CN105503003B - A kind of cement grinding aid and preparation method thereof - Google Patents
A kind of cement grinding aid and preparation method thereof Download PDFInfo
- Publication number
- CN105503003B CN105503003B CN201610001031.8A CN201610001031A CN105503003B CN 105503003 B CN105503003 B CN 105503003B CN 201610001031 A CN201610001031 A CN 201610001031A CN 105503003 B CN105503003 B CN 105503003B
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- grinding aid
- cement
- parts
- cement grinding
- carbonic acid
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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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- 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 a kind of cement grinding aid, it is made up of the raw material of following parts by weight：30 50 parts of carbonic acid glyceride, 40 60 parts of hydramine, 0.5 1.5 parts of catalyst.The invention also discloses the preparation method of the cement grinding aid.The present invention makes full use of monoethanolamine and diethanol amine with low cost, is reacted in the presence of catalyst with the carbonic acid glyceride with active carbonic acid ester group, with reference to specific technique, prepares the more excellent cement grinding aid of grinding aid enhancing performance；Preparation method is simple, and gained cement grinding aid volume is low, stable homogeneous, can not only stablize the bed of material, with significant grinding-aid effect, while also significantly improving the intensity of cement products, economize on electricity proposes production, promotes cement industry energy-saving and emission-reduction, wide market.
Description
Technical field
The present invention relates to cement additive technical field, more particularly to a kind of cement grinding aid and preparation method thereof.
Background technology
Cement is one of current most popular basic material, and it is huge that it produces the amount of disappearing, and cement industry as high pollution,
Highly energy-consuming trade its energy-saving receive much concern.Manufacture of cement can simply be summarized as the burning of two mill one, i.e. raw grinding, calcining, water
Mud grinding.Wherein, cement grinding is one of relatively low technological process of capacity usage ratio in cement production process, this mainly due to
After cement granules particle diameter is reduced to micro-, nanoscale, anti-wear performance and agglomeration tendency are significantly increased, and with cement granules not
Disconnected grinding, this trend and effect are just all the more obvious.Accordingly, it would be desirable to which artificial additional factor this reunited, sticked to destroy
Trend, so that cement granules are more prone to grinding to the requirement of correlation standard.Study and it was verified that in cement grinding
During add a small amount of grinding aid and can alleviate fine grained agglomeration tendency, effectively reduce grinding energy, improve particle grinding stream
Dynamic property.The use of cement grinding aid to cement production enterprise bring it is energy-saving, add unit-hour output, improve Industry Waste
The utilization rate of slag and the advantage for reducing a series of sustainable developments such as environmental pollution, with larger economic and social benefit and good
Good development prospect.
At present, triethanolamine is one of primary raw material of cement grinding aid, accounts for 70% or so of grinding aid agent prescription total amount,
Presently commercially available compounding cement grinding aid volume is big, and powder class volume is 0.5-1%, and liquid type volume is 0.03-0.1%, and liquid
Also there is the deficiencies such as delaminating deposition in class cement grinding aid, cause properties of product fluctuation big, and have impact on having for grinding aid enhancing performance
Effect is played；Simultaneously as the rise in price of the chemical raw materials such as oil, the price of triethanolamine rise steadily, water is seriously constrained
The promotion and application of cement grinding aids.Therefore, the cement that a kind of integrated cost is lower, grinding aid enhancing performance is more excellent is prepared
Agent, it will help the development of China's cement grinding aid industry.
The content of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of integrated cost is lower, grinding aid enhancing performance more
Excellent cement grinding aid.
Present invention also offers the preparation method of the cement grinding aid.
The purpose of the present invention is achieved by the following technical solution：
A kind of cement grinding aid, is made up of the raw material of following parts by weight：30-50 parts of carbonic acid glyceride, hydramine 40-60
Part, 0.5-1.5 parts of catalyst；
The hydramine is monoethanolamine or diethanol amine；
The catalyst is triethylamine；
The cement grinding aid is prepared by following steps：Carbonic acid glyceride, hydramine and catalyst are added to instead
Answer in device, stir, after 60-90 DEG C of reaction 3-7h, be cooled to room temperature, you can cement grinding aid is made.
It is preferred that, a kind of cement grinding aid is made up of the raw material of following parts by weight：35-45 parts of carbonic acid glyceride, alcohol
45-55 parts of amine, 0.8-1.0 parts of catalyst.
It is furthermore preferred that a kind of cement grinding aid, is made up of the raw material of following parts by weight：40 parts of carbonic acid glyceride, alcohol
50 parts of amine, 0.9 part of catalyst.
A kind of preparation method of cement grinding aid, is prepared by following steps：By carbonic acid glyceride, hydramine and urge
Agent is added in reactor, is stirred, and after 60-90 DEG C of reaction 3-7h, is cooled to room temperature, you can cement grinding aid is made.
Beneficial effects of the present invention：
1. the present invention makes full use of monoethanolamine and diethanol amine with low cost, lived in the presence of catalyst with carrying
Property carbonate group carbonic acid glyceride reaction, with reference to specific technique, prepare the more excellent cement of grinding aid enhancing performance
Grinding aid；
2. the volume of the cement grinding aid of the present invention is low, the only 0.01-0.03% of cement consumption, colourless transparent liquid,
One stabilization, can not only stablize the bed of material, with significant grinding-aid effect, while also significantly improving the intensity of cement products, economize on electricity is carried
Production, promotes cement industry energy-saving and emission-reduction, wide market；
3. the cement grinding aid of the present invention is used alone as cement grinding aid, is calculated, can carried with 0.02% volume of cement consumption
High mill hourly output 10-20%, economize on electricity 9-11%, and 3 days compression strength improves 2-5MPa, and compression strength improves 4-6MPa within 28 days；
Under conditions of maintaining cement grade constant, it is possible to reduce clinker 8-15%, dissolve cement mixture 7-12% more；Generally fit
Cement for various different mixing materials is used, with good economic and social benefit；
4. the cement grinding aid of the present invention not only can be used alone, can also equivalent replace triethanolamine and other conventional grinding aids
Agent component compound use, grinding aid enhancing effect is notable.
Embodiment
The technical scheme in the embodiment of the present invention is clearly and completely described below, it is clear that described embodiment
Only a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, the common skill in this area
The every other embodiment that art personnel are obtained under the premise of creative work is not made, belongs to the model that the present invention is protected
Enclose.
The chemical reagent that the embodiment of the present invention is used is purchased in market.
The present invention makes full use of monoethanolamine and diethanol amine with low cost, in the presence of catalyst with active
The carbonic acid glyceride reaction of carbonate group, with reference to specific technique, prepares the more excellent cement of grinding aid enhancing performance and helps
Grinding agent.On the one hand the cement grinding aid can produce certain chelation with the metal ion in cement, effectively reduce metal from
The concentration of son, is conducive to the dissolution of more metal ions, promotes gelling system reactivity, is conducive to 3d/28d compression strength
Improve.On the other hand the cement grinding aid of the present invention can be adsorbed on cement solids particle surface, and the structure for changing particle surface is special
Property, eliminate or weaken the aggregation and adhesion between particle and particle, particle and abrasive media, improve mill efficiency, reach that economize on electricity is carried
The effect of production.
Embodiment 1
A kind of cement grinding aid, is made up of the raw material of following parts by weight：50 parts of carbonic acid glyceride, diethanol amine 40
Part, 0.5 part of triethylamine.
A kind of preparation method of cement grinding aid, is prepared by following steps：By carbonic acid glyceride, diethanol amine
Add in reactor, stir with triethylamine, after 90 DEG C of reaction 3h, be cooled to room temperature, you can cement grinding aid is made.
Embodiment 2
A kind of cement grinding aid, is made up of the raw material of following parts by weight：45 parts of carbonic acid glyceride, diethanol amine 45
Part, 0.8 part of triethylamine.
A kind of preparation method of cement grinding aid, is prepared by following steps：By carbonic acid glyceride, diethanol amine
Add in reactor, stir with triethylamine, after 80 DEG C of reaction 4h, be cooled to room temperature, you can cement grinding aid is made.
Embodiment 3
A kind of cement grinding aid, is made up of the raw material of following parts by weight：40 parts of carbonic acid glyceride, monoethanolamine 50
Part, 0.9 part of triethylamine.
A kind of preparation method of cement grinding aid, is prepared by following steps：By carbonic acid glyceride, monoethanolamine
Add in reactor, stir with triethylamine, after 70 DEG C of reaction 5h, be cooled to room temperature, you can cement grinding aid is made.
Embodiment 4
A kind of cement grinding aid, is made up of the raw material of following parts by weight：35 parts of carbonic acid glyceride, diethanol amine 55
Part, 1.0 parts of triethylamine.
A kind of preparation method of cement grinding aid, is prepared by following steps：By carbonic acid glyceride, diethanol amine
Add in reactor, stir with triethylamine, after 80 DEG C of reaction 6h, be cooled to room temperature, you can cement grinding aid is made.
Embodiment 5
A kind of cement grinding aid, is made up of the raw material of following parts by weight：30 parts of carbonic acid glyceride, monoethanolamine 60
Part, 1.5 parts of triethylamine.
A kind of preparation method of cement grinding aid, is prepared by following steps：By carbonic acid glyceride, monoethanolamine
Add in reactor, stir with triethylamine, after 60 DEG C of reaction 7h, be cooled to room temperature, you can cement grinding aid is made.
Grinding-aid effect contrast experiment
In the case of being consistent using the cement grinding process condition of 32.5 grades of production, raw material types and proportioning,
Cement grinding aid prepared by triethanolamine, carbonic acid glyceride, monoethanolamine, diethanol amine and above-described embodiment 1-5 is separately added into,
The grinding together with clinker, gypsum and mixing material, test result is as shown in table 1.
The grinding aid performance comparision table of table 1
As can be seen from Table 1, carbonic acid glyceride, monoethanolamine and diethanol amine is used alone does not have grinding aid enhancing effect substantially
Really, substantially without putting forward production power savings.Use the 3 days compression strength and 28 days pressure resistances of the embodiment 1-5 cement grinding aids prepared
Degree is significantly improved, and puies forward production power savings substantially, and comprehensive using effect is substantially better than triethanolamine.Illustrate the cement of the present invention
Agent has good grinding-aid effect and puies forward production power savings, is a kind of excellent cement grinding aid of performance.
Above-described embodiment is preferably embodiment, but embodiments of the present invention are not by above-described embodiment of the invention
Limitation, other any Spirit Essences without departing from the present invention and the change made under principle, modification, replacement, combine, simplification,
Equivalent substitute mode is should be, protection scope of the present invention is included in.
Claims (4)
1. a kind of cement grinding aid, it is characterised in that be made up of the raw material of following parts by weight：30-50 parts of carbonic acid glyceride,
40-60 parts of hydramine, 0.5-1.5 parts of catalyst；
The hydramine is monoethanolamine or diethanol amine；
The catalyst is triethylamine；
The cement grinding aid is prepared by following steps：Carbonic acid glyceride, hydramine and catalyst are added into reactor
In, stir, after 60-90 DEG C of reaction 3-7h, be cooled to room temperature, you can cement grinding aid is made.
2. cement grinding aid according to claim 1, it is characterised in that be made up of the raw material of following parts by weight：Carbon
35-45 parts of acid glyceride, 45-55 parts of hydramine, 0.8-1.0 parts of catalyst.
3. cement grinding aid according to claim 2, it is characterised in that be made up of the raw material of following parts by weight：Carbon
40 parts of acid glyceride, 50 parts of hydramine, 0.9 part of catalyst.
4. the preparation method of the cement grinding aid any one of a kind of claim 1-3, it is characterised in that be by following step
Suddenly prepare：Carbonic acid glyceride, hydramine and catalyst are added in reactor, stirred, 60-90 DEG C of reaction 3-7h
Afterwards, it is cooled to room temperature, you can cement grinding aid is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610001031.8A CN105503003B (en) | 2016-01-04 | 2016-01-04 | A kind of cement grinding aid and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610001031.8A CN105503003B (en) | 2016-01-04 | 2016-01-04 | A kind of cement grinding aid and preparation method thereof |
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| CN105503003A CN105503003A (en) | 2016-04-20 |
| CN105503003B true CN105503003B (en) | 2017-09-19 |
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| CN108623205B (en) * | 2017-03-18 | 2021-03-16 | 北京丰乐宝科技有限公司 | Method for improving homogeneity of cement grinding aid |
| CN107473617B (en) * | 2017-09-13 | 2019-12-31 | 唐山冀东水泥外加剂有限责任公司 | Cement grinding aid containing tartaric acid and preparation method thereof |
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| CN100460448C (en) * | 2007-04-09 | 2009-02-11 | 中国石油化工集团公司 | Preparation method of multifunctional resistance-reducing polymer suspension |
| CN101805147B (en) * | 2010-03-29 | 2013-03-20 | 山东宏艺科技股份有限公司 | Preparation method of liquid cement grinding aid |
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Address after: 276034 East Renmin Road, Hedong District, Linyi City, Shandong Province Patentee after: Linyi Hongyi Science and Technology Development Co., Ltd. Address before: 276034 Renmin Street, Hedong District, Linyi City, Shandong Province, 369 Patentee before: Shandong Hongyi Technology Co., Ltd. |
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Address after: 276000 north of the intersection of Wenquan road and Fenghuang street, Fenghuangling sub district office, Hedong, Linyi City, Shandong Province Patentee after: Linyi conch New Material Technology Co.,Ltd. Address before: 276034 eastern section of Renmin Road, Hedong District, Shandong, Linyi Patentee before: LINYI HONGYI TECHNOLOGY DEVELOPMENT Co.,Ltd. |