CN116444190A - Large-doping limestone cement carbon reduction auxiliary agent and preparation method thereof - Google Patents
Large-doping limestone cement carbon reduction auxiliary agent and preparation method thereof Download PDFInfo
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- CN116444190A CN116444190A CN202310284308.2A CN202310284308A CN116444190A CN 116444190 A CN116444190 A CN 116444190A CN 202310284308 A CN202310284308 A CN 202310284308A CN 116444190 A CN116444190 A CN 116444190A
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- Prior art keywords
- auxiliary agent
- carbon reduction
- limestone
- reduction auxiliary
- doping
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- 239000004568 cement Substances 0.000 title claims abstract description 54
- 235000019738 Limestone Nutrition 0.000 title claims abstract description 36
- 239000006028 limestone Substances 0.000 title claims abstract description 36
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 239000012752 auxiliary agent Substances 0.000 title claims abstract description 25
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 25
- 230000009467 reduction Effects 0.000 title claims abstract description 25
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- -1 alcohol amine Chemical class 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000002270 dispersing agent Substances 0.000 claims abstract description 11
- 239000000126 substance Substances 0.000 claims abstract description 8
- 239000000701 coagulant Substances 0.000 claims abstract description 7
- SLINHMUFWFWBMU-UHFFFAOYSA-N Triisopropanolamine Chemical compound CC(O)CN(CC(C)O)CC(C)O SLINHMUFWFWBMU-UHFFFAOYSA-N 0.000 claims description 12
- HXKKHQJGJAFBHI-UHFFFAOYSA-N 1-aminopropan-2-ol Chemical compound CC(O)CN HXKKHQJGJAFBHI-UHFFFAOYSA-N 0.000 claims description 8
- LZZYPRNAOMGNLH-UHFFFAOYSA-M Cetrimonium bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 claims description 8
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 8
- ZCCIPPOKBCJFDN-UHFFFAOYSA-N calcium nitrate Chemical compound [Ca+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ZCCIPPOKBCJFDN-UHFFFAOYSA-N 0.000 claims description 8
- 239000002994 raw material Substances 0.000 claims description 7
- 239000000230 xanthan gum Substances 0.000 claims description 6
- 235000010493 xanthan gum Nutrition 0.000 claims description 6
- 229920001285 xanthan gum Polymers 0.000 claims description 6
- 229940082509 xanthan gum Drugs 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 4
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 4
- 239000001110 calcium chloride Substances 0.000 claims description 4
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 4
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 4
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 4
- 239000011780 sodium chloride Substances 0.000 claims description 4
- VGTPCRGMBIAPIM-UHFFFAOYSA-M sodium thiocyanate Chemical compound [Na+].[S-]C#N VGTPCRGMBIAPIM-UHFFFAOYSA-M 0.000 claims description 4
- 239000006185 dispersion Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- DUIOKRXOKLLURE-UHFFFAOYSA-N 2-octylphenol Chemical compound CCCCCCCCC1=CC=CC=C1O DUIOKRXOKLLURE-UHFFFAOYSA-N 0.000 claims description 2
- 229920002907 Guar gum Polymers 0.000 claims description 2
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 2
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 claims description 2
- 239000000665 guar gum Substances 0.000 claims description 2
- 235000010417 guar gum Nutrition 0.000 claims description 2
- 229960002154 guar gum Drugs 0.000 claims description 2
- RAFRTSDUWORDLA-UHFFFAOYSA-N phenyl 3-chloropropanoate Chemical compound ClCCC(=O)OC1=CC=CC=C1 RAFRTSDUWORDLA-UHFFFAOYSA-N 0.000 claims description 2
- 229920002635 polyurethane Polymers 0.000 claims description 2
- 239000004814 polyurethane Substances 0.000 claims description 2
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 2
- 235000017557 sodium bicarbonate Nutrition 0.000 claims description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 2
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 claims description 2
- 238000000227 grinding Methods 0.000 abstract description 24
- 239000000654 additive Substances 0.000 abstract 2
- 230000000996 additive effect Effects 0.000 abstract 2
- 231100000252 nontoxic Toxicity 0.000 abstract 1
- 230000003000 nontoxic effect Effects 0.000 abstract 1
- 238000002156 mixing Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 230000036571 hydration Effects 0.000 description 3
- 238000006703 hydration reaction Methods 0.000 description 3
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- LVTYICIALWPMFW-UHFFFAOYSA-N diisopropanolamine Chemical compound CC(O)CNCC(C)O LVTYICIALWPMFW-UHFFFAOYSA-N 0.000 description 2
- 229940043276 diisopropanolamine Drugs 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- CBOCVOKPQGJKKJ-UHFFFAOYSA-L Calcium formate Chemical compound [Ca+2].[O-]C=O.[O-]C=O CBOCVOKPQGJKKJ-UHFFFAOYSA-L 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229940044172 calcium formate Drugs 0.000 description 1
- 239000004281 calcium formate Substances 0.000 description 1
- 235000019255 calcium formate Nutrition 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 159000000011 group IA salts Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000000527 sonication Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 150000005846 sugar alcohols Polymers 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
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
Landscapes
- 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 high-doping limestone cement carbon reduction auxiliary agent and a preparation method thereof, which solve the technical problems that the cement grinding aid for improving the content and the performance of limestone in cement is less, and the commercial grinding aid is insufficient in improving the strength of the high-doping limestone cement (the mass fraction of limestone is more than 20%) in each age. It comprises a coagulant: 7-20%; dispersing agent: 0.02-0.4%; alcohol amine: 5-15%, and the rest is supplemented to 100% by water. The additive disclosed by the invention has stable physical and chemical properties, is nontoxic and pollution-free, can further reduce the clinker consumption by using the additive and can be replaced by equivalent limestone, so that the strength of cement at each age is obviously improved.
Description
Technical Field
The invention belongs to the technical field of cement production, and particularly relates to a high-doping limestone cement carbon reduction auxiliary agent and a preparation method thereof.
Background
Cement is an important base material, and a certain amount of cement grinding aid is generally added in the cement grinding process, and the mixing amount is generally 0.3-0.5 per mill. From the physical action perspective analysis, the effective components of the cement grinding aid can carry out surface modification on cement particles, so that the dispersibility of cement is improved, and the grinding effect is optimized. From the chemical action analysis, the dynamic process in the hydration and hardening reaction of cement can be changed by chemical components such as alcohol amine, polyalcohol and the like, the hydration degree of cement is improved, more hydration products are generated, the hardened set cement is more compact in structure, the strength of each age is improved, and the cement grinding aid plays an important role in improving the grinding effect and optimizing the cement performance. In recent years, grinding aids for limestone cements with large amounts of added amounts have been aimed at increasing cement strength and improving workability.
Patent CN 102180616A discloses a grinding aid special for high-doped limestone composite cement and a preparation method thereof, wherein the grinding aid is compounded by a plurality of components in alcohol amine, acrylic acid, sugar, calcium formate, alkaline salt, stabilizer, acetic acid and the like. The grinding aid has the effects that the mixing amount of limestone in cement is improved by about 10 percent and reaches 26 percent, and the cement strength is slightly improved.
At present, the cement grinding aid for improving the content and the performance of limestone in cement is less, and the strength of the commercial grinding aid for each age of high-doped limestone cement (the mass fraction of limestone is more than 20%) is not improved enough.
Disclosure of Invention
Aiming at the problems in the background technology, the application provides a high-doping limestone cement carbon reduction auxiliary agent and a preparation method thereof, which are common solutions with stable chemical properties, are used in a superposition way with conventional grinding aids, and aim to further improve the strength of the high-doping limestone cement in each age.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the invention provides a high-doping limestone cement carbon reduction auxiliary agent and a preparation method thereof, wherein the preparation method comprises the following raw materials in percentage by mass:
coagulant: 7-20%; dispersing agent: 0.02-0.4%; alcohol amine: 5-15%, and the rest is supplemented to 100% by water.
Further, the coagulant is any one or mixture of any several substances selected from calcium chloride, calcium nitrate, calcium nitrite, sodium chloride, sodium thiocyanate, sodium carbonate and sodium bicarbonate.
Further, the dispersing agent is any one or mixture of a plurality of substances selected from polyurethane, guar gum, xanthan gum, sodium dodecyl benzene sulfonate, octyl phenol polyoxyethylene ether and cetyl trimethyl ammonium bromide.
Further, the alcohol amine is any one or any two of triisopropanolamine, diethanol monoisopropanolamine, triethanolamine and triisopropanolamine.
The invention provides a preparation method of a high-doping limestone cement carbon reduction auxiliary agent, which specifically comprises the following steps:
adding 7-20% of coagulant, 0.02-0.4% of dispersing agent and 5-15% of alcohol amine into a beaker, adding water to 100% of the rest mass, and performing ultrasonic vibration dispersion for 3-6 hours.
Based on the technical scheme, the embodiment of the invention at least has the following technical effects:
the carbon reduction auxiliary agent for the large-doping limestone cement and the preparation method provided by the invention have the advantages of stable physical and chemical properties, no toxicity and no pollution, and the stacked grinding aid can further reduce the clinker consumption and replace the clinker consumption by equivalent limestone, so that the strength of the cement in each age is obviously improved.
Detailed Description
The following description of the technical solutions in the embodiments of the present invention will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the technical solutions should be considered that the combination does not exist and is not within the scope of protection claimed by the present invention.
The aim of the invention is realized by the following technical scheme:
1. preparation example
Comparative example:
the grinding aid is a commercial grinding aid mainly comprising conventional alcohol amine, and the mixing amount is 0.05%, and the specific amounts are shown in tables 1 and 2.
Example 1:
a large-doping limestone cement carbon reduction auxiliary agent comprises the following raw materials: 10% calcium chloride, 0.07% cetyltrimethylammonium bromide and 10% alcohol amine combination (triisopropanolamine: diethanol monoisopropanolamine=1:1), the remaining mass was made up to 100% with water.
The preparation method of the limestone cement carbon reduction auxiliary agent with large doping amount comprises the following steps: 10% of calcium chloride, 0.07% of hexadecyl trimethyl ammonium bromide and 10% of alcohol amine combination (triisopropanolamine: diethanol monoisopropanolamine=1:1) are added into a beaker, the residual mass is added with water to 100%, and ultrasonic vibration dispersion is carried out for 5 hours to obtain a product 1.
The conventional grinding aid and the blending amount of the product 1 are shown in tables 1 and 2.
Example 2:
a large-doping limestone cement carbon reduction auxiliary agent comprises the following raw materials: 10% calcium nitrate, 0.08% cetyltrimethylammonium bromide and 12% alcohol amine combination (triisopropanolamine: diethanol monoisopropanolamine=1:1), the remaining mass was made up to 100% with water.
The preparation method of the limestone cement carbon reduction auxiliary agent with large doping amount comprises the following steps: 10% calcium nitrate, 0.08% cetyl trimethylammonium bromide and 12% alcohol amine combination (triisopropanolamine: diethanol monoisopropanolamine=1:1) were added in a beaker, the remaining mass was added with water to 100%, and the product 2 was dispersed by ultrasonic vibration for 5 hours.
The amounts of conventional grinding aid and product 2 are shown in tables 1 and 2.
Example 3:
a large-doping limestone cement carbon reduction auxiliary agent comprises the following raw materials: 15% sodium thiocyanate, 0.08% dispersant combination (cetyl trimethylammonium bromide: xanthan gum=3:1) and 12% alcohol amine combination (triisopropanolamine: monoethanolamine diisopropanolamine=1:1), the remaining mass was made up to 100% with water.
The preparation method of the limestone cement carbon reduction auxiliary agent with large doping amount comprises the following steps: 15% sodium thiocyanate, 0.08% dispersant combination (cetyl trimethylammonium bromide: xanthan gum=3:1) and 12% alcohol amine combination (triisopropanolamine: monoethanolamine diisopropanolamine=1:1) were added to the beaker, the remaining mass was added with water to 100%, and the product 3 was dispersed by sonication for 5 hours.
The amounts of conventional grinding aid and product 3 are shown in tables 1 and 2.
Example 4:
a large-doping limestone cement carbon reduction auxiliary agent comprises the following raw materials: 15% sodium chloride, 0.10% dispersant combination (octylphenol polyoxyethylene ether: xanthan gum=3:1) and 8% alcohol amine combination (triisopropanolamine: diethanol monoisopropanolamine=1:1), the remaining mass being made up to 100% with water.
The preparation method of the limestone cement carbon reduction auxiliary agent with large doping amount comprises the following steps: 15% sodium chloride, 0.10% dispersant combination (octylphenol polyoxyethylene ether: xanthan gum=3:1) and 8% alcohol amine combination (triisopropanolamine: diethanol monoisopropanolamine=1:1) were added to a beaker, the remaining mass was added with water to 100%, and the product 4 was dispersed by ultrasonic vibration for 5 hours.
The amounts of conventional grinding aid and product 4 are shown in tables 1 and 2.
2. Performance testing
The grinding aid used in the invention is a commercial grinding aid mainly comprising conventional alcohol amine, the mixing amount is 0.05%, and the mixing amount of the cement carbon reduction auxiliary agent is 0.15-2.0%. The cement formulations and performance test results are shown in tables 1 and 2 below:
table 1 cement formulation
TABLE 2 results of Cement physical Properties test
The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. The high-doping limestone cement carbon reduction auxiliary agent is characterized by comprising the following raw materials in percentage by mass:
coagulant: 7-20%; dispersing agent: 0.02-0.4%; alcohol amine: 5-15%, and the rest is supplemented to 100% by water.
2. The high-doping amount limestone cement carbon reduction auxiliary agent according to claim 1, wherein the high-doping amount limestone cement carbon reduction auxiliary agent is characterized in that: the coagulant is one or more of calcium chloride, calcium nitrate, calcium nitrite, sodium chloride, sodium thiocyanate, sodium carbonate and sodium bicarbonate.
3. The high-doping amount limestone cement carbon reduction auxiliary agent according to claim 1, wherein the high-doping amount limestone cement carbon reduction auxiliary agent is characterized in that: the dispersing agent is any one or mixture of a plurality of substances selected from polyurethane, guar gum, xanthan gum, sodium dodecyl benzene sulfonate, octyl phenol polyoxyethylene ether and cetyl trimethyl ammonium bromide.
4. The high-doping amount limestone cement carbon reduction auxiliary agent according to claim 1, wherein the high-doping amount limestone cement carbon reduction auxiliary agent is characterized in that: the alcohol amine is any one or two of triisopropanolamine, diethanol monoisopropanolamine, triethanolamine and triisopropanolamine.
5. A method for preparing a high-doping limestone cement carbon reduction auxiliary agent, which is characterized by applying the raw materials and the combination thereof according to any one of claims 1 to 4 for preparation, and specifically comprises the following steps:
adding 7-20% of coagulant, 0.02-0.4% of dispersing agent and 5-15% of alcohol amine into a beaker, adding water to 100% of the rest mass, and performing ultrasonic vibration dispersion for 3-6 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310284308.2A CN116444190A (en) | 2023-03-22 | 2023-03-22 | Large-doping limestone cement carbon reduction auxiliary agent and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310284308.2A CN116444190A (en) | 2023-03-22 | 2023-03-22 | Large-doping limestone cement carbon reduction auxiliary agent and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116444190A true CN116444190A (en) | 2023-07-18 |
Family
ID=87119361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310284308.2A Pending CN116444190A (en) | 2023-03-22 | 2023-03-22 | Large-doping limestone cement carbon reduction auxiliary agent and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116444190A (en) |
-
2023
- 2023-03-22 CN CN202310284308.2A patent/CN116444190A/en active Pending
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