CN110294604A - Modified cement grinding aid of a kind of triethanolamine and preparation method thereof - Google Patents
Modified cement grinding aid of a kind of triethanolamine and preparation method thereof Download PDFInfo
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- CN110294604A CN110294604A CN201910613826.8A CN201910613826A CN110294604A CN 110294604 A CN110294604 A CN 110294604A CN 201910613826 A CN201910613826 A CN 201910613826A CN 110294604 A CN110294604 A CN 110294604A
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- Prior art keywords
- triethanolamine
- modified
- glycerol
- grinding aid
- cement 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
-
- 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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention discloses modified cement grinding aids of a kind of triethanolamine and preparation method thereof, which is prepared by following raw material: modified glycerol-Sulfation-triethanolamine 5~16%, sodium acetate 5 ~ 8%, molasses 3 ~ 5%, sodium thiosulfate 11~18%, surplus are water, total amount 100%；The percentage is mass percent.It has used that auxiliary agent its chemical stability added according to demand is good, halide ion without containing corrosion equipment, has significantly improved the early strength and later strength of cement, the participation of modified hydramine can significantly improve mill efficiency, the water-retaining property after improving cement grinding.
Description
Technical field
The invention belongs to technical field of cement production, and in particular to a kind of modified cement grinding aid of triethanolamine and its preparation
Method.
Background technique
In cement production process, cement grinding link energy consumption is high, and capacity usage ratio is very low, and uses cement grinding aid
Invest it is small, it is quick, and cement performance can be improved, be it is energy-saving, improve mill efficiency most simple effective method.Mesh
Before, commodity cement grinding aid is mostly the organic matters such as alcamines and polyalcohols, such as triethanolamine, triisopropanolamine, ethylene glycol
Compound.Triethanolamine is the very strong hydramine of polarity, and aqueous solution, being capable of metal ion and mineral in chelating cement in alkalinity
Matter interaction, uses as concrete early strength agent in early days, can soon improve cement early strength, but can make later strength
Declined.
Triethanolamine is usually used in compounding with other components as cement grinding aid, has certain grinding aid to imitate cement grinding
Fruit, but triethanolamine price is higher, so that triethanolamine series cement grinding aid higher cost.
Summary of the invention
Purpose: to solve the deficiencies in the prior art, the present invention provides a kind of modified cement grinding aid of triethanolamine.
Technical solution: in order to solve the above technical problems, the technical solution adopted by the present invention are as follows:
A kind of modified cement grinding aid of triethanolamine, which is characterized in that the cement grinding aid is prepared by following raw material:
Modified glycerol-Sulfation-triethanolamine 5~16%, sodium acetate 5~8%, molasses 3~5%, sodium thiosulfate 11~18%,
Surplus is water, total amount 100%；The percentage is mass percent；
According to formula rate, modified glycerol-Sulfation-triethanolamine, sodium acetate, molasses, sodium thiosulfate are dissolved
In water, be uniformly mixed to get.
Preferably, the modified cement grinding aid of the triethanolamine, which is characterized in that the modified glycerol-sulphur
Esterification-triethanolamine is that triethanolamine and ammonium sulfate and glycerine reaction are made, and preparation method includes:
Triethanolamine and ammonium sulfate and glycerol are added in the reaction vessel, stirs and evenly mixs, catalyst, drop are added before heating up
The concentrated sulfuric acid is added as catalyst in add mode, and then heating is heated to 80~90 DEG C, after reaction, cools down and is evaporated under reduced pressure and remove
Moisture is gone to obtain modified glycerol-Sulfation-triethanolamine, i.e. modified triethanolamine.
More preferably, in the modified triethanolamine preparation process, the triethanolamine of addition, ammonium sulfate and glycerol rub
You are than being 1:1:1.
The amount that the catalyst concentrated sulfuric acid is added is the 5%~8% of reactant triethanolamine, ammonium sulfate and glycerol gross mass.
Preferably, the modified cement grinding aid of the triethanolamine, is prepared by following raw material: modification is sweet
Oil-Sulfation-triethanolamine 5%, sodium acetate 5%, molasses 3%, sodium thiosulfate 11%, surplus are water, total amount 100%；
The percentage is mass percent.
Preferably, the modified cement grinding aid of the triethanolamine, is prepared by following raw material: modification is sweet
Oil-Sulfation-triethanolamine 10%, sodium acetate 7%, molasses 4%, sodium thiosulfate 15%, surplus are water, total amount 100%；
The percentage is mass percent.
Preferably, the modified cement grinding aid of the triethanolamine, is prepared by following raw material: modification is sweet
Oil-Sulfation-triethanolamine 13%, sodium acetate 6%, molasses 4%, sodium thiosulfate 16%, surplus are water, total amount 100%；
The percentage is mass percent.
Preferably, the modified cement grinding aid of the triethanolamine, is prepared by following raw material: modification is sweet
Oil-Sulfation-triethanolamine 16%, sodium acetate 8%, molasses 5%, sodium thiosulfate 18%, surplus are water, total amount 100%；
The percentage is mass percent.
The present invention provides modified cement grinding aids of a kind of triethanolamine and preparation method thereof, according to the grinding aid mechanism of action
Correlation theory, grinding aid relies primarily on the surface-active action of its ingredient, to reduce hardness, improves dispersion effect, prevents from gathering
It closes, therefore, the grinding aid reinforcing effect for improving modified triethanolamine should increase based on polar group number.There are three triethanolamine tools
Hydroxyl and a tertiary amine nitrogen-atoms in alkalinity, it is possible to hydroxy esterification be introduced carbonyl and other groups or react life with acid
Related group is introduced at ammonium salt.Different modified effects may be brought by introducing different groups.Triethanolamine is modified cement
Agent can reduce material surface can, weaken and gather effect caused by molecular attraction, particle crackle when help external force work done
Accelerate extension, to improve mill efficiency, realizes high-quality, energy saving, high yield the purpose of ball mill；Triethanolamine is modified cement
Agent improves cement early strength, improves cement fluidity, shortens setting time, and catalyst, which is added, in reduction water requirement again to mention
High-selenium corn efficiency, addition content is low, economical and practical.
The utility model has the advantages that the modified cement grinding aid of triethanolamine provided by the invention, chemical stability is good, and addition content is low,
Nontoxic and pollution-free, the halide ion without containing corrosion equipment significantly improves the early strength and later strength of cement, modified alcohol
The participation of amine can significantly improve mill efficiency, the water-retaining property after improving cement grinding.It has the advantage that
1) actual amount is less than common grinding aid.
2) chemical stability is preferable, introduces polyhydroxy and different groups improves grinding aid activity.
3) nontoxic and pollution-free, it can be improved grinding aid efficiency, increase unit-hour output, it is non-corrosive, it is "dead", it is not belonging to endanger
Dangerous chemicals.
Specific embodiment
Illustrate below with reference to example to the present invention: percentage is mass percent in the present invention.
Embodiment 1
A kind of modified cement grinding aid of triethanolamine, raw material composition are as follows: modified glycerol-Sulfation-triethanolamine
5%, sodium acetate 5%, molasses 3%, sodium thiosulfate 11%, surplus is water, total amount 100%；The percentage is quality hundred
Divide ratio.The modified triethanolamine its preparation the following steps are included:
With the triethanolamine of mole 1:1:1, ammonium sulfate and glycerine reaction: triethanolamine being added in three neck round bottom flask
(55g, 0.36mol), ammonium sulfate (47.6g, 0.36mol) and glycerol (33g, 0.36mol) stirring, are added catalyst before heating up,
The catalyst concentrated sulfuric acid (the 5% of reactant gross mass) 6.78g is added to be slowly added dropwise, is heated to 80 DEG C, 5h after reaction, cools down
And it is evaporated under reduced pressure removing moisture and obtains modified glycerol-Sulfation-triethanolamine modifier.
The percentage is mass percent, according to formula rate, by modified glycerol-Sulfation-triethanolamine, second
Sour sodium, molasses, sodium thiosulfate are dissolved in water, and are uniformly mixed to get product 1.
Embodiment 2
A kind of modified cement grinding aid of triethanolamine, raw material composition are as follows: modified glycerol-Sulfation-triethanolamine
10%, sodium acetate 7%, molasses 4%, sodium thiosulfate 15%, surplus is water, total amount 100%；The percentage is quality hundred
Divide ratio.The modified triethanolamine its preparation the following steps are included:
With the triethanolamine of mole 1:1:1, ammonium sulfate and glycerine reaction: triethanolamine being added in three neck round bottom flask
(55g, 0.36mol), ammonium sulfate (47.6g, 0.36mol) and glycerol (33g, 0.36mol) stirring, are added catalyst before heating up,
The catalyst concentrated sulfuric acid (the 6% of reactant gross mass) 8.14g is added to be slowly added dropwise, is heated to 85 DEG C, 4h after reaction, cools down
And it is evaporated under reduced pressure removing moisture and obtains modified glycerol-Sulfation-triethanolamine modifier.
The percentage is mass percent, according to formula rate, by modified glycerol-Sulfation-triethanolamine, second
Sour sodium, molasses, sodium thiosulfate are dissolved in water, and are uniformly mixed to get product 2.
Embodiment 3
A kind of modified cement grinding aid of triethanolamine, raw material composition are as follows: modified glycerol-Sulfation-triethanolamine
13%, sodium acetate 6%, molasses 4%, sodium thiosulfate 16%, surplus is water, total amount 100%；The percentage is quality hundred
Divide ratio.The modified triethanolamine its preparation the following steps are included:
With the triethanolamine of mole 1:1:1, ammonium sulfate and glycerine reaction: triethanolamine being added in three neck round bottom flask
(55g, 0.36mol), ammonium sulfate (47.6g, 0.36mol) and glycerol (33g, 0.36mol) stirring, are added catalyst before heating up,
The catalyst concentrated sulfuric acid (the 7% of reactant gross mass) 9.49g is added to be slowly added dropwise, is heated to 88 DEG C, 3h after reaction, cools down
And it is evaporated under reduced pressure removing moisture and obtains modified glycerol-Sulfation-triethanolamine modifier.
The percentage is mass percent, according to formula rate, by modified glycerol-Sulfation-triethanolamine, second
Sour sodium, molasses, sodium thiosulfate are dissolved in water, and are uniformly mixed to get product 3.
Embodiment 4
A kind of modified cement grinding aid of triethanolamine, raw material composition are as follows: modified glycerol-Sulfation-triethanolamine
16%, sodium acetate 8%, molasses 5%, sodium thiosulfate 18%, surplus is water, total amount 100%；The percentage is quality hundred
Divide ratio.The modified triethanolamine its preparation the following steps are included:
With the triethanolamine of mole 1:1:1, ammonium sulfate and glycerine reaction: triethanolamine being added in three neck round bottom flask
(55g, 0.36mol), ammonium sulfate (47.6g, 0.36mol) and glycerol (33g, 0.36mol) stirring, are added catalyst before heating up,
The catalyst concentrated sulfuric acid (the 8% of reactant gross mass) 10.85g is added to be slowly added dropwise, is heated to 90 DEG C, 2h after reaction, drops
Temperature and be evaporated under reduced pressure remove moisture obtain modified glycerol-Sulfation-triethanolamine modifier.
The percentage is mass percent, according to formula rate, by modified glycerol-Sulfation-triethanolamine, second
Sour sodium, molasses, sodium thiosulfate are dissolved in water, and are uniformly mixed to get product 4.
Performance test
Application method of the invention, the addition content of cement grinding aid are the one thousandth of cement ingredient.
Cement is sampled according to Sampling method of cement GB/T 12573, is surveyed according to the test method of cement performance detection
Determine the physical property of cement.Cement specific surface is tested according to GB/T 8074-2008 " Method of determination for specific surface of cement Bo Shi method "
Product；Strength of cement mortar is measured according to GB/T17671-1999 " Test method for strength of hydraulic cement mortar (ISO method) ".
As a result it see the table below:
The present invention is disclosed with preferred embodiment above, so it is not intended to limiting the invention, all to use equivalent replacement
Or equivalent transformation mode technical solution obtained, it is within the scope of the present invention.
Claims (8)
1. a kind of modified cement grinding aid of triethanolamine, which is characterized in that the cement grinding aid is prepared by following raw material: being changed
Property glycerol-Sulfation-triethanolamine 5~16%, sodium acetate 5 ~ 8%, molasses 3 ~ 5%, sodium thiosulfate 11~18%, surplus are
Water, total amount 100%；The percentage is mass percent；
According to formula rate, modified glycerol-Sulfation-triethanolamine, sodium acetate, molasses, sodium thiosulfate are dissolved in water
In, be uniformly mixed to get.
2. the modified cement grinding aid of triethanolamine according to claim 1, which is characterized in that the modified glycerol-sulfuric acid
Esterification-triethanolamine is that triethanolamine and ammonium sulfate and glycerine reaction are made, and preparation method includes:
Triethanolamine and ammonium sulfate and glycerol are added in the reaction vessel, stirs and evenly mixs, catalyst, dropwise addition side is added before heating up
The concentrated sulfuric acid is added as catalyst in formula, and then heating is heated to 80 ~ 90 DEG C, after reaction, cools down and is evaporated under reduced pressure removing water
Get modified glycerol-Sulfation-triethanolamine, i.e. modified triethanolamine.
3. the modified cement grinding aid of triethanolamine according to claim 2, which is characterized in that the modified triethanolamine system
During standby, the molar ratio of the triethanolamine of addition, ammonium sulfate and glycerol is 1:1:1.
4. the modified cement grinding aid of triethanolamine according to claim 2, which is characterized in that the modified triethanolamine system
During standby, the amount that the catalyst concentrated sulfuric acid is added is the 5% ~ 8% of reactant triethanolamine, ammonium sulfate and glycerol gross mass.
5. the modified cement grinding aid of triethanolamine according to claim 1, which is characterized in that be prepared by following raw material
Arrive: modified glycerol-Sulfation-triethanolamine 5%, sodium acetate 5%, molasses 3%, sodium thiosulfate 11%, surplus are water, total amount
100%；The percentage is mass percent.
6. the modified cement grinding aid of triethanolamine according to claim 1, which is characterized in that be prepared by following raw material
Arrive: modified glycerol-Sulfation-triethanolamine 10%, sodium acetate 7%, molasses 4%, sodium thiosulfate 15%, surplus are water, total amount
100%；The percentage is mass percent.
7. the modified cement grinding aid of triethanolamine according to claim 1, which is characterized in that be prepared by following raw material
Arrive: modified glycerol-Sulfation-triethanolamine 13%, sodium acetate 6%, molasses 4%, sodium thiosulfate 16%, surplus are water, total amount
100%；The percentage is mass percent.
8. the modified cement grinding aid of triethanolamine according to claim 1, which is characterized in that be prepared by following raw material
Arrive: modified glycerol-Sulfation-triethanolamine 16%, sodium acetate 8%, molasses 5%, sodium thiosulfate 18%, surplus are water, total amount
100%；The percentage is mass percent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910613826.8A CN110294604A (en) | 2019-07-09 | 2019-07-09 | Modified cement grinding aid of a kind of triethanolamine and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910613826.8A CN110294604A (en) | 2019-07-09 | 2019-07-09 | Modified cement grinding aid of a kind of triethanolamine and preparation method thereof |
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| CN110294604A true CN110294604A (en) | 2019-10-01 |
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ID=68030758
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| CN201910613826.8A Pending CN110294604A (en) | 2019-07-09 | 2019-07-09 | Modified cement grinding aid of a kind of triethanolamine and preparation method thereof |
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Citations (5)
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|---|---|---|---|---|
| CN102603226A (en) * | 2012-03-20 | 2012-07-25 | 柳州宝能建材科技有限公司 | Liquid cement grinding aid |
| CN103288373A (en) * | 2013-05-09 | 2013-09-11 | 株洲宏信特种建材有限公司 | Cement compound type grinding aid |
| WO2014181723A1 (en) * | 2013-05-09 | 2014-11-13 | 花王株式会社 | Strength enhancer composition for hydraulic powder and method for enhancing strength of hardened product of hydraulic powder |
| CN107572855A (en) * | 2017-08-28 | 2018-01-12 | 南京成弘建新材料有限公司 | For slag, the activity booster and preparation method thereof of slag |
| CN107964072A (en) * | 2017-11-02 | 2018-04-27 | 石台县金兴钙业有限公司 | A kind of preparation method of concrete grinding aid |
-
2019
- 2019-07-09 CN CN201910613826.8A patent/CN110294604A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102603226A (en) * | 2012-03-20 | 2012-07-25 | 柳州宝能建材科技有限公司 | Liquid cement grinding aid |
| CN103288373A (en) * | 2013-05-09 | 2013-09-11 | 株洲宏信特种建材有限公司 | Cement compound type grinding aid |
| WO2014181723A1 (en) * | 2013-05-09 | 2014-11-13 | 花王株式会社 | Strength enhancer composition for hydraulic powder and method for enhancing strength of hardened product of hydraulic powder |
| CN107572855A (en) * | 2017-08-28 | 2018-01-12 | 南京成弘建新材料有限公司 | For slag, the activity booster and preparation method thereof of slag |
| CN107964072A (en) * | 2017-11-02 | 2018-04-27 | 石台县金兴钙业有限公司 | A kind of preparation method of concrete grinding aid |
Non-Patent Citations (1)
| Title |
|---|
| 袁松涛: "三乙醇胺系水泥助磨剂的改性和应用研究", 《中国优秀硕士学位论文全文数据库 工程科技I辑》 * |
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