chloride water purification agent |
Non-Patent Citations (2)
| Title |
|---|
| 李远兵等: "《铝工业固体废弃物综合利用》", 31 March 2015, 冶金工业出版社 * |
| 潘碌亭等: "聚合氯化铝絮凝剂的制备技术研究现状与进展", 《工业用水与废水》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110314922A (en) * | 2019-07-10 | 2019-10-11 | 三明学院 | A kind of aluminium ash-carbide slurry integrated conduct method |
| CN112521047A (en) * | 2021-01-08 | 2021-03-19 | 成都楠裘榕科技有限公司 | Preparation method of concrete accelerator |
| CN114105513A (en) * | 2021-11-22 | 2022-03-01 | 云南森博混凝土外加剂有限公司 | Alkali-free accelerator and preparation method and application thereof |
| CN114105513B (en) * | 2021-11-22 | 2022-10-25 | 云南森博混凝土外加剂有限公司 | Alkali-free accelerator and preparation method and application thereof |
| CN116462438A (en) * | 2023-05-22 | 2023-07-21 | 焦作市豫达新材料科技有限公司 | Process for producing cement accelerator by using carbide sludge |
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Application publication date: 20190222 |
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