CN113831051A - Mineral powder grinding aid and preparation method and application thereof - Google Patents
Mineral powder grinding aid and preparation method and application thereof Download PDFInfo
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- CN113831051A CN113831051A CN202111058265.3A CN202111058265A CN113831051A CN 113831051 A CN113831051 A CN 113831051A CN 202111058265 A CN202111058265 A CN 202111058265A CN 113831051 A CN113831051 A CN 113831051A
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- mineral powder
- grinding aid
- powder grinding
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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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
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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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/52—Grinding aids; Additives added during grinding
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a mineral powder grinding aid and a preparation method and application thereof. A mineral powder grinding aid is prepared from the following raw materials: sulfates, aluminates, alkali metal hydroxides, and itaconic acid. The mineral powder grinding aid disclosed by the invention can react with components in slag under a water-containing condition, so that the activity and strength of the obtained mineral powder are improved.
Description
Technical Field
The invention belongs to the technical field of building materials, and particularly relates to a mineral powder grinding aid as well as a preparation method and application thereof.
Background
The slag is called granulated blast furnace slag as a whole, and is waste slag generated in the process of smelting pig iron in a steel plant. The production route of the slag is as follows: in the blast furnace process, in addition to iron ore and fuel (coke), in order to lower the smelting temperature, appropriate amounts of limestone and dolomite are added as fluxes. The decomposition products (calcium oxide and magnesium oxide) of the cosolvent can be subjected to phase melting with waste ores in iron ores and ash in coke to generate a melt with silicate and aluminosilicate as main components, the melt floats on the surface of molten iron and is periodically discharged from a slag discharge port, and granular particles formed after air or water quenching treatment are slag.
Slag is an industrial waste, but because of CaO and SiO in the slag2And Al2O3The mass ratio of the cement clinker is more than 85 percent, is similar to the components of the cement clinker, has potential activity, is a green and environment-friendly building material with low cost, and is expected to be used as a substitute of the cement.
The mineral powder refers to slag powder, is short for granulated blast furnace slag powder, is powder which is prepared by drying and grinding granulated blast furnace slag meeting the GB/T203 standard to obtain powder with considerable fineness and meeting a certain activity index, and is a concrete admixture.
The mineral powder is used for replacing cement, so that the pollution caused by cement production is reduced, and the production cost of concrete is reduced. According to the requirements of environmental protection and quality control, mineral powder is produced by mineral powder production enterprises uniformly, and the activity index of 7d of S95 slag powder is more than 75 percent and the activity index of 28 days is more than 95 percent. However, compared with cement, the strength of the mineral powder in the early hydration process is lower, and the use of the mineral powder does not achieve the expected use effect due to the limitation of the factors such as low activity, poor grinding performance, poor stability and the like of slag.
Generally, a means for improving the grinding performance, improving the activity and reducing the energy consumption of the mineral powder is to add a grinding aid in the grinding process, but the existing grinding aid can not meet various performance requirements of the mineral powder for a while.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art described above. Therefore, the invention provides a mineral powder grinding aid which can react with components in slag to improve the activity and strength of the obtained mineral powder.
The invention also provides a preparation method of the mineral powder grinding aid.
The invention also provides an application of the mineral powder grinding aid in preparation of mineral powder.
According to one aspect of the invention, the preparation raw materials of the mineral powder grinding aid comprise: sulfates, aluminates, alkali metal hydroxides, and itaconic acid.
According to a preferred embodiment of the present invention, at least the following advantages are provided:
(1) the mineral powder is prepared by grinding slag, the components of the slag are different from those of the traditional cement clinker, concretely, the main components of the slag are anorthite, anorthite and dicalcium silicate, and the slag also contains a large amount of CaO and SiO2And A2O3(ii) a The glass phase in the slag has certain latent activity, specifically, the main forms of the glass phase comprise a silicon phase and a calcium phase, wherein the calcium phase with the latent activity;
through the research on the components and the compositions of the mineral powder, the sulfate can show a better excitation effect (activate the potential activity of a calcium phase) aiming at the solidification process of the calcium phase in the mineral powder during the internal hydration process of the mineral powder; the early strength of the mineral powder can also be improved by the sodium aluminate;
compared with the pure aluminate and sulfate, the combination of the sodium aluminate and the sulfate can synergistically excite and improve the strength of the mineral powder; specifically, sulfate and aluminate are ionized by water to form sulfate ions, aluminate ions and corresponding cations, and can react with alumina, calcium oxide and the like in slag (raw materials for preparing mineral powder) to generate hydrated calcium sulfoaluminate in an alkaline environment (created by alkali metal hydroxide), so that hydration products are increased, and the early strength of the obtained mineral powder can be improved.
(2) Chloride salt is often added into the traditional mineral powder grinding aid to improve the strength of the mineral powder obtained by grinding, and chloride ions in the mineral powder grinding aid can corrode metal base materials such as reinforcing steel bars and the like in subsequent application of the mineral powder.
In the mineral powder grinding aid provided by the invention, the salt is the combination of sodium aluminate and sulfate, so that the (excessive) addition of chloride ions can be avoided, and the corrosion of concrete to reinforcing steel bars can be prevented.
(3) The alkali metal hydroxide can adjust the pH value of the system and provide environmental support for the activation of the activity of the obtained mineral powder, and particularly, the hydroxide ions in the alkali can disintegrate the calcium phase in the mineral powder to perform the following reaction of ≡ Si-O-Ca-O-Si ≡ 2NaOH → 2 ≡ Si-O-Na + Ca (OH)2Thereby improving the activity of the obtained mineral powder.
(4) In the grinding process of the mineral powder, itaconic acid in the mineral powder grinding aid contains a small amount of carboxyl (-COOH), so that the adsorption capacity of the grinding aid and the electrostatic repulsion among cement particles can be improved, the mineral powder particles can be dispersed, and the grinding efficiency is improved.
In some embodiments of the invention, the sulfate salt comprises at least one of sodium sulfate and potassium sulfate.
In some preferred embodiments of the invention, the sulfate salt is sodium sulfate.
In some embodiments of the present invention, the sulfate is added in an amount of 6 to 8 parts by weight.
In some embodiments of the invention, the aluminate comprises at least one of sodium aluminate and potassium aluminate.
In some preferred embodiments of the invention, the sulfate salt is sodium aluminate.
In combination with the solubility, cost and use effect of sulfate and aluminate, the effect is optimal when sodium sulfate is matched with sodium aluminate.
In some embodiments of the present invention, the aluminate is added in an amount of 8 to 10 parts by weight.
In some embodiments of the present invention, the alkali metal hydroxide is added in an amount of 2 to 3 parts by weight.
In some embodiments of the present invention, the itaconic acid is added in an amount of 2 to 3 parts by weight.
In some embodiments of the invention, the alkali metal hydroxide comprises at least one of sodium hydroxide and potassium hydroxide.
In some embodiments of the invention, the raw material for preparing the mineral powder grinding aid further comprises a polymeric polyol.
In some embodiments of the present invention, the polymeric polyol is added in an amount of 7 to 9 parts by weight.
In some embodiments of the present invention, the polymeric polyol has a number of hydroxyl groups ≧ 2 per monomer.
In some embodiments of the present invention, the monomer of the polymeric polyol is at least one of ethylene glycol, diethylene glycol, and glycerol.
In some preferred embodiments of the present invention, the polymeric polyol is formed by the polymerization of ethylene glycol, diethylene glycol, and glycerol.
In some preferred embodiments of the invention, the kind of the polymeric polyol in the mineral powder grinding aid is more than or equal to 2.
The polymeric polyol contains more alcoholic hydroxyl groups, so that the polymeric polyol can be adsorbed on the surface of slag in the grinding process of mineral powder to generate electrostatic repulsion, thereby generating better grinding-assisting effect on the grinding of the slag, obtaining the mineral powder with smaller particle size (stronger activity), improving the grinding efficiency of the mineral powder and reducing the production cost of the mineral powder.
In some embodiments of the invention, the raw material for preparing the mineral powder grinding aid further comprises at least one of a polycarboxylic acid water reducing agent and a compound alcohol amine.
In some embodiments of the present invention, the polycarboxylic acid water reducing agent is added in an amount of 3 to 5 parts by weight.
The polycarboxylate superplasticizer can cooperate with the composite alcohol amine to reduce the crushing difficulty of slag and obtain mineral powder with smaller granularity and higher activity;
in addition, the polycarboxylate superplasticizer has a large number of carboxyl groups (-COOH), so that the adsorption capacity of the mineral powder grinding aid to slag particles can be improved, the electrostatic repulsion among the slag particles is further improved, the generated small-particle mineral powder is prevented from re-agglomerating, and the crushing efficiency is improved;
the polycarboxylate superplasticizer can also reduce the water demand of the obtained mineral powder in the hydration process, enhance the early activity of the mineral powder, and has the grinding capacity and the activity enhancement effect.
In some embodiments of the present invention, the amount of the complex alcohol amine added is 18 to 20 parts by weight.
In some embodiments of the invention, the triethanolamine complex is at least one of a modified diethanolamine and a modified triethanolamine.
In some embodiments of the present invention, the modified diethanolamine and modified triethanolamine have a modifying group that is an epoxy group.
In some embodiments of the present invention, the modifier is at least one of ethylene oxide and propylene oxide in the modified diethanolamine and triethanolamine.
The composite alcohol amine contains abundant alcoholic hydroxyl and amine groups, so that the composite alcohol amine can be adsorbed on the surface of slag particles, the hardness of the slag particles is reduced, the brittleness of the slag particles is improved, the crushing difficulty of the slag particles is reduced, the grinding efficiency is increased, and the activity of the obtained mineral powder is improved;
the composite alcohol amine mainly comprises at least one of diethanol amine and triethanol amine, wherein the alcohol amine is a better complexing agent, and the obtained mineral powder can be mixed with Ca in an alkaline solution in the hydration process2+、Al3+The plasma forms stable complex ions, and further the complex ions can react with hydration products of the obtained mineral powder to generate complex salt with low solubility, so that the complex salt has a good catalytic effect on the activity excitation of the mineral powder.
In some embodiments of the invention, the raw material for preparing the mineral powder grinding aid further comprises water.
In some embodiments of the present invention, the water is added in an amount of 45 to 50 parts by weight.
According to another aspect of the invention, the preparation method of the mineral powder grinding aid comprises the steps of sequentially dissolving the sulfate, the aluminate, the itaconic acid and the alkali metal hydroxide in water and then stirring.
In some embodiments of the invention, the preparation process further comprises dissolving the polymeric polyol between the aluminate and itaconic acid.
In some embodiments of the invention, the method of preparing further comprises dissolving the polycarboxylate water reducer between the itaconic acid and the alkali metal oxide.
In some embodiments of the invention, the preparation method further comprises dissolving the complex alcohol amine after the alkali metal oxide.
In some embodiments of the invention, in the preparation method, the stirring time is 15-30 min.
In some embodiments of the invention, the stirring time in the preparation method is about 20 min.
In some embodiments of the invention, in the preparation method, the former raw material is required to be completely dissolved, and then the latter raw material is added, so that the influence of the incompletely dissolved precipitate on the effect of the obtained mineral powder grinding aid is avoided.
In the preparation method, the preparation raw materials are added in sequence, and the solubility is increased from low to high, so that the preparation time is saved, and the preparation speed of the sample is improved.
In some embodiments of the present invention, the preparation method further comprises a closed storage after the stirring, so as to ensure that the solid content and the total quality of the product are not changed.
According to another aspect of the invention, the invention provides an application of the mineral powder grinding aid in preparation of mineral powder.
In some embodiments of the invention, the raw material for producing the ore powder is slag.
In some embodiments of the invention, the mineral fines are ground from the slag using a grinding aid.
In some embodiments of the invention, the mineral phase constituents of the slag include anorthite, gehlenite, and dicalcium silicate.
In some embodiments of the invention, the chemical composition of the slag includes CaO, SiO2And A2O3。
Detailed Description
The concept and technical effects of the present invention will be clearly and completely described below in conjunction with the embodiments to fully understand the objects, features and effects of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and those skilled in the art can obtain other embodiments without inventive effort based on the embodiments of the present invention, and all embodiments are within the protection scope of the present invention.
Example 1
The embodiment provides a mineral powder grinding aid, and the specific formula is shown in table 1, and the specific preparation method comprises the steps of sequentially dissolving sodium sulfate, sodium aluminate, polymeric polyol, itaconic acid, polycarboxylic acid water reducer, NaOH and alcohol amine complex into water at normal temperature and normal pressure, and then continuously stirring for 20 min; in the dissolving process, the former raw material is added after being completely dissolved.
In the embodiment, the polycarboxylate superplasticizer is produced by rock building materials science and technology limited in south of lake and has the model number of HL-700;
the composite alcohol amine is a mixture of ethylene oxide modified diethanol amine and ethylene oxide modified triethanol amine, and the composition proportion is 1: 1;
the polymeric polyol is ethylene glycol, diethylene glycol and glycerol according to the weight ratio of 1: 1: 2, and polymerizing.
TABLE 1 formulation of mineral powder grinding aid in the specific embodiment
Examples 2 to 4 and comparative examples 1 to 4 respectively provide a mineral powder grinding aid, which is different from example 1 in the raw material ratio, and the specific ratio is shown in table 1.
Test examples
The performance of the mineral powder grinding aid prepared in the example and the comparative example is tested in the experimental example. The specific test method comprises the following steps:
a5 kg experimental ball mill is adopted, 2.5g of the mineral powder grinding aid obtained in the specific implementation mode is added into 5kg of slag material (the adding amount is 0.05 wt%), powder is placed in the ball mill for 35min to obtain mineral powder required by the experiment, and then physical properties of the mineral powder obtained in different groups, including fineness, specific surface area and activity index, are detected.
Meanwhile, a blank case is set, namely, the mineral powder is directly ground without adding a mineral powder grinding aid.
Wherein, the fineness test is as follows: a 45-micron fineness sieve is adopted to test the residue rate (the ratio of the residue weight to the total weight) of the ore powder;
specific surface area test: according to GB/T8074 + 2008 'determination method of specific surface area of cement';
and (3) activity index determination:
according to GB/T18046-;
the calculation formula of the 3d activity index of the mineral powder is as follows: a3 ═ R3 × 100/R03; in the formula: a3-mineral powder 3d activity index; r3 — experimental sample 3d compressive strength; r03 — comparative sample 3d compressive strength;
the calculation formula of the 7d activity index of the mineral powder is as follows: a7 ═ R7 × 100/R07; in the formula: a7-activity index of mineral powder 7 d; r7 — experimental sample 7d compressive strength; r07 — compressive strength of comparative sample 7 d;
the calculation method of the mineral powder 28d activity index comprises the following steps: a28 ═ R28 × 100/R028; in the formula: a28-mineral powder 28d activity index; r28 — experimental sample 28d compressive strength; r028-compressive strength of comparative sample 28 d.
In the activity index determination, a comparative sample is PO42.5 cement which meets the specification of GB/T17671, and an experimental sample is prepared by mixing the comparative cement and mineral powder according to the weight ratio of 1: 1, mixing the components in a mass ratio; the test is carried out under the GB/T17671 rule, and the compressive strength of corresponding samples at different ages is obtained.
The test results of the respective properties are shown in table 2.
TABLE 2 Properties of the mineral powder obtained with the aid of mineral powder grinding aids obtained in different embodiments
The results in Table 2 show that the mineral powder grinding aid provided by the invention not only can obviously reduce the residue rate of mineral powder and increase the specific surface area, but also can increase the activity indexes of 3 days, 7 days and 28 days. The mineral powder grinding aid provided by the invention can increase the grinding efficiency, excite the activity of mineral powder and improve the compressive strength of the mineral powder in the grinding process of slag. Meanwhile, example 4, among which the effects are the best.
As can be seen from the test results of example 4 and comparative examples 1-2, the grinding aid performance and the activation performance of the sample on slag were significantly reduced when a single salt was used, because: the sulfate and aluminate are ionized into sulfate ions, aluminate ions and corresponding cations when meeting water, and can react with alumina, calcium oxide and the like in the liquid phase of a slag system to generate hydrated calcium sulfoaluminate in an alkaline environment, so that the hydrated products are increased, and the strength is improved. The combined sulfate and aluminate can effectively enhance the activity excitation effect of the slag.
As can be seen from the results of example 4 and comparative example 3, the lack of the polycarboxylate superplasticizer also reduces the grinding efficiency and activation effect of the slag, because the polycarboxylate superplasticizer, which has a large number of carboxyl groups (-COOH) on the macromolecular chain, can adsorb the surface of the slag, can improve the adsorption capacity of the grinding aid and the electrostatic repulsion between mineral powder particles, and enhances the physical grinding process between the slag. Meanwhile, after the carboxyl is attached to the mineral powder particles, the hydrophilicity of the mineral powder can be enhanced, the process that water molecules invade the mineral powder is accelerated, the hydration process of the mineral powder is accelerated, and the activity is stimulated to increase. Therefore, the using effect of the mineral powder grinding aid is improved from two aspects of physical grinding and chemical excitation.
The embodiments of the present invention have been described in detail, but the present invention is not limited to the embodiments, and various changes can be made without departing from the gist of the present invention within the knowledge of those skilled in the art. Furthermore, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.
Claims (10)
1. The mineral powder grinding aid is characterized in that raw materials for preparation comprise: sulfates, aluminates, alkali metal hydroxides, and itaconic acid.
2. The mineral powder grinding aid of claim 1, wherein the sulfate comprises at least one of sodium sulfate and potassium sulfate in parts by weight; preferably, the addition amount of the sulfate is 6-8 parts; preferably, the aluminate includes at least one of sodium aluminate and potassium aluminate; preferably, the addition amount of the aluminate is 8-10 parts; preferably, the addition amount of the alkali metal hydroxide is 2-3 parts; preferably, the addition amount of the itaconic acid is 2-3 parts; preferably, the alkali metal hydroxide includes at least one of sodium hydroxide and potassium hydroxide.
3. The mineral powder grinding aid of claim 1, wherein the raw materials for the preparation of the mineral powder grinding aid further comprise a polymeric polyol; preferably, the addition amount of the polymeric polyol is 7 to 9 parts by weight.
4. The mineral powder grinding aid of claim 3, wherein the number of hydroxyl groups per monomer of the polymeric polyol is not less than 2; preferably, the monomer of the polymeric polyol is at least one of ethylene glycol, diethylene glycol and glycerol.
5. The mineral powder grinding aid of claim 1, wherein the raw materials for the preparation of the mineral powder grinding aid further comprise at least one of a polycarboxylic acid water reducing agent and a hydramine complex.
6. The mineral powder grinding aid as claimed in claim 5, wherein the polycarboxylate water reducer is added in an amount of 3-5 parts by weight.
7. The mineral powder grinding aid as claimed in claim 5, wherein the amount of the composite alcohol amine added is 18 to 20 parts by weight; preferably, the hydramine complex is at least one of modified diethanolamine and modified triethanolamine.
8. The mineral powder grinding aid as claimed in claim 1, wherein raw materials for preparing the mineral powder grinding aid further comprise water, and the addition amount of the water is 45-50 parts by weight.
9. The preparation method of the mineral powder grinding aid as defined in any one of claims 1 to 8, wherein the preparation method comprises sequentially dissolving the sulfate, the aluminate, the itaconic acid and the alkali metal hydroxide in water and stirring.
10. The application of the mineral powder grinding aid as defined in any one of claims 1 to 8 in preparation of mineral powder.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115650622A (en) * | 2022-11-10 | 2023-01-31 | 山东众森科技股份有限公司 | Grinding-aid exciting agent for solid waste material and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014067991A1 (en) * | 2012-11-05 | 2014-05-08 | Sika Technology Ag | Milling aid for cement clinker based on polycarboxylate ethers and/or lignosulphonates |
| CN105036588A (en) * | 2015-07-23 | 2015-11-11 | 柳州博泽科技有限公司 | Cement grinding aid enabling a large amount of limestone to be doped and preparing method of cement grinding aid |
| CN105084802A (en) * | 2015-07-31 | 2015-11-25 | 武汉理工大学 | High-limestone-flour-adulterate-amount composite enhanced grinding aid for cement and preparation method of high-limestone flour-adulterate amount composite enhanced grinding aid |
| CN105753359A (en) * | 2016-02-26 | 2016-07-13 | 中钢集团马鞍山矿山研究院有限公司 | Grinding aid for preparing cementing material for filling and dry stacking of mines |
-
2021
- 2021-09-09 CN CN202111058265.3A patent/CN113831051B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014067991A1 (en) * | 2012-11-05 | 2014-05-08 | Sika Technology Ag | Milling aid for cement clinker based on polycarboxylate ethers and/or lignosulphonates |
| CN105036588A (en) * | 2015-07-23 | 2015-11-11 | 柳州博泽科技有限公司 | Cement grinding aid enabling a large amount of limestone to be doped and preparing method of cement grinding aid |
| CN105084802A (en) * | 2015-07-31 | 2015-11-25 | 武汉理工大学 | High-limestone-flour-adulterate-amount composite enhanced grinding aid for cement and preparation method of high-limestone flour-adulterate amount composite enhanced grinding aid |
| CN105753359A (en) * | 2016-02-26 | 2016-07-13 | 中钢集团马鞍山矿山研究院有限公司 | Grinding aid for preparing cementing material for filling and dry stacking of mines |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115650622A (en) * | 2022-11-10 | 2023-01-31 | 山东众森科技股份有限公司 | Grinding-aid exciting agent for solid waste material and preparation method thereof |
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