CN103172293A - Technical formula and production technology for preparing naphthalene-based superplasticizer - Google Patents
Technical formula and production technology for preparing naphthalene-based superplasticizer Download PDFInfo
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- CN103172293A CN103172293A CN2013100973497A CN201310097349A CN103172293A CN 103172293 A CN103172293 A CN 103172293A CN 2013100973497 A CN2013100973497 A CN 2013100973497A CN 201310097349 A CN201310097349 A CN 201310097349A CN 103172293 A CN103172293 A CN 103172293A
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Abstract
The invention relates to a technical formula and a production technology for preparing a naphthalene-based superplasticizer. The naphthalene-based superplasticizer consists of 25-45% of concentrated sulfuric acid, 10-35% of industrial naphthalene, 5-10% of industrial byproduct sodium sulfonate, 6-10% of formaldehyde and 7-10% of water. The production technology comprises the following steps of: adding the industrial naphthalene into a reaction kettle, and melting; electrically heating the steam, and increasing temperature to 160 DEG C; dropwise adding concentrated sulfuric acid quickly in 40 minutes; controlling the temperature at 175-180 DEG C at the end of the dropwise addition; carrying out heat preservation and reacting for 45 minutes; adding the sodium naphthalene sulfonate, and reacting for 30 minutes; reducing the temperature to 130 DEG C; adding the water, reacting for 30 minutes, and reducing the temperature to 115 DEG C by water circulation; dropwise adding the formaldehyde quickly in 1.5 hours; and adding caustic soda flakes at normal temperature to adjust the pH value to 8-9. The technical formula and the production technology provided by the invention have the advantages that the naphthalene-based superplasticizer is prepared without any treatment on the dinaphthol industrial byproduct waste sodium naphthalene sulfonate, the energy is saved, the environment is protected, and sustainable development is realized.
Description
Technical field
The present invention relates to the chemical building material technical field, specifically a kind of technical formula and production technique for preparing naphthalene series high-efficiency water-reducing agent.
Background technology
Sodium naphthalene sulfonate (Naphthalene sulfonate) series product are a kind of superior performance, broad-spectrum chemical assistant, are widely used in printing and dyeing, building, agricultural chemicals, rubber, plating, coating and other industry and daily life.The main component of naphthalene series high-efficiency water-reducing agent is basic naphthalenesulfonate formaldehyde condensation compound, is a kind of non-research work of air entrained type water reducer.Its form is pulvis and liquid.This agent is good to various cement adaptabilities, improve concrete operability, be widely used in the engineerings such as highway, railway, bridge, tunnel, power station, dam, Highrise buildings, to the effect of reinforcing bar non-corroding, can improve the physical and mechanical property of concrete comprehensively, can save cement 10%-20% when keeping intensity identical.
Government always encourages relevant enterprise to turn waste into wealth, and realizes the waste resource recycling, and for chemical industry; industrial by-product waste recycling is produced other chemical article; resource reutilization not only can be realized, and the environmental protection cost of offal treatment, protection of the environment can be reduced.
Contain a large amount of moisture in the industrial by-product sodium naphthalene sulfonate, add membership and cause hydrolysis in advance before the naphthalene water reducer synthesis technique, affect quality product, and material acidity when its hydrolysis can not only effectively be improved sulfonation afterwards, naphthalenesulfonate is fully activated, can also promote the carrying out of condensation reaction.Therefore, if can utilize bisnaphthol industrial by-product waste sodium naphthalene sulfonate to prepare naphthalene series high-efficiency water-reducing agent, just can not only save energy, turn waste into wealth, and can protection of the environment, realize Sustainable development.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of and need not to do any processing and just can utilize bisnaphthol industrial by-product waste sodium naphthalene sulfonate to prepare technical formula and the production technique of naphthalene series high-efficiency water-reducing agent.
Technical problem to be solved by this invention realizes by the following technical solutions,
A kind of technical formula for preparing naphthalene series high-efficiency water-reducing agent is comprised of the vitriol oil, NAPTHALENE FLAKES. (INDUSTRIAL GRADE）, industrial by-product sodium sulfonate, formaldehyde and water, and the shared weight percent of each component is,
A kind of production technique for preparing naphthalene series high-efficiency water-reducing agent, production technique is as follows:
1) NAPTHALENE FLAKES. (INDUSTRIAL GRADE） is dropped into reactor, fusing, the water vapour electrically heated is warmed up to 160 ℃;
2) add the vitriol oil, at the uniform velocity dropwise in 40 minutes, when dropwising, temperature is controlled at 175-180 ℃;
3) insulation reaction is 45 minutes, adds sodium naphthalene sulfonate, reacts 30 minutes;
4) cool to 130 ℃, add entry, reacted 30 minutes, cooling water circulation to 115 ℃;
5) drip formaldehyde, at the uniform velocity dropwise in 1.5 hours;
6) at normal temperatures, add sheet alkali, regulate pH value to 8-9.
The invention has the beneficial effects as follows: the present invention can be prepared into naphthalene series high-efficiency water-reducing agent with bisnaphthol industrial by-product waste sodium naphthalene sulfonate in the situation that need not to do any processing, save energy, reduces production costs; Turn waste into wealth, on the recycling of industrial chemicals, realize the recycling of technique by-product; Environmental protection realizes Sustainable development, processes trade waste and rationally utilizes, for very large space has been created in development and the existence of enterprise.
Embodiment
For technique means, creation characteristic that the present invention is realized, reach purpose and effect is easy to understand, the below further sets forth the present invention.
Embodiment 1
A kind of technical formula for preparing naphthalene series high-efficiency water-reducing agent is comprised of the vitriol oil, NAPTHALENE FLAKES. (INDUSTRIAL GRADE）, industrial by-product sodium sulfonate, formaldehyde and water, and the shared weight percent of each component is,
A kind of production technique for preparing naphthalene series high-efficiency water-reducing agent, production technique is as follows:
1) NAPTHALENE FLAKES. (INDUSTRIAL GRADE） is dropped into reactor, fusing, the water vapour electrically heated is warmed up to 160 ℃;
2) add the vitriol oil, at the uniform velocity dropwise in 40 minutes, when dropwising, temperature is controlled at 175-180 ℃;
3) insulation reaction is 45 minutes, adds sodium naphthalene sulfonate, reacts 30 minutes;
4) cool to 130 ℃, add entry, reacted 30 minutes, cooling water circulation to 115 ℃;
5) drip formaldehyde, at the uniform velocity dropwise in 1.5 hours;
6) at normal temperatures, add sheet alkali, regulate pH value to 8-9.
Embodiment 2
A kind of technical formula for preparing naphthalene series high-efficiency water-reducing agent is comprised of the vitriol oil, NAPTHALENE FLAKES. (INDUSTRIAL GRADE）, industrial by-product sodium sulfonate, formaldehyde and water, and the shared weight percent of each component is,
A kind of production technique for preparing naphthalene series high-efficiency water-reducing agent, production technique is as follows:
1) NAPTHALENE FLAKES. (INDUSTRIAL GRADE） is dropped into reactor, fusing, the water vapour electrically heated is warmed up to 160 ℃;
2) add the vitriol oil, at the uniform velocity dropwise in 40 minutes, when dropwising, temperature is controlled at 175-180 ℃;
3) insulation reaction is 45 minutes, adds sodium naphthalene sulfonate, reacts 30 minutes;
4) cool to 130 ℃, add entry, reacted 30 minutes, cooling water circulation to 115 ℃;
5) drip formaldehyde, at the uniform velocity dropwise in 1.5 hours;
6) at normal temperatures, add sheet alkali, regulate pH value to 8-9.
Above demonstration and described ultimate principle of the present invention, principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification sheets is principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (2)
1. technical formula for preparing naphthalene series high-efficiency water-reducing agent is characterized in that: be comprised of the vitriol oil, NAPTHALENE FLAKES. (INDUSTRIAL GRADE）, industrial by-product sodium sulfonate, formaldehyde and water, the shared weight percent of each component is,
2. production technique for preparing naphthalene series high-efficiency water-reducing agent, it is characterized in that: production technique is as follows:
1) NAPTHALENE FLAKES. (INDUSTRIAL GRADE） is dropped into reactor, fusing, the water vapour electrically heated is warmed up to 160 ℃;
2) add the vitriol oil, at the uniform velocity dropwise in 40 minutes, when dropwising, temperature is controlled at 175-180 ℃;
3) insulation reaction is 45 minutes, adds sodium naphthalene sulfonate, reacts 30 minutes;
4) cool to 130 ℃, add entry, reacted 30 minutes, cooling water circulation to 115 ℃;
5) drip formaldehyde, at the uniform velocity dropwise in 1.5 hours;
6) at normal temperatures, add sheet alkali, regulate pH value to 8-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2013100973497A CN103172293A (en) | 2013-03-25 | 2013-03-25 | Technical formula and production technology for preparing naphthalene-based superplasticizer |
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| CN2013100973497A CN103172293A (en) | 2013-03-25 | 2013-03-25 | Technical formula and production technology for preparing naphthalene-based superplasticizer |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104844053A (en) * | 2015-04-28 | 2015-08-19 | 萧县沃德化工科技有限公司 | Modified sulfamate efficient water reducer and preparation method thereof |
| CN107573471A (en) * | 2017-08-31 | 2018-01-12 | 浙江吉盛化学建材有限公司 | A kind of production technology of FDN high efficiency water reducing agents |
| CN108484852A (en) * | 2018-05-18 | 2018-09-04 | 萧县沃德化工科技有限公司 | A kind of modified naphthalene series water-reducing agent of useless residue in the production process containing phenols |
| CN112125564A (en) * | 2020-06-15 | 2020-12-25 | 安徽鑫固环保股份有限公司 | Naphthalene water reducer |
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| KR940005540B1 (en) * | 1991-09-16 | 1994-06-20 | 강인규 | Process for producing receding of water agent of mortar and concrete |
| CN101497506A (en) * | 2009-03-20 | 2009-08-05 | 武汉市联合石油化工有限责任公司 | Process for preparing modified naphthalene series water reducing agent |
| CN102584086A (en) * | 2012-01-16 | 2012-07-18 | 天津市飞龙砼外加剂有限公司 | Preparation method for synthetizing high efficiency water reducing agent by 2-naphthol waste water |
| RU2011113246A (en) * | 2011-04-07 | 2012-10-20 | Открытое акционерное общество "Полипласт" (ОАО "Полипласт") (RU) | NO WASTE METHOD FOR PRODUCING POLYMETHYLENE PHTHALINE SULPHONATES WITH ADJUSTABLE LOW SODIUM SULPHATE CONTENT |
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- 2013-03-25 CN CN2013100973497A patent/CN103172293A/en active Pending
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| KR940005540B1 (en) * | 1991-09-16 | 1994-06-20 | 강인규 | Process for producing receding of water agent of mortar and concrete |
| CN101497506A (en) * | 2009-03-20 | 2009-08-05 | 武汉市联合石油化工有限责任公司 | Process for preparing modified naphthalene series water reducing agent |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104844053A (en) * | 2015-04-28 | 2015-08-19 | 萧县沃德化工科技有限公司 | Modified sulfamate efficient water reducer and preparation method thereof |
| CN107573471A (en) * | 2017-08-31 | 2018-01-12 | 浙江吉盛化学建材有限公司 | A kind of production technology of FDN high efficiency water reducing agents |
| CN107573471B (en) * | 2017-08-31 | 2019-10-29 | 浙江吉盛化学建材有限公司 | A kind of production technology of FDN high efficiency water reducing agent |
| CN108484852A (en) * | 2018-05-18 | 2018-09-04 | 萧县沃德化工科技有限公司 | A kind of modified naphthalene series water-reducing agent of useless residue in the production process containing phenols |
| CN112125564A (en) * | 2020-06-15 | 2020-12-25 | 安徽鑫固环保股份有限公司 | Naphthalene water reducer |
| CN112125564B (en) * | 2020-06-15 | 2022-10-04 | 安徽鑫固环保股份有限公司 | Naphthalene water reducer |
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Application publication date: 20130626 |