CN103601657B - CLT acid factory effluent stoste prepares method and the compound product of high efficiency water reducing agent monomer - Google Patents
CLT acid factory effluent stoste prepares method and the compound product of high efficiency water reducing agent monomer Download PDFInfo
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Abstract
The invention discloses a kind of method that CLT acid factory effluent stoste prepares high efficiency water reducing agent monomer, comprising: joined by solubility promoter in the CLT acid factory effluent stoste containing 2B sodium salt and isomer thereof, holding temperature is 90 ~ 100 DEG C, obtains homogeneous phase aqueous solution; Add phenolic compound, the pH value of regulation system is alkalescence; Add aldehyde cpd, control temperature is 90 ~ 100 DEG C, reacts completely and obtains high efficiency water reducing agent monomer.Present invention also offers a kind of compound highly effective water reducer monomer.The present invention directly uses the CLT acid factory effluent stoste containing 2B sodium salt isomer impurities, and need not remove 2B sodium salt isomer impurities; Ensure to participate in preparing in the CLT acid factory effluent of high efficiency water reducing agent monomer containing whole CLT acid isomer, thus finally solve 2B sodium salt isomer impurities this problem difficult filtered out.
Description
Technical field
The invention belongs to high efficiency water reducing agent production technical field, specifically relate to method and compound product that a kind of CLT acid factory effluent stoste prepares high efficiency water reducing agent monomer.
Background technology
Concrete is the material of construction that usage quantity is maximum so far.Early 1930s, colonial uses sulfonated lignin to improve concrete workability as cement water reducing agent, concrete is changed to liquid concrete by low slump concrete, has from then on pulled open the prelude using admixture in concrete.The application of admixture in concrete, fairly obvious effect is created to the concrete workability of raising, intensity, weather resistance and reduction production cost, become one of requisite component of modern concrete, cement water reducing agent is then a kind of admixture that application surface is the widest, usage quantity is maximum.Japan and Germany succeed in developing beta-naphthalenesulfonic-acid salt formaldehyde condensation products and sulfonated melamine resin is the high range water reducing agent for cement of main component in succession respectively the sixties in 20th century, and the application of high range water reducing agent for cement in concrete further improves concrete performance.Sulfonated lignin, beta-naphthalenesulfonic-acid salt formaldehyde condensation products, sulfonated melamine resin use the most general high range water reducing agent for cement at present, and their water-reducing rates are higher, but slump-loss is larger.Along with science and technology and the development of producing, various overlength, superelevation, ultra-large type concrete structures and the concrete structure used under harsh and unforgiving environments constantly propose higher requirement to concrete quality, serviceability is high, volume stability good, the Development of HPC of the feature such as high strength and high-durability to possessing to impel concrete technology, and these features also become 21 century concrete developing direction.The appearance of high performance concrete is had higher requirement to concrete admixture, and having large and gradual loss the is little high range water reducing agent for cement of high water reducing rate, concrete slump good in low water-cement ratio current downflow becomes the target that scientific research and engineering technical personnel research and develop.
The high range water reducing agent for cement be at present among research and development mainly contains aminosulfonic acid series high-effective cement water reducing agent (being called for short ASP), fatty family high range water reducing agent for cement (being called for short SAF) and polycarboxylic acids high efficiency cement water reducing agent (being called for short PCE).They are the efficient or even high-performance cement water reducers grown up after being the high range water reducing agent for cement of representative continue beta-naphthalenesulfonic-acid salt formaldehyde condensation system high range water reducing agent for cement, sulfonated melamine resin system high range water reducing agent for cement.
One, the performance characteristics of aminosulfonic acid series high-effective cement water reducing agent:
Aminosulfonic acid series high-effective cement water reducing agent production technique is simple, is one of the most rising current efficient or high-performance cement water reducer both at home and abroad.
Aminosulfonic acid series high-effective cement water reducing agent is as main raw material by aniline sulfonic acid salt compounds, phenolic compound and aldehyde compound, obtaining a kind of macromolecular chain containing hydrophilic sulfonic acid groups, amino, hydroxyl by condensation, is a kind of novel anion surfactant.Aminosulfonic acid series high-effective cement water reducing agent is as concrete high-efficiency cement water reducing agent, its distinguishing feature can reach high water reducing rate, high workability, high slump when miserable amount is very little, concrete slump loss can be controlled well, can transport within longer for some time and not lose the slump simultaneously, being particularly suitable for pump concrete, is the rising high range water reducing agent for cement of a class.
The process of the isomeric by-products two, in pigment dyestuff intermediate CLT acid production process, Utilizing question:
The chloro-3-phenylmethylamine of CLT acid formal name used at school 6--4-sulfonic acid, it is an important intermediate in organic red pigment synthesis, this CLT acid production process route generally will experience toluene sulfonation, chlorination, nitrated, hydrogenating reduction, the operations such as neutralization, extraction certified products, production process route is very long, relates to again and uses strong acid, highly basic in a large number.According to current production process route, in its production process, after the hydrogenation reduction stage completes, the CLT acid isomeric by-products of nearly 1/4 can be produced, this CLT acid isomeric by-products component is more complicated, if be isolated not in time, the product purity that will affect the chloro-3-phenylmethylamine of certified products 6--4-sulfonic acid and the coloured light of organic red pigment be later synthesized.These separate nearly 1/4 CLT acid isomeric by-products cost when carrying out chemical treatment very high, so how to carry out these CLT acid isomeric by-products of disposal and utilization, make it the raw material become in industrial production, be a puzzlement researchist's difficult problem always.
According to expert's dissection and analysis, in these CLT acid isomeric by-products, at least containing 6 kinds of CLT acid isomer, wherein there is a kind of CLT acid isomer of structure, chemical name is 2-amino-3-chloro-4-toluene sulfonic acide sodium salt (hereinafter referred to as 2B sodium salt), accounts for 1/4 of CLT acid isomeric by-products total amount.The solubility property of its 2B sodium salt isomer is very poor.2B sodium salt isomer can be separated out in a large number along with the reduction of stoste temperature in CLT acid factory effluent stoste, and is just difficult to be dissolved in stoste once precipitation again.
Current factory is to these CLT acid isomeric by-products treatment processs generally: first room temperature leaves standstill CLT acid factory effluent stoste, after 2B sodium salt isomer impurities is separated out substantially, filter to isolate 2B sodium salt isomer impurities, the remaining CLT acid factory effluent removing 2B sodium salt isomer impurities is generally just given some producer producing cement water reducing agent and is used up as the stopping composition in its product; And the very poor 2B sodium salt isomer impurities of solubility property can only carry out burning disposal by having the process unit of qualification, not only processing cost is very high, and produces secondary pollution.Therefore how disposal and utilization 2B sodium salt isomer impurities, the major issue that the relevant producer that the research work of turning waste into wealth has become production CLT acid must consider.
Zhejiang Qinyan Chemical Co., Ltd. and Shanghai Gujia Chemical Technology Co., Ltd. once during 2012 special collaboration carried out the trial utilizing CLT acid factory effluent stoste to prepare high efficiency water reducing agent, make some progress in sample sintetics and application performance test thereof, stepped a gratifying step.But find in triturating, deposit in case if any 2B sodium salt isomer precipitate in CLT acid factory effluent stoste, the application performance of the sample product be synthesized can be had a strong impact on, therefore must leave standstill at 40-45 DEG C and filter.Thus Shanghai Gujia Chemical Technology Co., Ltd. application publication number be CN102731011A, name of patent application is in the patent documentation content of " high efficiency water reducing agent and production technique thereof that CLT acid factory effluent is Material synthesis ", in embodiment 1 [0033] 11) and embodiment 2 [0039] 21) on dated especially: CLT acid factory effluent filters remove portion impurity at 40-45 DEG C.
Simultaneously, find further in triturating, after CLT acid factory effluent filters removal 2B sodium salt isomer impurities at 40-45 DEG C, also can not ensure to filter the CLT acid factory effluent after removing 2B sodium salt isomer impurities not at all containing 2B sodium salt isomer impurities, especially the weather that temperature Change is very large is run into, CLT acid factory effluent sometimes after elimination removes 2B sodium salt isomer impurities is along with the further reduction of stoste temperature, still have a certain amount of 2B sodium salt isomer impurities to separate out, the application performance of the high efficiency water reducing agent product produced will be had a strong impact on like this, cause the quality of high efficiency water reducing agent product unstable.
In view of application publication number be CN102731011A, name of patent application is that the patent documentation of " high efficiency water reducing agent and production technique thereof that CLT acid factory effluent is Material synthesis " explicitly calls for CLT acid factory effluent, require that CLT acid factory effluent could be used after 40-45 DEG C of mistake filters 2B sodium salt isomer impurities, so still, a large amount of 2B sodium salt isomer impurities can be produced, and 2B sodium salt isomer impurities can only process by burning, not only processing cost is very high, and produces secondary pollution.Thus, how directly to use the CLT acid factory effluent stoste containing 2B sodium salt isomer impurities to carry out comprehensive exploitation and go out related products as cement water reducing agent emphasis of the present invention just.
Summary of the invention
The invention provides one and need not remove 2-amino-3-chloro-4-toluene sulfonic acide sodium salt (hereinafter referred to as 2B sodium salt) isomer impurities, the CLT acid factory effluent stoste that direct use contains 2B sodium salt isomer impurities prepares high efficiency water reducing agent method and preparation method thereof, the method preparation technology is simpler, production cost is lower, more mainly fundamentally solve 2B sodium salt isomer impurities and be difficult to process, cause the problem of secondary pollution; And the method does not need additionally to add auxiliary agent etc. after condensation completes, and reduces the preparation cost of high efficiency water reducing agent further.
CLT acid factory effluent stoste prepares a method for high efficiency water reducing agent monomer, comprising:
(1) joined by solubility promoter in the CLT acid factory effluent stoste containing 2-amino-3-chloro-4-toluene sulfonic acide sodium salt (2B sodium salt) and isomer thereof, holding temperature is 90 ~ 100 DEG C, obtains homogeneous phase aqueous solution; Described solubility promoter is one or more in ethylene glycol, glycol ether, glycerine, Liovatin S, reservehao S, Lignin Dispersants, naphthalene system dispersion agent (as dispersion agent NNO, Dispersant MF);
(2) add phenolic compound in the homogeneous phase aqueous solution obtained to step (1), the pH value of regulation system is alkalescence;
(3) add aldehyde cpd, control temperature is 90 ~ 100 DEG C, reacts completely and obtains high efficiency water reducing agent monomer.
In step (1), the mixture containing the compound that is shown below in described CLT acid factory effluent stoste:
In formula (1) ~ (6), compound (2) is 2-amino-3-chloro-4-toluene sulfonic acide sodium salt (hereinafter referred to as 2B sodium salt).The solid content of described CLT acid factory effluent stoste is 20 ~ 25%, and wherein the weight percent content of 2-amino-3-chloro-4-toluene sulfonic acide sodium salt is 3 ~ 7%.
In step (1), the weight that described solubility promoter adds is 1 ~ 5% of CLT acid factory effluent stoste gross weight; One or more more preferably in ethylene glycol, Liovatin S, naphthalene system dispersion agent of described solubility promoter.In step (1), select specific solubility promoter, holding temperature is 90 ~ 100 DEG C simultaneously, ensure that 2B sodium salt isomer impurities keeps relative stability in CLT acid factory effluent stoste and does not separate out, save filter operation, avoid secondary pollution.
In step (2), described phenolic compound comprises one or more in the compound such as phenol, ortho position cresols, position cresols, paracresol, naphthyl alcohol, 2-Naphthol.In the phenolic compound added and CLT acid factory effluent stoste, the mol ratio of 2-amino-3-chloro-4-toluene sulfonic acide sodium salt (2B sodium salt) and isomer total amount thereof is 1 ~ 4:1.In this step, the pH value of regulation system is the object of alkalescence is ensure that follow-up condensation reaction can be carried out smoothly, and prevent aldehyde cpd generation self-condensation, as preferably, described pH value is 7 ~ 13.
In step (3), described aldehyde cpd comprises one or more in the compounds such as formaldehyde, trioxymethylene, acetaldehyde, propionic aldehyde, butyraldehyde, valeral, furfural.In the aldehyde cpd added and CLT acid factory effluent stoste, the mol ratio of 2-amino-3-chloro-4-toluene sulfonic acide sodium salt (2B sodium salt) and isomer total amount thereof is 3.0 ~ 6:1.The time of this step condensation reaction is about 3 ~ 6 hours.
Obtain high efficiency water reducing agent monomer in this step generally can not directly use as high efficiency water reducing agent, need to carry out composite use with existing commercial aliphatic high-efficiency water reducing agent product, do not need to add extra additive and auxiliary agent etc.Obtaining high efficiency water reducing agent monomer can be liquid product, also Direct spraying drying can obtain solid phase prod.
Present invention also offers the high efficiency water reducing agent product obtained by above-mentioned high efficiency water reducing agent monomer complex, comprise the high efficiency water reducing agent monomer and aliphatic high-efficiency water reducing agent that are prepared by aforesaid method.
For saving drying operation, as preferably, described high efficiency water reducing agent monomer to be solid content be 20 ~ 40% high efficiency water reducing agent liquid product, select this product, need not other post-processing operation, condensation reaction is complete lowers the temperature.When utilizing aforesaid liquid product to carry out composite, described commercial aliphatic high-efficiency water reducing agent product to be solid content be 30 ~ 40% aliphatic high-efficiency water reducing agent liquid product, both composite weight ratios are 1:2 ~ 7.
The present invention directly uses the CLT acid factory effluent stoste containing 2B sodium salt isomer impurities produced in one CLT acid Production Flow Chart, and need not remove 2B sodium salt isomer impurities.Participate in preparing in the CLT acid factory effluent of high efficiency water reducing agent monomer containing whole CLT acid isomer, this is the major technological breakthrough preparing high efficiency water reducing agent by CLT acid factory effluent stoste, thus finally solves 2B sodium salt isomer impurities this problem difficult filtered out.
Compared with prior art, beneficial effect of the present invention is:
(1) the present invention solves a gordian technique difficult problem, 2B sodium salt isomer impurities need not be removed exactly, but directly use the CLT acid factory effluent stoste containing 2B sodium salt isomer impurities to prepare high efficiency water reducing agent, thus overcome need in the past to CLT acid factory effluent stoste need to carry out 40-45 DEG C filter remove 2B sodium salt isomer impurities after could by the technological difficulties used, and finally solve the 2B sodium salt isomer impurities filtered out and be difficult to process, cause this difficult problem of secondary pollution, really achieve the zero release of CLT acid factory effluent stoste.
(2) simultaneously, also make to eliminate in whole high efficiency water reducing agent production technique and need carry out 40-45 DEG C of this operation of filtration removal 2B sodium salt isomer impurities, thus save the production time, save production cost, improve labour productivity.
(3) the building-up process final stage in the present invention does not need to add the auxiliary agents such as urea yet, has both reduced production cost, and has also improved the quality of high efficiency water reducing agent.
Embodiment
Below in conjunction with specific embodiment, set forth the present invention further.Should be understood that these embodiments are only not used in for illustration of the present invention to limit the scope of the invention.In addition should be understood that those skilled in the art are as made various changes or modifications the present invention, and these equivalent form of values fall within the application's appended claims limited range equally after the content of having read the present invention's elaboration.
Embodiment 1
One, high efficiency water reducing agent production formula (according to listed as parts by weight)
Two, high efficiency water reducing agent production technique
1, in the reactor, the CLT acid factory effluent stoste directly added containing 2B sodium salt isomer impurities (is selected from the CLT acid waste water stoste that Zhejiang Qinyan Chemical Co., Ltd. produces, wherein solid content is 25%, wherein the mass percentage content of 2B sodium salt is 6.5%) 63.4 parts, add Liovatin S 1 part, maintain 90 DEG C; 2B sodium salt isomer is kept relative stability in CLT acid factory effluent stoste do not separate out, then add phenol 9.3 parts; Be 7-8 by the pH value of 30% caustic soda soln regulation system; 17.3 parts, 37% formaldehyde be added dropwise to again, temperature control to 95 DEG C; Dropwise, insulation back flow reaction 5 hours; Building-up process final stage does not need to add the auxiliary agents such as urea yet, and reaction terminates, and is cooled to room temperature; Obtain the high efficiency water reducing agent liquid monomer product that a kind of solid content is 30%, also spray-driedly can obtain a kind of high efficiency water reducing agent powdery monomer product.The structure of high efficiency water reducing agent monomer prepared by the present embodiment is as follows:
Wherein: R1 is Cl; R2 is CH
3; N=5-7, m=1.
2, by solid content be again 30% high efficiency water reducing agent liquid product and the solid content commonly used of market be 40% aliphatic high-efficiency water reducing agent liquid product (product purchased from Zhengzhou Zhan Hao Chemical Engineering Technology company limited can be adopted) obtain a kind of novel built high efficiency water reducing agent in the ratio of 1:3 is composite.
Embodiment 2
One, high efficiency water reducing agent production formula (according to listed as parts by weight)
Two, high efficiency water reducing agent production technique
1, in the reactor, the CLT acid factory effluent stoste 64.7 parts directly added containing 2B sodium salt isomer impurities (is selected from the CLT acid waste water stoste that Zhejiang Qinyan Chemical Co., Ltd. produces, wherein solid content is 20%, wherein the mass percentage content of 2B sodium salt is 5%), add Liovatin S 1 part, dispersion agent NNO 1 part, maintain 100 DEG C; 2B sodium salt isomer is kept relative stability in CLT acid factory effluent stoste do not separate out, then add cresols 8.5 parts (purchased from Nanjing Datang chemical industry limited liability company); Be 9-10 by the pH value of 30% caustic soda soln regulation system; 18 parts, 37% formaldehyde be added dropwise to again, temperature control to 100 DEG C; Dropwise, insulation back flow reaction 3 hours; Building-up process final stage does not need to add the auxiliary agents such as urea yet, and reaction terminates, and is cooled to room temperature; Obtain the high efficiency water reducing agent liquid monomer product that a kind of solid content is 30%, also spray-driedly can obtain a kind of high efficiency water reducing agent powdery monomer product.The structure of high efficiency water reducing agent monomer prepared by the present embodiment is as follows:
Wherein R is methyl, and R1, R2, m, n definition is with embodiment 1.
2, by solid content be again 30% high efficiency water reducing agent liquid product and the solid content commonly used of market be 38% aliphatic high-efficiency water reducing agent liquid product (the FAS aliphatic high-efficiency water reducing agent purchased from Xuzhou giant dragon novel material Science and Technology Ltd.) obtain a kind of novel built high efficiency water reducing agent in the ratio of 1:5 is composite.
Embodiment 3
One, high efficiency water reducing agent production formula (according to listed as parts by weight)
Two, high efficiency water reducing agent production technique
1, in the reactor, the CLT acid factory effluent stoste directly added containing 2B sodium salt isomer impurities (is selected from the CLT acid waste water stoste that Zhejiang Qinyan Chemical Co., Ltd. produces, wherein solid content is 25%, wherein the mass percentage content of 2B sodium salt is 6.5%) 65.1 parts, add dispersion agent NNO 2 parts, maintain 95 DEG C; 2B sodium salt isomer is kept relative stability in CLT acid factory effluent stoste do not separate out, then add paracresol 7.6 parts; Be 7-8 by the pH value of 30% caustic soda soln regulation system; 15.2 parts, 40% acetaldehyde be added dropwise to again, temperature control to 95 DEG C; Dropwise, insulation back flow reaction 4 hours; Building-up process final stage does not need to add the auxiliary agents such as urea yet, and reaction terminates, and is cooled to room temperature; Obtain the high efficiency water reducing agent liquid product that a kind of solid content is 35%, spray-driedly obtain a kind of high efficiency water reducing agent powder-like product monomer.
The structure of high efficiency water reducing agent monomer prepared by the present embodiment is as follows:
R1, R2, m, n definition is with embodiment 1.
2, again the aliphatic high-efficiency water reducing agent liquid product (can adopt the FAS aliphatic high-efficiency water reducing agent-powder product purchased from Xuzhou giant dragon novel material Science and Technology Ltd.) that high efficiency water reducing agent powder-like product monomer product and market are commonly used is obtained a kind of novel built high efficiency water reducing agent in the ratio of 1:4 is composite.
Embodiment 4
One, high efficiency water reducing agent production formula (according to listed as parts by weight)
Two, high efficiency water reducing agent production technique
1, in the reactor, the CLT acid factory effluent stoste directly added containing 2B sodium salt isomer impurities (is selected from the CLT acid waste water stoste that Zhejiang Qinyan Chemical Co., Ltd. produces, wherein solid content is 25%, wherein the mass percentage content of 2B sodium salt is 6.5%) 63.4 parts, add ethylene glycol 2.4 parts, maintain 100 DEG C; 2B sodium salt isomer is kept relative stability in CLT acid factory effluent stoste do not separate out, 8.0 parts, position cresols between then adding; Be 8-10 by the pH value of 30% caustic soda soln regulation system; 17.3 parts, 37% formaldehyde be added dropwise to again, temperature control to 95 DEG C; Dropwise, insulation back flow reaction 5 hours; Building-up process final stage does not need to add the auxiliary agents such as urea yet, and reaction terminates, and is cooled to room temperature; Obtain the high efficiency water reducing agent liquid monomer product that a kind of solid content is 35%, also spray-driedly can obtain a kind of high efficiency water reducing agent powdery monomer product.The structure of high efficiency water reducing agent monomer prepared by the present embodiment is as follows:
R1, R2, m, n definition is with embodiment 1.
2, by solid content be again 35% high efficiency water reducing agent liquid product and the solid content commonly used of market be 40% aliphatic high-efficiency water reducing agent liquid product (product purchased from Zhengzhou Zhan Hao Chemical Engineering Technology company limited can be adopted) obtain a kind of novel built high efficiency water reducing agent in the ratio of 1:4 is composite.
Product embodiment 1 ~ 4 obtained according to known national standard method (see table 1) carries out performance measurement, and measurement result is as shown in table 1:
The concrete application performance of the high efficiency water reducing agent below synthesized for the present invention:
Table 1
From the test result of table 1, the compound highly effective water reducer prepared by the present invention all meets the regulation of GB8076-2008 " concrete admixture ".Meanwhile, the 2B sodium salt isomer impurities of solution difficult, easily cause this difficult problem of secondary pollution.In preparation process, do not need filtration operation, do not need additionally to add auxiliary agent after preparation completes, reduce the preparation cost of water reducer.
Claims (9)
1. CLT acid factory effluent stoste prepares a method for high efficiency water reducing agent product, comprising:
(1) joined by solubility promoter in the CLT acid factory effluent stoste containing 2-amino-3-chloro-4-toluene sulfonic acide sodium salt and isomer thereof, holding temperature is 90 ~ 100 DEG C, obtains homogeneous phase aqueous solution; Described solubility promoter is one or more in ethylene glycol, glycol ether, glycerine, Liovatin S, reservehao S, Lignin Dispersants, naphthalene system dispersion agent; The weight that described solubility promoter adds is 1 ~ 5% of CLT acid factory effluent stoste gross weight;
(2) add phenolic compound in the homogeneous phase aqueous solution obtained to step (1), the pH value of regulation system is alkalescence;
(3) add aldehyde cpd, control temperature is 90 ~ 100 DEG C, reacts completely and obtains high efficiency water reducing agent product.
2. CLT acid factory effluent stoste according to claim 1 prepares the method for high efficiency water reducing agent product, it is characterized in that, containing, for example the mixture of compound following formula (1) ~ (6) Suo Shi in described CLT acid factory effluent stoste:
The solid content of described CLT acid factory effluent stoste is 20 ~ 25%, and wherein the weight percent content of 2-amino-3-chloro-4-toluene sulfonic acide sodium salt is 3 ~ 7%.
3. CLT acid factory effluent stoste according to claim 1 prepares the method for high efficiency water reducing agent product, it is characterized in that, described phenolic compound comprises one or more in phenol, ortho position cresols, a position cresols, paracresol, naphthyl alcohol, 2-Naphthol in compound.
4. CLT acid factory effluent stoste according to claim 1 prepares the method for high efficiency water reducing agent product, it is characterized in that, in the phenolic compound added and CLT acid factory effluent stoste, the mol ratio of 2-amino-3-chloro-4-toluene sulfonic acide sodium salt and isomer total amount thereof is 1 ~ 4:1.
5. CLT acid factory effluent stoste according to claim 1 prepares the method for high efficiency water reducing agent product, it is characterized in that, described aldehyde cpd comprises one or more in formaldehyde, trioxymethylene, acetaldehyde, propionic aldehyde, butyraldehyde, valeral, furfural in compound.
6. CLT acid factory effluent stoste according to claim 1 prepares the method for high efficiency water reducing agent product, it is characterized in that, in step (3), in the aldehyde cpd added and CLT acid factory effluent stoste, the mol ratio of 2-amino-3-chloro-4-toluene sulfonic acide sodium salt and isomer total amount thereof is 3 ~ 6:1; The time of reaction is 3 ~ 6 hours.
7. a compound highly effective water reducer product, is characterized in that, comprises high efficiency water reducing agent product and aliphatic high-efficiency water reducing agent, and described high efficiency water reducing agent product is prepared by the method described in the arbitrary claim of claim 1 ~ 6.
8. compound highly effective water reducer product according to claim 7, is characterized in that, described high efficiency water reducing agent product to be solid content be 20 ~ 40% high efficiency water reducing agent liquid product; Described aliphatic high-efficiency water reducing agent product to be solid content be 30 ~ 40% aliphatic high-efficiency water reducing agent liquid product.
9. compound highly effective water reducer product according to claim 8, is characterized in that, described high efficiency water reducing agent product and the composite weight ratio of aliphatic high-efficiency water reducing agent are 1:2 ~ 7.
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| CN104098289B (en) * | 2014-07-22 | 2016-02-17 | 同济大学 | A kind of collapse protection type concrete pump-feed agent of admixture CLT acid waste liquid |
| CN104496860B (en) * | 2014-11-21 | 2017-06-27 | 浙江秦燕科技股份有限公司 | A kind of reserve salt and its preparation method and application |
| CN106590013B (en) * | 2016-11-30 | 2019-03-05 | 浙江秦燕科技股份有限公司 | The isomer mixture of CLT acid prepares acid dyes original powder and product |
| CN106590012B (en) * | 2016-11-30 | 2019-03-12 | 浙江秦燕科技股份有限公司 | The isomer mixture of CLT acid prepares the method and product of acid dyes original powder |
| CN107417869A (en) * | 2017-04-19 | 2017-12-01 | 邵启明 | A kind of waste liquid modified high efficiency water reducing agent of sulfonic acid dye intermediate of 4 nitrophenol of 2 amino 6 |
| CN114195969A (en) * | 2021-11-19 | 2022-03-18 | 浙江秦燕科技股份有限公司 | Method for preparing sulfamate water reducer by using DCB waste liquid byproduct and sulfamate water reducer |
| CN114804441A (en) * | 2022-05-25 | 2022-07-29 | 济宁阳光煤化有限公司 | Environment-friendly CLT acid wastewater treatment method |
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| CN102731011A (en) * | 2012-06-13 | 2012-10-17 | 上海固佳化工科技有限公司 | High efficiency water reducer synthesized by using CLT acid production wastewater as raw material and production technology thereof |
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