CN101823853A - Method for preparing magnetization based surfactant and application - Google Patents
Method for preparing magnetization based surfactant and application Download PDFInfo
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- CN101823853A CN101823853A CN 201010123663 CN201010123663A CN101823853A CN 101823853 A CN101823853 A CN 101823853A CN 201010123663 CN201010123663 CN 201010123663 CN 201010123663 A CN201010123663 A CN 201010123663A CN 101823853 A CN101823853 A CN 101823853A
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- cement
- based surfactant
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- magnetization based
- portland
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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
-
- 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
- C04B2103/40—Surface-active agents, dispersants
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00017—Aspects relating to the protection of the environment
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
- C04B2111/00422—Magnetic properties
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/10—Compositions or ingredients thereof characterised by the absence or the very low content of a specific material
- C04B2111/1087—Carbon free or very low carbon content fly ashes; Fly ashes treated to reduce their carbon content or the effect thereof
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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 method for preparing a magnetization based surfactant and application. The method comprises the following steps of: (1) isomer combination, namely uniformly combining more than three or less than six of triethanolamine, sodium sulfate, ethylene diamine tetraacetic acid, sulfite yeast distiller wort, calcium dodecy and sodium oxalate; and (2) magnetization, namely magnetizing the isomer by using a permanent magnetic field to obtain the magnetization based surfactant. The method is simple and has convenient operation. The surfactant is used for producing conventional portland cement, portland slag cement, portland fly ash cement, portland-pozzolan cement and composite portland cement to effectively consume industrial waste residue, volcanic ash and other mixed materials, reduce environmental pollution, effectively solve the problems that doping of the mixed materials causes early-strength reduction, hardening slowdown, label reduction and the like of the cement, greatly improve yield and performance of the cement, reduce consumption of energy and resources, and provide powerful technical guarantee for low-carbon cement production.
Description
Technical field
The invention belongs to material of construction cement additire class technical field, be specifically related to a kind of preparation method of magnetization based surfactant, relate to the application of this tensio-active agent simultaneously.Magnetization based surfactant by present method preparation is a kind of manufacture of cement liquid additive, also relate to the application of this magnetization based surfactant in manufacture of cement simultaneously, this magnetization based surfactant is applicable to produces ordinary Portland cement, Portland blast, Portland fly ash cement, portland-pozzolan cement, composite Portland cement etc.
Background technology
Tensio-active agent is a kind ofly to add in cement pulverizing course, improves the active material of cement performance.Be characterized in that volume is few, effect is big, so there is the people to liken it in the food seasoning, person is also arranged, and it can play " art is good for strength ".The application of various tensio-active agents has improved many performances of cement; promoted the development of cement new technology; promote the application of industry byproduct in the gelling material system, also helped to economize on resources and environment protection, progressively become requisite the 5th component of high grade cement.Tensio-active agent can reduce the work-ing life of the water consumption of cement, the performance of improving cement, raising strength of cement, the consumption that reduces grog in the cement, prolongation cement significantly, improving and produce unit-hour output or the like, is the significant product that shows a national cement technology level.
The cement surfactant in the whole world can be divided into three major types: grinding aid, quality improving agent and functional additive.
Used for many years based on the grinding aid that improves grinding efficiency, its purpose is the unit-hour output that increases grinding machine, reduces energy consumption; And quality improving agent can not only improve mill hourly output, can also improve cement quality simultaneously, therefore is widely used in recent years; As for functional additive is purpose-designed, for example produces that masonry cement is used or removes chrome additive or the like.
Because the diversity of cement production process and chemical constitution, use different and different that the economic benefit of cement surfactant can be because of their location and cement production enterprise.Cement production enterprise will be determined a preferred plan according to the moiety of additive and the difference of required dosage thereof when using additive.Use cement surfactant, the variety of issue that may occur in the manufacture of cement that requires careful consideration, and emphasis should be placed in the cement pulverizing course, consider and how utilize multiple index to examine its influence to cement performance.
The tradition cement surfactant, as grinding aid, what mainly consider is under the certain fineness condition, reduces the cement grinding power consumption, increases mill hourly output, reduces working time and improve cement handling and storage characteristics etc.The cement major part is produced by ball mill, the mechanism of grinding aid is exactly to act on ball mill to reduce the magnetism between the cement granules, thereby the paste ball phenomenon by reducing the reunion of grinding machine internal particle and therefore producing improves grinding efficiency, improves the efficient of powder separating machine in the closed-circuit system and the interstitial rate of minimizing grinding machine.Grinding aid also can act in other grinder systems, comprises Vertical Mill, roll squeezer and various horizontal grinding machine etc., and it can effectively reduce the vibration of grinding machine, reduces maintenance time and production cost.
Quality improving agent, this is just made referrals to product on the market by developed country as far back as the seventies in last century, and purpose is that extra benefit is provided on the basis of grinding aid.This additive can improve the various characteristics of cement, as reducing water requirement, acceleration or postponing cement setting time, change concrete or each age strength of mortar or the like.The raising of quality can make the price of cement or the also corresponding raising of rank of cement, brings more material benefit also for simultaneously the concrete use in downstream.But selecting additive for use mainly is to be used for reducing the manufacture of cement cost, therefore, allows to have under same intensity rank situation higher " grog substitutes ", or use other at a low price materials increase the handiness of grog chemical constitution, to bring extra economic benefit.For example, in cement, increase the use that blended material not only can reduce grog, also can reduce the CO2 emissions of cement; In Europe,, grog mixed material in cement can from European Union's carbon emission power transaction, (EU-ETS) obtain more economic interests owing to substituting the Carbon emission that reduces.
The starting of China's tensio-active agent begins one's study and uses sulfonated lignin and grinding aid more a little later the 1950's, but because the restriction of prevailing condition, in quite long subsequently period, slower development.After 1970, the research of admixture and production are just developed.The particularly establishment in succession of the eighties in 20th century China tensio-active agent association and branch, good construction market after in addition reforming and opening up to the outside world, promoted the fast development of scientific research, production and the application of tensio-active agent, the ratio that the cement amount of use admixture accounts for the cement total amount rises to nearly 40% from 5%.
The tensio-active agent industry is a Chaoyang industry, it is big rising industry, China still is in the large-scaled construction period, during a large amount of priority projects is being carried out and is planned-and subways of big and medium-sized cities, Civil Aviation Airport, high-speed railway net, southwestern construction of hydropower facilities etc.As starting material important in the cement, tensio-active agent also has very big development space.At present, China keeps the continuity and the stability of macro economic policy just in all-round construction harmonious society, widelys popularize green, energy saving building, these all provide favourable outside atmosphere and the opportune moment for the fast development of admixture industry, and the admixture industry has more vast market prospect.
Under the guidance and care of country about ministries and commissions and the leader of higher level federation, strive through nearly 30 years making a concerted effort, present China tensio-active agent great variety of goods, product performance improve constantly, output occupies first of the whole world, speed increment with average annual 10%, the needs of capital construction rapid growth such as China railways, highway, airport, colliery, public works, Nuclear power plants, dam have in recent years been satisfied, in priority projects such as Three Gorges Projects, Qinghai-Tibet Railway, Construction of Hangzhou Bay Cross-sea Bridge,, all used the fine tensio-active agent because of cement performance is had higher requirements.
Select which kind of cement surfactant, depend primarily on of the influence of the equivalent material of grog cement performance.For instance, slag and flyash mainly are influential to cement early strength and time of coagulation, can shorten the time of setting usually after adding additive, improve cement early strength; And in ordinary Portland cement, add additive, then can increase by 28 days later strengths; In addition, also have some blended materials to reduce water consumption with additive.
Summary of the invention
An object of the present invention is to be to provide a kind of preparation method of magnetization based surfactant, easy to implement the method, easy and simple to handle; Starting material are ubiquity on market, buys easily, stores and transportation; Preparation equipment does not have particular requirement except that magneticflux-density, be easy to design and manufacturing.
Another object of the present invention is to be to provide this magnetization based surfactant at ordinary Portland cement, Portland blast, Portland fly ash cement, portland-pozzolan cement, application during composite Portland cement etc. are produced, industrial residue (the slag of having dissolved effectively, flyash), volcanic ash, alleviate its pollution to environment, solved effectively and mixed slag, flyash, blended materials such as volcanic ash make the early strong reduction of cement usually, it is slack-off to harden, degradation problem under the label, the output and the performance of cement have greatly been improved, reduce the consumption of the energy and resource, the policy that meets national energy-saving and emission-reduction provides strong technical guarantee for producing low-carbon (LC) cement.
To achieve the above object, the present invention adopts following technical measures:
A kind of preparation method of magnetization based surfactant, be a kind of preparation method who is used for the admixture of cement, with the high molecular polymer is raw material, through combination, magnetization preparation technology, make a kind ofly be used to increase mill output, reduce a ton cement power consumption, reduce the repair and maintenance expense, improve cement performance, improve blended material utilization ratio, reduce the magnetization based surfactant of carrying cost, increasing the aspects such as profit of cement manufacturing concern.Described high molecular polymer is: trolamine (TEA) ((CH
2CH
2OH)
3N), sodium sulfate (Na
2SO
4), disodium ethylene diamine tetraacetate (C
10H
14N
2O
3Na
22H
2O), sulphite yeast distiller's wort, dodecylbenzene semi-annular jade pendant acid calcium, sodium oxalate etc. are six kinds.The steps include:
(1) isomer combination: by trolamine (TEA) ((CH
2CH
2OH)
3N), sodium sulfate (Na
2SO
4), disodium ethylene diamine tetraacetate (C
10H
14N
2O
3Na
22H
2O), in sulphite yeast distiller's wort, dodecylbenzene semi-annular jade pendant acid calcium, the sodium oxalate more than three kinds or six kinds of isomer that following combinations of substances forms; More than used starting material be with more than three kinds or the uniform mixing of material arbitrary proportion below six kinds form.Concrete prescription is:
| Raw material | The weight part of each component |
| Trolamine disodium ethylene diamine tetraacetate sulphite yeast distiller's wort | ??1～98??1～98??1～98 |
| Trolamine sodium sulfate disodium ethylene diamine tetraacetate dodecylbenzene semi-annular jade pendant acid calcium | ??1～97??1～97??1～97??1～97 |
| Trolamine disodium ethylene diamine tetraacetate sulphite yeast distiller's wort dodecylbenzene semi-annular jade pendant acid calcium sodium oxalate | ??1～96??1～96??1～96??1～96??1～96 |
| Trolamine sodium sulfate disodium ethylene diamine tetraacetate sulphite yeast distiller's wort dodecylbenzene semi-annular jade pendant acid calcium sodium oxalate | ??1～95??1～95??1～95??1～95??1～95??1～95 |
(2) magnetization: the magnetic field magnetisation through magneticflux-density B=0.50～1.00T obtains active very strong magnetization based surfactant after 80～160 minutes.Detailed process is: the liquid form mixt that combination finishes at the uniform velocity enters special-purpose magnetizing apparatus, through 80～160 minutes magnetization, promptly obtains magnetization based surfactant.Used magnet is Nd-Fe-B permanent magnet.Its surperficial magnetic force of ndfeb magnet that test is this time adopted is about 0.70T.The tensio-active agent that makes is various isomer mixtures, and effect is a polybasic.
The application of a kind of magnetization based surfactant in producing ordinary Portland cement, Portland blast, Portland fly ash cement, portland-pozzolan cement, composite Portland cement, its process is: liquid magnetization based surfactant is through directly adding in the ball mill behind the batching metering, with the starting material combined grinding of producing cement, to obtain satisfactory cement products.Mix tensio-active agent weight be 0.3 ‰ of gross weight.
1., blended materials such as softening slag, flyash, volcanic ash the present invention adopts the mechanism of magnetization based activator to be:, make that vitreum produces more defects in the blended material, have super-active; 2., depolymerization C
2The S mineral; 3., make C
3The S mineral crack stress corrosion, promote crack propagation, to weaken cohesive strength.Simultaneously, delay C
3The S hydration can be quickened C greatly
3A, C
4The hydration rate of AF utilizes gypsum can make C
3A, C
4The easier formation ettringite of AF forms finer and close water mudrock structure, and strength of cement significantly improves.
The present invention has the following advantages and effect:
(1) magnetization based surfactant can promote the mill efficiency of blended material such as slag, flyash, volcanic ash and grog in cement pulverizing course, increases the flowability of material in milling equipment, improves the dispersion efficiency of grinding efficiency and powder, improves output.
(2) activity of tensio-active agent after magnetization greatly, when itself and cement carry out hydration reaction, impel water molecules to enter granule interior by cement particle surface with comparalive ease, quickened the hydration reaction of cement (ordinary Portland cement, Portland blast, Portland fly ash cement, portland-pozzolan cement, composite Portland cement).Magnetization based surfactant is all influential to the aquation and the process of setting of cement, thereby has improved the activity and the performance of cement.By analysis, magnetic field has changed the molecular structure of tensio-active agent to the magnetization of tensio-active agent, has improved the activity of tensio-active agent, so that improve cement intensity.Use the cement stone of magnetization based surfactant, compact structure, microfissure is little, and density of texture is big, and has secondary mineral to produce, thus intensity improves.
(3) magnetization based surfactant uses the aquation that has promoted cement, and obvious variation has also taken place the pattern of its hydrated product.Because the change of hydrated cementitious product microtexture, cement intensity is significantly improved, and especially later strength is greatly improved, thereby provides foundation for the application of industrial residue (slag, flyash), the high volume cement of volcanic ash.
(4) cement that has magnetization based surfactant mainly adopts the magnetization based surfactant of industrial residue (slag, flyash), volcanic ash, grog, gypsum and trace to form.Slag quality coefficient wherein
Must not be less than 1.2.The two all is as activity excitant for grog and gypsum, blended materials such as slag, flyash, volcanic ash are played the dual excitation of alkalescence, vitriol, this is because produce hydrated calcium silicate after the grog aquation, discharge simultaneously a large amount of calcium hydroxides again, and Calucium Silicate powder and gypsum in the middle of them can be combined into crystalchecked.It is higher to generate intensity
And tensio-active agent plays blended materials such as activation slag, flyash, volcanic ash, stops C
2S, C
3The too early aquation of S plays strong effect in later strength.The volume of tensio-active agent adapts to and will inevitably quicken the activity performance of blended materials such as slag, flyash, volcanic ash, improves cement intensity.One of obvious effective way is: do not improve or delay C
3S, C
2The hydration rate of S and accelerate C as far as possible
3A, C
4The hydration rate of AF is at C
3A and C
4After AF forms ettringite, form the empty skeleton of needle-like, netted product, C
3S continues aquation again, makes the cement structures densification, cross the high-stability adverse consequences to eliminate f-CaO, thereby intensity is improved.
(5) cement that uses magnetization based surfactant to produce, blended material consumptions such as slag, flyash, volcanic ash are big, and the grog consumption is few, and production cost is low, and economic benefit is huge and technology is simple, and is easy to control, adapts to very much large-scale industry production.
Embodiment
A kind of preparation method of magnetization based surfactant the steps include:
(1) isomer combination: by trolamine (TEA) ((CH
2CH
2OH)
3N), sodium sulfate (Na
2SO
4), disodium ethylene diamine tetraacetate (C
10H
14N
2O
3Na
22H
2O), in sulphite yeast distiller's wort, dodecylbenzene semi-annular jade pendant acid calcium, the sodium oxalate more than three kinds or six kinds of isomer that following combinations of substances forms; More than used starting material be with more than three kinds or the uniform mixing of material arbitrary proportion below six kinds form.Concrete prescription is:
| Raw material | The weight part of each component |
| Trolamine disodium ethylene diamine tetraacetate sulphite yeast distiller's wort | ??96??1??2 |
| Trolamine sodium sulfate disodium ethylene diamine tetraacetate dodecylbenzene semi-annular jade pendant acid calcium | ??10??55??30??5 |
| Trolamine disodium ethylene diamine tetraacetate sulphite yeast distiller's wort dodecylbenzene semi-annular jade pendant acid calcium sodium oxalate | ??25??15??20??14??26 |
| Trolamine sodium sulfate disodium ethylene diamine tetraacetate sulphite yeast distiller's wort dodecylbenzene semi-annular jade pendant acid calcium sodium oxalate | ??10??14??22??24??4??26 |
(2) magnetization: the magnetic field magnetisation through magneticflux-density B=0.50～1.00T obtains active very strong magnetization based surfactant after 80～160 minutes.Detailed process is: the liquid form mixt that combination finishes at the uniform velocity enters special-purpose magnetizing apparatus, through 80～160 minutes magnetization, promptly obtains magnetization based surfactant.Used magnet is Nd-Fe-B permanent magnet.Its surperficial magnetic force of ndfeb magnet that test is this time adopted is about 0.70T.The tensio-active agent that makes is various isomer mixtures, and effect is a polybasic.
The application of a kind of magnetization based surfactant in producing ordinary Portland cement, Portland blast, Portland fly ash cement, portland-pozzolan cement, composite Portland cement, its process is: liquid magnetization based surfactant is through directly adding in the ball mill behind the batching metering, with the starting material combined grinding of producing cement, to obtain satisfactory cement products.Mix tensio-active agent weight be 0.3 ‰ of gross weight.
Illustrate:
1. produce 1 ton of ordinary Portland cement and add 0.3 kilogram of magnetization based surfactant;
2. produce 1 ton of Portland blast and add 0.3 kilogram of magnetization based surfactant;
3. produce 1 ton of Portland fly ash cement and add 0.3 kilogram of magnetization based surfactant;
4. produce 1 ton of portland-pozzolan cement and add 0.3 kilogram of magnetization based surfactant;
5. produce 1 ton of composite Portland cement and add 0.3 kilogram of magnetization based surfactant.
Claims (10)
1. the preparation method of a magnetization based surfactant the steps include:
(1) isomer combination: by in trolamine, sodium sulfate, disodium ethylene diamine tetraacetate, sulphite yeast distiller's wort, dodecylbenzene semi-annular jade pendant acid calcium, the sodium oxalate more than three kinds or six kinds of isomer that following combinations of substances forms, used starting material be with more than three kinds or the uniform mixing of material arbitrary proportion below six kinds form;
(2) magnetization: the magnetic field magnetisation through magneticflux-density B=0.50～1.00T obtains active very strong magnetization based surfactant after 80～160 minutes;
Used magnet is Nd-Fe-B permanent magnet, and its surperficial magnetic force of the ndfeb magnet that is adopted is 0.70T.
2. a kind of magnetization based surfactant according to claim 1 is characterized in that it is made by following parts by weight of raw materials:
Parts by weight of raw materials
Trolamine 1～98
Disodium ethylene diamine tetraacetate 1～98
Sulphite yeast distiller's wort 1～98.
3. a kind of magnetization based surfactant according to claim 1 is characterized in that it is made by following parts by weight of raw materials:
Parts by weight of raw materials
Trolamine 1～97
Sodium sulfate 1～97
Disodium ethylene diamine tetraacetate 1～97
Dodecylbenzene semi-annular jade pendant acid calcium 1～97.
4. a kind of magnetization based surfactant according to claim 1 is characterized in that it is made by following parts by weight of raw materials:
Parts by weight of raw materials
Trolamine 1～96
Disodium ethylene diamine tetraacetate 1～96
Sulphite yeast distiller's wort 1～96
Dodecylbenzene semi-annular jade pendant acid calcium 1～96
Sodium oxalate 1～96.
5. a kind of magnetization based surfactant according to claim 1 is characterized in that it is made by following parts by weight of raw materials:
Parts by weight of raw materials
Trolamine 1～95
Sodium sulfate 1～95
Disodium ethylene diamine tetraacetate 1～95
Sulphite yeast distiller's wort 1～95
Dodecylbenzene semi-annular jade pendant acid calcium 1～95
Sodium oxalate 1～95.
6. the application of the described a kind of magnetization based surfactant of claim 1 in producing ordinary Portland cement.
7. the application of the described a kind of magnetization based surfactant of claim 1 in the operating mine slag portland cement.
8. the application of the described a kind of magnetization based surfactant of claim 1 in producing Portland fly ash cement.
9. the application of the described a kind of magnetization based surfactant of claim 1 in producing portland-pozzolan cement.
10. the application of the described a kind of magnetization based surfactant of claim 1 in producing composite Portland cement.
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|---|---|---|---|
| CN2010101236634A CN101823853B (en) | 2010-03-10 | 2010-03-10 | Method for preparing magnetization based surfactant and application |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101236634A CN101823853B (en) | 2010-03-10 | 2010-03-10 | Method for preparing magnetization based surfactant and application |
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| Publication Number | Publication Date |
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| CN101823853B CN101823853B (en) | 2011-11-30 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102424536A (en) * | 2011-09-15 | 2012-04-25 | 湖北工业大学 | Preparation method of cement raw meal grinding activator |
| CN102951864A (en) * | 2011-08-25 | 2013-03-06 | 济南润杰建材科技有限公司 | Cement grinding aid and cement containing same |
| CN115974487A (en) * | 2022-12-29 | 2023-04-18 | 四川省川铁枕梁工程有限公司 | Ultrahigh-performance concrete and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1063273A (en) * | 1992-03-12 | 1992-08-05 | 魏立文 | Colorful quartz sands and surperficial colored glaze technology thereof |
| CN1907546A (en) * | 2005-08-05 | 2007-02-07 | 上海沪正纳米科技有限公司 | Nano silver-group formaldehyde eradicating-liquid and preparation method thereof |
| CN101225233A (en) * | 2008-01-31 | 2008-07-23 | 中山大学 | Ethyl silicon oil based magnetic liquid and preparation method thereof |
-
2010
- 2010-03-10 CN CN2010101236634A patent/CN101823853B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1063273A (en) * | 1992-03-12 | 1992-08-05 | 魏立文 | Colorful quartz sands and surperficial colored glaze technology thereof |
| CN1907546A (en) * | 2005-08-05 | 2007-02-07 | 上海沪正纳米科技有限公司 | Nano silver-group formaldehyde eradicating-liquid and preparation method thereof |
| CN101225233A (en) * | 2008-01-31 | 2008-07-23 | 中山大学 | Ethyl silicon oil based magnetic liquid and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102951864A (en) * | 2011-08-25 | 2013-03-06 | 济南润杰建材科技有限公司 | Cement grinding aid and cement containing same |
| CN102424536A (en) * | 2011-09-15 | 2012-04-25 | 湖北工业大学 | Preparation method of cement raw meal grinding activator |
| CN115974487A (en) * | 2022-12-29 | 2023-04-18 | 四川省川铁枕梁工程有限公司 | Ultrahigh-performance concrete and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN101823853B (en) | 2011-11-30 |
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