CN104045257A - High-moisture admixture cement grinding aid and preparation method thereof - Google Patents
High-moisture admixture cement grinding aid and preparation method thereof Download PDFInfo
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- CN104045257A CN104045257A CN201410243079.0A CN201410243079A CN104045257A CN 104045257 A CN104045257 A CN 104045257A CN 201410243079 A CN201410243079 A CN 201410243079A CN 104045257 A CN104045257 A CN 104045257A
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- grinding aid
- mother liquor
- polyvalent alcohol
- cement
- moisture
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- 238000000227 grinding Methods 0.000 title claims abstract description 72
- 239000004568 cement Substances 0.000 title claims abstract description 62
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 57
- 239000012452 mother liquor Substances 0.000 claims abstract description 26
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims abstract description 13
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910052921 ammonium sulfate Inorganic materials 0.000 claims abstract description 13
- 235000011130 ammonium sulphate Nutrition 0.000 claims abstract description 13
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000007788 liquid Substances 0.000 claims abstract description 13
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 claims abstract description 13
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000006243 chemical reaction Methods 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000002994 raw material Substances 0.000 claims abstract description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 29
- 239000002893 slag Substances 0.000 claims description 28
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 claims description 11
- 229930006000 Sucrose Natural products 0.000 claims description 11
- 239000005720 sucrose Substances 0.000 claims description 11
- 229960004418 trolamine Drugs 0.000 claims description 11
- 238000003756 stirring Methods 0.000 claims description 9
- 239000012535 impurity Substances 0.000 claims description 3
- 238000012216 screening Methods 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000000843 powder Substances 0.000 abstract description 7
- 229920005862 polyol Polymers 0.000 abstract 5
- 150000003077 polyols Chemical class 0.000 abstract 5
- 239000002245 particle Substances 0.000 abstract 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 abstract 1
- 240000000111 Saccharum officinarum Species 0.000 abstract 1
- 235000007201 Saccharum officinarum Nutrition 0.000 abstract 1
- 238000005054 agglomeration Methods 0.000 abstract 1
- 230000002776 aggregation Effects 0.000 abstract 1
- 239000002270 dispersing agent Substances 0.000 abstract 1
- 238000001179 sorption measurement Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 11
- 239000002699 waste material Substances 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 239000010881 fly ash Substances 0.000 description 4
- 239000002910 solid waste Substances 0.000 description 4
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- 239000003245 coal Substances 0.000 description 3
- 229910052748 manganese Inorganic materials 0.000 description 3
- 239000011572 manganese Substances 0.000 description 3
- 239000011574 phosphorus Substances 0.000 description 3
- 229910052698 phosphorus Inorganic materials 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000003556 assay Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000003467 diminishing effect Effects 0.000 description 1
- ZZVUWRFHKOJYTH-UHFFFAOYSA-N diphenhydramine Chemical compound C=1C=CC=CC=1C(OCCN(C)C)C1=CC=CC=C1 ZZVUWRFHKOJYTH-UHFFFAOYSA-N 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- NIFIFKQPDTWWGU-UHFFFAOYSA-N pyrite Chemical compound [Fe+2].[S-][S-] NIFIFKQPDTWWGU-UHFFFAOYSA-N 0.000 description 1
- 229910052683 pyrite Inorganic materials 0.000 description 1
- 239000011028 pyrite Substances 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Abstract
The invention discloses a high-moisture admixture cement grinding aid. Raw materials of the high-moisture admixture cement grinding aid comprise, by mass, 40-55% of a polyol grinding aid mother liquor, 0.01-0.5% of acrylic acid, 1-10% of ammonium sulfate, 0.02-0.05% of sodium dodecyl benzene sulfonate, 2-5% of triethanolamine, 1-5% of a sugarcane sugar residue liquid, and the balance water, wherein the total amount of the raw materials is 100%. A preparation method of the polyol grinding aid mother liquor comprises the following steps: adding 2 parts of maleic anhydride and 1 part of polyol into a reaction pot, uniformly mixing, and reacting at 100DEG C for 3h to synthesize the polyol grinding aid mother liquor. The grinding aid mother liquor synthesized by using maleic anhydride and polyol substitutes expensive triethanolamine, so the fluidity of the high-moisture material is substantially increased, the grinding efficiency of a grinding machine is improved, and the output per machine per hour is improved; and the above dispersant sodium dodecyl benzene sulfonate with high adsorption strength can obviously solve the powder agglomeration phenomenon, improve the particle graduation of cement and increase the micro-powder particle content. Ammonium sulfate contained in the grinding aid can improve the strength of cement in all stages.
Description
Technical field
The present invention relates to a kind of high-moisture mixed material cement grinding aid and preparation method thereof, belong to grinding aid technical field.
Background technology
Along with industrialization and IT application process are constantly accelerated, the quantity discharged of trade waste constantly increases, and according to relevant statistics, China produces 7.84 hundred million tons of trade wastes every year.Mainly contain waste fuel (flyash, coal gangue, slag etc.), metallurgical slag (blast-furnace slag, slag, manganese slag etc.), residue of chemical industry (alkaline residue, carbide slag, pyrite slag etc.), these solid waste contain the heavy metal element having a strong impact on that has to mankind itself and the environment of depending on for existence mostly.How these wastes of processing of science, realize innoxious and resource utilization, are the focuses that the whole society pays close attention to.And China is cement big country, Cement industry, as one of basic starting material of China, has very important status in national economy sustainable development.The rapid growth of cement output, the development of strong support national economy, but be also subject to the restriction of resource, the energy, envrionment conditions simultaneously.If utilize solid waste cement kiln altogether the technology of putting produce cement, can reduce the carrying capacity of environment that solid waste causes, realized again the resource utilization of waste, for manufacture of cement provides resource, the energy.
Along with constantly perfect with environmental legislation updated of production technique and technology, this technology is widely used in the offal treatment of developed country.Solid waste cement kiln is put altogether technology and is in the starting stage in China, though paid attention to, also has wretched insufficiency aspect technology and laws and regulations.These wastes are applied in Cement industry as blended material, adjust cement mark, can alleviate again the load of environment when reducing costs.But adding of blended material will inevitably affect output and strength of cement to a certain extent.And the appearance of grinding aid also affects cement industry.
Due to the singularity of drawing materials of blended material, composition and moisture are difficult to control, and in most cases, waste is all too high as the moisture of blended material, and particularly the blended material of high-moisture has a strong impact on manufacture of cement.The Toughness Ratio dry material of moist material large, is difficult for grinding; In addition, when the high humidity of material, in mill, fine powder easily sticks to the surface of the liner plate of grinding element, forms by " cushion plate ", reduces the milling capacity of ball mill; Moisture fine powder also can stop up bin isolation board comb seam, hinders material and passes through, and causes ball mill output to decline; In mill, material moisture height also can cause " full mill ".
If cement production enterprise manufacturing condition is better, such as there being good drying system, aspect material moisture control, will do relatively goodly, the influence degree of mill output is expected to reduce.Otherwise the moisture controlled of material is poor, in material moisture fluctuation larger, cause mill output fluctuation larger, had a strong impact on normal production run.Consider to add drying system can strengthen the production cost of cement production enterprise from economic angle.
The present invention is taking traditional cement grinding aid as basis, for the high problem of cement mixture moisture, a kind of efficient, composite cement grinding aid of research and development, solve while using all kinds of wastes to make blended material output not high in cement production process, the problem of low when the cement grinding mill board that causes because blended material moisture is high, production declining.
Summary of the invention
Object: for solving the deficiencies in the prior art, break through one by one for different blended materials, develop a series of grinding aids, solve different blended materials as high-moisture flyash, grain slag, coal gangue, manganese slag, the cement mill unit-hour output that phosphorus slag etc. cause declines, full mill, the problems such as each age strength reduction, solve due to high the yielding poorly of causing of blended material moisture, cost is high, the problem that the utilization of part blended material is restricted, the invention provides a kind of high-moisture mixed material cement grinding aid and preparation method thereof, thereby make the flyash of some high-moistures, the blended materials such as slag without baking procedure directly into mill, improve even under the prerequisite of strength of cement not affecting cement quality, can be cost-saving, also alleviated topsoil.
Technical scheme: for solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of high-moisture mixed material cement grinding aid, high-moisture mixed material cement grinding aid, its raw material consists of: polyvalent alcohol grinding aid mother liquor 40-55%, vinylformic acid 0.01-0.5%, ammonium sulfate 1-10%, Sodium dodecylbenzene sulfonate 0.02-0.05%, trolamine 2-5%, sucrose slag liquid 1-5%, surplus is water, total amount 100%; Described per-cent is mass percent.
As preferred version, its raw material consists of: polyvalent alcohol grinding aid mother liquor 40-55%, vinylformic acid 0.2-0.5%, ammonium sulfate 5-10%, Sodium dodecylbenzene sulfonate 0.02-0.05%, trolamine 2-5%, sucrose slag liquid 1-5%, surplus is water, total amount 100%; Described per-cent is mass percent.
Described high-moisture mixed material cement grinding aid, it is characterized in that: the preparation method of described polyvalent alcohol grinding aid mother liquor is as follows: in reactor, add 1 part of 2 parts of maleic anhydride, polyvalent alcohol to mix, in 90-110 DEG C of reaction 2-4h, the synthetic polyvalent alcohol grinding aid mother liquor that to obtain.
As preferred version, the preparation method of described polyvalent alcohol grinding aid mother liquor is as follows: in reactor, add 1 part of 2 parts of maleic anhydride, polyvalent alcohol to mix, and in 100 DEG C of reaction 3h, the synthetic polyvalent alcohol grinding aid mother liquor that to obtain.
The present invention also provides the preparation method of above-mentioned high-moisture mixed material cement grinding aid, the steps include:
1), below polyvalent alcohol grinding aid mother liquor control temperature to 60 DEG C, according to formula rate, add water, vinylformic acid, ammonium sulfate reaction 20-40min;
2) then add while stirring Sodium dodecylbenzene sulfonate, trolamine, stir; Add again sucrose slag liquid, stir;
3), again after 150 order stainless steel sift impurity screenings, obtain high-moisture mixed material cement grinding aid.
Beneficial effect: in high-moisture mixed material cement grinding aid provided by the invention, use the synthetic grinding aid mother liquor of maleic anhydride and polyvalent alcohol, the trolamine that alternative price is higher, adopts pointed formula rate, optimize the composition of traditional grinding aid, between each component, mutually acted synergistically; Can significantly increase high moisture material mobility, improve mill grinding efficiency, improve mill hourly output.1, adding mass percent is the polyvalent alcohol grinding aid mother liquor of 40-55%, can improve cement mill unit-hour output; 2, adding mass percent is the mobility that 0.02%-0.05% Sodium dodecylbenzene sulfonate can increase cement, can obviously solve powder reuniting phenomenon, improves the grain composition of cement, increases micro powder granule content; 3, adding mass percent is the lateral reactivity that the ammonium sulfate of 1-10% can excite blended material, and within 3 days 28 days, intensity increases by a year-on-year basis; 4, adding mass percent is that the sucrose slag liquid of 1-5% can regulate cement setting time.
Important breakthrough innovative point of the present invention is: 1, first by this problem of high-moisture blended material grinding aid, special project verification research, helps cement production enterprise to use waste to make blended material more, utilizes waste resource, energy-conserving and environment-protective.2, add the synthesis mother liquid of maleic anhydride and polyvalent alcohol to replace the use of hydramine, reduce costs.3, polyvalent alcohol surfactivity is stronger, can eliminate adhesion and the clustering phenomena of fine powder, accelerates material grinding process, improves mill efficiency, reduces unit grinding pow consumption, improves output.4, solved the low problem of high-moisture blended material unit-hour output, can corresponding raising blended material mix ratio, cost-saving.
Embodiment
Below in conjunction with example, the present invention is illustrated:
Embodiment 1: a kind of high-moisture mixed material cement grinding aid, composed as follows:
Polyvalent alcohol grinding aid mother liquor 40%
Vinylformic acid 0.01%
Ammonium sulfate 1%
Sodium dodecylbenzene sulfonate 0.02%
Trolamine 2%
Sucrose slag liquid 1%
Surplus is water, and total amount is 100%.
Wherein, the preparation method of polyvalent alcohol grinding aid mother liquor is as follows: in reactor, add 1 part of 2 parts of maleic anhydride, polyvalent alcohol to mix, and in 90-110 DEG C of reaction 2-4h, the synthetic polyvalent alcohol grinding aid mother liquor that to obtain.As most preferably, in 100 DEG C of reaction 3h.
The preparation method of high-moisture mixed material cement grinding aid, step is: by below the polyvalent alcohol grinding aid mother liquor control temperature to 60 preparing DEG C, according to formula rate, add water, vinylformic acid, ammonium sulfate reaction 20-40min;
Then add while stirring Sodium dodecylbenzene sulfonate, trolamine, stir 15min; Add again sucrose slag liquid, stir 10min;
After 150 order stainless steel sift impurity screenings, obtain product 1 again.
As preferred version, its raw material consists of: polyvalent alcohol grinding aid mother liquor 40-55%, vinylformic acid 0.2-0.5%, ammonium sulfate 5-10%, Sodium dodecylbenzene sulfonate 0.02-0.05%, trolamine 2-5%, sucrose slag liquid 1-5%, surplus is water, total amount 100%; Described per-cent is mass percent.
Embodiment 2 to embodiment 5:
Repeat the method for EXPERIMENTAL EXAMPLE 1 by each component concentration of specifying in following table 1, the high-moisture mixed material cement grinding aid product 2 that obtains respectively different components content is to product 5:
Table 1
| Component (%) | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 |
| Polyvalent alcohol grinding aid mother liquor | 40 | 45 | 50 | 40 | 55 |
| Vinylformic acid | 0.01 | 0.1 | 0.2 | 0.4 | 0.5 |
| Ammonium sulfate | 1 | 3 | 5 | 8 | 10 |
| Sodium dodecylbenzene sulfonate | 0.02 | 0.03 | 0.04 | 0.02 | 0.05 |
| Trolamine | 2 | 3 | 4 | 5 | 2 |
| Sucrose slag liquid | 1 | 2 | 3 | 4 | 5 |
| Obtain | Product 1 | Product 2 | Product 3 | Product 4 | Product 5 |
By the high-moisture mixed material cement grinding aid product making in embodiment 1 to embodiment 5, be cement quality at addition content 0.03%, the contrast experiment and the blank assay that add high-moisture mixed material cement grinding aid and common grinding aid, experimental result is as shown in table 2:
Table 2
Can find out, the high-moisture mixed material cement grinding aid that the invention provides and prepare, compared with common grinding aid, have the following advantages: 1) diminishing: under in same proportioning, with slump condition, the water-reducing rate of this setting accelerator of admixture increases with the increase of volume, volume be cement consumption 0.03% time, water-reducing rate can reach 10% left and right; 2) unit-hour output increases: under same proportioning, this high-moisture of admixture mixed material cement grinding aid unit-hour output increases 14%-16%.3) 45um tails over: under same proportioning, this high-moisture of admixture blended material grinding aid 45um tails over compared with benchmark and tails over and reduce 36%-38%.3, early strong: under in same proportioning, with slump condition, this high-moisture of admixture mixed material cement grinding aid, the presetting period shortens 100min left and right, and final setting time shortens 120min left and right, within 3 days, strength of cement improves 20-25%, more than within 28 days, strength of cement improves 15-20%; High-moisture mixed material cement grinding aid provided by the invention, impervious strong, weather resistance is stable, ensures construction quality the work-ing life that is conducive to extend concrete member; There is significantly short solidifying and enhancement to being mixed with the cement of slag, phosphorus slag, slag; Efficiently solve different blended materials as problems such as the cement mill unit-hour output that high-moisture flyash, grain slag, coal gangue, manganese slag, phosphorus slag etc. cause declines, full mill, each age strength reductions, solved yielding poorly of causing because blended material moisture is high, cost is high, the problem that the utilization of part blended material is restricted.
Below disclose the present invention with preferred embodiment, so it is not intended to limiting the invention, and all employings are equal to replaces or the technical scheme that obtains of equivalent transformation mode, within all dropping on protection scope of the present invention.
Claims (5)
1. a high-moisture mixed material cement grinding aid, its raw material consists of: polyvalent alcohol grinding aid mother liquor 40-55%, vinylformic acid 0.01-0.5 %, ammonium sulfate 1-10%, Sodium dodecylbenzene sulfonate 0.02-0.05%, trolamine 2-5%, sucrose slag liquid 1-5%, surplus is water, total amount 100%; Described per-cent is mass percent.
2. high-moisture mixed material cement grinding aid according to claim 1, it is characterized in that: the preparation method of described polyvalent alcohol grinding aid mother liquor is as follows: in reactor, add 1 part of 2 parts of maleic anhydride, polyvalent alcohol to mix, in 90-110 DEG C of reaction 2-4h, synthesize to obtain polyvalent alcohol grinding aid mother liquor.
3. high-moisture mixed material cement grinding aid according to claim 2, it is characterized in that: the preparation method of described polyvalent alcohol grinding aid mother liquor is as follows: in reactor, add 1 part of 2 parts of maleic anhydride, polyvalent alcohol to mix, in 100 DEG C of reaction 3h, synthesize to obtain polyvalent alcohol grinding aid mother liquor.
4. high-moisture mixed material cement grinding aid according to claim 1, it is characterized in that: its raw material consists of: polyvalent alcohol grinding aid mother liquor 40-55%, vinylformic acid 0.2-0.5 %, ammonium sulfate 5-10%, Sodium dodecylbenzene sulfonate 0.02-0.05%, trolamine 2-5%, sucrose slag liquid 1-5%, surplus is water, total amount 100%; Described per-cent is mass percent.
5. a preparation method for the high-moisture mixed material cement grinding aid as described in claim 1 to 4 any one, the steps include:
1), below polyvalent alcohol grinding aid mother liquor control temperature to 60 DEG C, according to formula rate, add water, vinylformic acid, ammonium sulfate reaction 20-40min;
2) then add while stirring Sodium dodecylbenzene sulfonate, trolamine, stir; Add again sucrose slag liquid, stir;
3), again after 150 order stainless steel sift impurity screenings, obtain high-moisture mixed material cement grinding aid.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105669909A (en) * | 2015-12-28 | 2016-06-15 | 江苏中铁奥莱特新材料有限公司 | Preparation method of enhanced polyacrylamide-series cement grinding aid |
| CN106477954A (en) * | 2016-09-12 | 2017-03-08 | 广西大学 | A kind of cement grinding aid and preparation method thereof |
| CN108996944A (en) * | 2018-09-29 | 2018-12-14 | 浙江长盈建材科技有限公司 | Miberal powder grinding aid of high fluidity and preparation method thereof |
| CN113003981A (en) * | 2021-04-19 | 2021-06-22 | 武汉三源特种建材有限责任公司 | Superfine composite mineral admixture grinding aid and preparation method thereof |
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| CN1346812A (en) * | 2001-08-14 | 2002-05-01 | 刘长林 | Grinding aid for cement |
| CN101209908A (en) * | 2007-12-25 | 2008-07-02 | 大连理工大学 | Liquid high-efficiency cement grinding aid reinforcing agent and producing method thereof |
| CN101386492A (en) * | 2008-10-17 | 2009-03-18 | 南京永能建材技术有限公司 | Liquid cement grinding aid and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1346812A (en) * | 2001-08-14 | 2002-05-01 | 刘长林 | Grinding aid for cement |
| CN101209908A (en) * | 2007-12-25 | 2008-07-02 | 大连理工大学 | Liquid high-efficiency cement grinding aid reinforcing agent and producing method thereof |
| CN101386492A (en) * | 2008-10-17 | 2009-03-18 | 南京永能建材技术有限公司 | Liquid cement grinding aid and preparation method thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105669909A (en) * | 2015-12-28 | 2016-06-15 | 江苏中铁奥莱特新材料有限公司 | Preparation method of enhanced polyacrylamide-series cement grinding aid |
| CN105669909B (en) * | 2015-12-28 | 2018-01-19 | 江苏中铁奥莱特新材料股份有限公司 | A kind of preparation method of enhanced polypropylene acid amides series cement grinding aid |
| CN106477954A (en) * | 2016-09-12 | 2017-03-08 | 广西大学 | A kind of cement grinding aid and preparation method thereof |
| CN108996944A (en) * | 2018-09-29 | 2018-12-14 | 浙江长盈建材科技有限公司 | Miberal powder grinding aid of high fluidity and preparation method thereof |
| CN113003981A (en) * | 2021-04-19 | 2021-06-22 | 武汉三源特种建材有限责任公司 | Superfine composite mineral admixture grinding aid and preparation method thereof |
| CN113003981B (en) * | 2021-04-19 | 2022-03-22 | 武汉三源特种建材有限责任公司 | Superfine composite mineral admixture grinding aid and preparation method thereof |
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| CN104045257B (en) | 2015-11-18 |
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Denomination of invention: High moisture mixed material cement grinding aid and its preparation method Effective date of registration: 20231219 Granted publication date: 20151118 Pledgee: Bank of China Limited by Share Ltd. Nanjing Jiangning branch Pledgor: NANJING YONGNENG MATERIALS Co.,Ltd. Registration number: Y2023980072579 |
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