CN108623500A - The preparation method and Preparation equipment of naphthalene water reducer - Google Patents
The preparation method and Preparation equipment of naphthalene water reducer Download PDFInfo
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- CN108623500A CN108623500A CN201810670886.9A CN201810670886A CN108623500A CN 108623500 A CN108623500 A CN 108623500A CN 201810670886 A CN201810670886 A CN 201810670886A CN 108623500 A CN108623500 A CN 108623500A
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C303/00—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides
- C07C303/32—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of salts of sulfonic acids
-
- 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
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/16—Sulfur-containing compounds
- C04B24/20—Sulfonated aromatic compounds
- C04B24/22—Condensation or polymerisation products thereof
- C04B24/226—Sulfonated naphtalene-formaldehyde condensation products
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C303/00—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides
- C07C303/02—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of sulfonic acids or halides thereof
- C07C303/04—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of sulfonic acids or halides thereof by substitution of hydrogen atoms by sulfo or halosulfonyl groups
- C07C303/06—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of sulfonic acids or halides thereof by substitution of hydrogen atoms by sulfo or halosulfonyl groups by reaction with sulfuric acid or sulfur trioxide
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C303/00—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides
- C07C303/02—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of sulfonic acids or halides thereof
- C07C303/22—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of sulfonic acids or halides thereof from sulfonic acids, by reactions not involving the formation of sulfo or halosulfonyl groups; from sulfonic halides by reactions not involving the formation of halosulfonyl groups
-
- 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
- C04B2103/30—Water reducers, plasticisers, air-entrainers, flow improvers
- C04B2103/302—Water reducers
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention discloses a kind of preparation methods of naphthalene water reducer, include the following steps：Sulfonation, hydrolysis, condensation and neutralization.The preparation method of naphthalene water reducer in the present invention using three kinds of different reaction kettles, without repeatedly heating up cooling to same reaction kettle, while extending the service life of reaction kettle, saves energy consumption in preparation process.The invention also discloses the Preparation equipments for preparing above-mentioned naphthalene water reducer.The equipment handles the exhaust gas generated in preparation process, reduces the discharge of pernicious gas, avoids environmental pollution.Meanwhile it being also provided with naphthalene vapour recovery room, it is cost-effective so that reclaiming is produced to recovery section naphthalene steam.
Description
Technical field
The present invention relates to the preparation method of the preparing technical field of naphthalene water reducer more particularly to a kind of naphthalene water reducer and
Preparation equipment.
Background technology
Naphthalene water reducer be one kind using crude naphthalene as raw material, it is sulfonated, hydrolysis, condensation, neutralize etc. technique productions it is efficient
Water-reducing agent, additive of the naphthalene water reducer as concrete, it is possible to reduce cement consumption improves concrete quality.Naphthalene system diminishing
Agent is China at present using most wide, the maximum main additive kind of dosage, with the trend that supply falls short of demand, more and more enterprises
Industry starts to produce naphthalene water reducer.
The existing method for preparing naphthalene water reducer is the same reaction kettle due to during preparation, using, and is caused
Make in preparation process, needs the heating multiple to same reaction kettle to cool down, whole preparation process energy consumption is big.
Invention content
To solve the problems in above-mentioned background technology, technical scheme is as follows：
The preparation method of naphthalene water reducer in the present invention, includes the following steps：
Step S1, sulfonation：Naphthalene is put into sulphonation kettle, steam is led into heat exchange jacket, it is 150 so that naphthalene heating is melted to temperature
DEG C~153 DEG C after, be at the uniform velocity added a concentration of 98% or more the concentrated sulfuric acid into sulphonation kettle, acid addition time is 90 minutes, continues to lead to
Steam heating and thermal insulation 90 minutes, holding temperature are 164 DEG C~168 DEG C, keep the temperature 2h~4h, obtain sulfonation material；
Step S2, it hydrolyzes：Sulfonation material obtained by step S1 is transferred to condensation kettle, cooling water is passed through into heat exchange jacket,
The room temperature dilution water of sulfonation material gross mass 10%~15% is added into sulfonation material simultaneously, then keeps the temperature 20 minutes, heat preservation
Temperature is 108 DEG C~120 DEG C；
Step S3, it is condensed：It is passed through cooling water into the heat exchange jacket of condensation kettle, makes the sulfonated bodies after the hydrolysis in condensation kettle
When the temperature of material drops to 100 DEG C~103 DEG C, 37% formalin is added into condensation kettle, it is 3 small to add the time of formalin
When, it is the half of first hour totalling amount to add the speed of formalin；Add remaining total amount in second hour 2/3rds；
Third hour adds remaining amount；After formalin is added, temperature is promoted to keeping the temperature after 105 DEG C~106 DEG C, controlled at
107 DEG C~109 DEG C, soaking time is not less than 3 hours, obtains condensation material；
Step S4, it neutralizes：Condensation material in step S3 is transferred to neutralization kettle, to the hydrogen-oxygen for neutralizing addition 50% in kettle
Change sodium solution, it is 7~8.5 to adjust and neutralize the pH value of solution in kettle, is cooled to 90 DEG C hereinafter, obtaining naphthalene water reducer.
The invention also discloses required Preparation equipments when being prepared using above-mentioned naphthalene water reducer preparation method, including sulphur
Change kettle, naphthalene vapour recovery room, level-one spray column and two level spray column；The sour tank of acid inlet connection of the sulphonation kettle, sulphonation kettle go out
Steam ports connects the air intake of level-one spray column, and the venthole of level-one spray column is connect with the air intake of two level spray column.
In a preferred embodiment, including condensation kettle, the input port of the condensation kettle are defeated with the sulphonation kettle
Outlet connects, and the formaldehyde inlet on the condensation kettle connects formaldehyde holding vessel, the venthole of the condensation kettle and the level-one
The air intake of spray column connects.
In a preferred embodiment, kettle and alkali liquid tank are neutralized including；The input port for neutralizing kettle and condensation kettle
Delivery outlet connection, the neutralization kettle also with fill out alkali liquid tank and connect by pipeline.
In a preferred embodiment, the level-one spray column and two level spray column include spray tower body, with
And water tank, packing layer, the first nozzle, receipts water packing layer, the second nozzle and the demisting being arranged from the bottom to top in spray column body
Layer, air outlet is offered at the top of the spray tower body, the spray tower body is circumferentially with air intake and access hole, the demisting
The circumferential position of layer is set into hole, and demisting layer bottom is equipped with pedestal, and the pedestal is equipped with several grids, on the pedestal
Demister is set, and the demister is divided into four parts along three parallel lines being equally spaced.
In a preferred embodiment, including heat exchange jacket, the heat exchange jacket are coated on the sulphonation kettle, condensation
Kettle and the outside for neutralizing kettle.
The preparation method and Preparation equipment of naphthalene water reducer in the present invention, compared with prior art, advantage is：
The preparation method of naphthalene water reducer in the present invention, using three kinds of different reaction kettles, is not necessarily in preparation process
It repeatedly heats up cooling to same reaction kettle, while extending the service life of reaction kettle, saves energy consumption.
Description of the drawings
Fig. 1 is the structural schematic diagram of the Preparation equipment of naphthalene water reducer in the present invention；
Fig. 2 is the structural schematic diagram of level-one spray column in the Preparation equipment of naphthalene water reducer in the present invention；
Fig. 3 is the structural schematic diagram of demister in the present invention.
Specific implementation mode
Below in conjunction with the attached drawing of the present invention, technical scheme of the present invention is clearly and completely described.Based on this hair
Embodiment in bright, the every other implementation that those of ordinary skill in the art are obtained without creative efforts
Example, shall fall within the protection scope of the present invention.
As described in Fig. 1 to Fig. 3, the Preparation equipment of naphthalene water reducer of the invention, including sulphonation kettle 1, naphthalene vapour recovery room 2,
Level-one spray column 3 and two level spray column 4；The sour tank 5 of acid inlet connection of sulphonation kettle 1, the venthole connection level-one spray of sulphonation kettle 1
The venthole of the air intake of tower 3, level-one spray column 3 is connect with the air intake of two level spray column 4.Further include condensation kettle 6, neutralize kettle
8 and alkali liquid tank 9, the input port of condensation kettle 6 connect with the delivery outlet of sulphonation kettle 1, formaldehyde inlet on condensation kettle 6 connects formaldehyde
The venthole of holding vessel 7, condensation kettle 6 is connect with the air intake of level-one spray column 3, neutralizes the defeated of input port and the condensation kettle 6 of kettle 8
Outlet connection, neutralize kettle 8 also with fill out alkali liquid tank 9 and connect by pipeline.Sulphonation kettle 1, condensation kettle 6 and in and the outside of kettle 8 set
Thermal jacket is replaced, heat exchange jacket is for leading to steam to sulphonation kettle 1, condensation kettle 6 and neutralizing the heating of kettle 8 or heat preservation.The naphthalene of the present invention
The Preparation equipment of based water reducer, in preparation process, using three kinds of different reaction kettles, without repeatedly heating up to same reaction kettle
Cooling while extending the service life of reaction kettle, saves energy consumption.The present invention is provided with two spray columns, in preparation process
The exhaust gas of generation is handled, and is reduced the discharge of pernicious gas, is avoided environmental pollution.The present invention is also provided with naphthalene vapour recovery room 2,
It is cost-effective so that reclaiming is produced to recovery section naphthalene steam.
The wherein structure of level-one spray column 3 and two level spray column 4 is as shown in Figures 2 and 3, includes spray tower body 3-1, with
And be arranged from the bottom to top in spray tower body 3-1 water tank 3-2, packing layer 3-3, the first nozzle 3-4, receive water packing layer 3-5,
Offer air outlet 3-8 at the top of second nozzle 3-6 and demisting layer 3-7, spray tower body 3-1, spray tower body 3-1 be circumferentially with into
The position of steam ports 3-9 and access hole 3-10, demisting layer 3-7 circumferential directions are set into hole 3-11, and the bottoms demisting layer 3-7 are equipped with pedestal 3-
12, pedestal 3-12 are equipped with several grids, and demister 3-13 is arranged on pedestal, and demister 3-13 is parallel along three to be equally spaced
Line is divided into four parts.It opens into hole 3-11, observes demister 3-13 fouling conditions, if necessary to clear up dirt, by demister
3-13 takes out cleaning and descaling from entering hole 3-11 in order per part.
Pedestal 3-12, pedestal 3-12 is arranged in level-one spray column 3 in the present invention and two level spray column 4 in demisting layer 3-7
Demister 3-13, is divided into four parts by upper setting demister 3-13, spray tower body 3-1 the positions demisting layer 3-7 install additional into
Hole 3-11 enters the size per part after hole 3-11 outer diameters separate not less than demister 3-13, facilitates demister 3-13 can be from
Extraction inside spray column, realization are safeguarded outside tower, save maintenance time.
In use, first crude naphthalene is added in sulphonation kettle 1, after being heated to assigned temperature, be added the concentrated sulfuric acid in sour tank 5 into
Row sulfonating reaction, the naphthalene steam generated in sulfonation process enter naphthalene vapour recovery room 2 by pipeline, and crystallization is solid naphthalene after natural cooling
Reclaiming is produced, other steam generated in sulfonation process enter level-one spray column 3 by pipeline and two level spray column 4 is inhaled
It receives.After the completion of sulfonation, sulfonation material is transferred in condensation kettle 6, to condensation kettle 6 plus water, is hydrolyzed, is passed through after the completion of hydrolysis
Formaldehyde is added into condensation kettle 6 for the formaldehyde inlet opened up on condensation kettle 6, carries out condensation reaction.It is generated in condensation reaction
Dangerous vapors can enter level-one spray column 3 and two level spray column 4 and be absorbed.After the completion of condensation reaction, condensation material is turned
It moves to and neutralizes in kettle 8, then the lye in alkali liquid tank 9 is added and is neutralized in kettle 8 so that material carries out neutralization reaction, and naphthalene is made
Based water reducer.
Embodiment 1
The invention also discloses the methods for preparing naphthalene water reducer using above-mentioned Preparation equipment, include the following steps：
Step S1, sulfonation：Naphthalene is put into sulphonation kettle, steam is led into heat exchange jacket, it is 150 so that naphthalene heating is melted to temperature
After DEG C, a concentration of 98% concentrated sulfuric acid is at the uniform velocity added into sulphonation kettle, acid addition time is 90 minutes, continues logical steam heating and thermal insulation
90 minutes, holding temperature was 164 DEG C, keeps the temperature 4h, obtains sulfonation material；
Step S2, it hydrolyzes：Sulfonation material obtained by step S1 is transferred to condensation kettle, cooling water is passed through into heat exchange jacket,
The room temperature dilution water of sulfonation material gross mass 10% is added into sulfonation material simultaneously, then keeps the temperature 20 minutes, holding temperature is
108℃；
Step S3, it is condensed：It is passed through cooling water into the heat exchange jacket of condensation kettle, makes the sulfonated bodies after the hydrolysis in condensation kettle
When the temperature of material drops to 100 DEG C, 37% formalin is added into condensation kettle, it is 3 hours to add the time of formalin, adds first
The speed of aldehyde solution is the half of first hour totalling amount；Add remaining total amount in second hour 2/3rds；Third is small
When add remaining amount；After formalin is added, temperature is promoted to keeping the temperature after 105 DEG C, controlled at 107 DEG C, when heat preservation
Between be not less than 3 hours, obtain condensation material；
Step S4, it neutralizes：Condensation material in step S3 is transferred to neutralization kettle, to the hydrogen-oxygen for neutralizing addition 50% in kettle
Change sodium solution, it is 7 to adjust and neutralize the pH value of solution in kettle, is cooled to 90 DEG C hereinafter, obtaining naphthalene water reducer.
It is prior art preparation naphthalene water reducer that the steam consumption during naphthalene water reducer is prepared using the above method
Steam consumption 50%.
Embodiment 2
Step S1, sulfonation：Naphthalene is put into sulphonation kettle, steam is led into heat exchange jacket, it is 152 so that naphthalene heating is melted to temperature
After DEG C, a concentration of 99% concentrated sulfuric acid is at the uniform velocity added into sulphonation kettle, acid addition time is 90 minutes, continues logical steam heating and thermal insulation
90 minutes, holding temperature was 166 DEG C, keeps the temperature 3h, obtains sulfonation material；
Step S2, it hydrolyzes：Sulfonation material obtained by step S1 is transferred to condensation kettle, cooling water is passed through into heat exchange jacket,
The room temperature dilution water of sulfonation material gross mass 13% is added into sulfonation material simultaneously, then keeps the temperature 20 minutes, holding temperature is
114℃；
Step S3, it is condensed：It is passed through cooling water into the heat exchange jacket of condensation kettle, makes the sulfonated bodies after the hydrolysis in condensation kettle
When the temperature of material drops to 102 DEG C, 37% formalin is added into condensation kettle, it is 3 hours to add the time of formalin, adds first
The speed of aldehyde solution is the half of first hour totalling amount；Add remaining total amount in second hour 2/3rds；Third is small
When add remaining amount；After formalin is added, temperature is promoted to keeping the temperature after 106 DEG C, controlled at 108 DEG C, when heat preservation
Between be not less than 3 hours, obtain condensation material；
Step S4, it neutralizes：Condensation material in step S3 is transferred to neutralization kettle, to the hydrogen-oxygen for neutralizing addition 50% in kettle
Change sodium solution, it is 8 to adjust and neutralize the pH value of solution in kettle, is cooled to 90 DEG C hereinafter, obtaining naphthalene water reducer.
It is prior art preparation naphthalene water reducer that the steam consumption during naphthalene water reducer is prepared using the above method
Steam consumption 48%.
Embodiment 3
Step S1, sulfonation：Naphthalene is put into sulphonation kettle, steam is led into heat exchange jacket, it is 153 so that naphthalene heating is melted to temperature
After DEG C, a concentration of 100% concentrated sulfuric acid is at the uniform velocity added into sulphonation kettle, acid addition time is 90 minutes, continues logical steam heating and protects
Temperature 90 minutes, holding temperature are 168 DEG C, keep the temperature 2h, obtain sulfonation material；
Step S2, it hydrolyzes：Sulfonation material obtained by step S1 is transferred to condensation kettle, cooling water is passed through into heat exchange jacket,
The room temperature dilution water of sulfonation material gross mass 15% is added into sulfonation material simultaneously, then keeps the temperature 20 minutes, holding temperature is
120℃；
Step S3, it is condensed：It is passed through cooling water into the heat exchange jacket of condensation kettle, makes the sulfonated bodies after the hydrolysis in condensation kettle
When the temperature of material drops to 103 DEG C, 37% formalin is added into condensation kettle, it is 3 hours to add the time of formalin, adds first
The speed of aldehyde solution is the half of first hour totalling amount；Add remaining total amount in second hour 2/3rds；Third is small
When add remaining amount；After formalin is added, temperature is promoted to keeping the temperature after 106 DEG C, controlled at 109 DEG C, when heat preservation
Between be not less than 3 hours, obtain condensation material；
Step S4, it neutralizes：Condensation material in step S3 is transferred to neutralization kettle, to the hydrogen-oxygen for neutralizing addition 50% in kettle
Change sodium solution, it is 8.5 to adjust and neutralize the pH value of solution in kettle, is cooled to 90 DEG C hereinafter, obtaining naphthalene water reducer.
It is prior art preparation naphthalene water reducer that the steam consumption during naphthalene water reducer is prepared using the above method
Steam consumption 45%.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (6)
1. the preparation method of naphthalene water reducer, which is characterized in that include the following steps：
Step S1, sulfonation：Naphthalene is put into sulphonation kettle, into heat exchange jacket lead to steam, make naphthalene heating be melted to temperature be 150 DEG C~
After 153 DEG C, a concentration of 98% or more the concentrated sulfuric acid is at the uniform velocity added into sulphonation kettle, acid addition time is 90 minutes, continues logical steam
Heating and thermal insulation 90 minutes, holding temperature are 164 DEG C~168 DEG C, keep the temperature 2h~4h, obtain sulfonation material；
Step S2, it hydrolyzes：Sulfonation material obtained by step S1 is transferred to condensation kettle, cooling water is passed through into heat exchange jacket, simultaneously
The room temperature dilution water of sulfonation material gross mass 10%~15% is added into sulfonation material, then keeps the temperature 20 minutes, holding temperature
It is 108 DEG C~120 DEG C；
Step S3, it is condensed：It is passed through cooling water into the heat exchange jacket of condensation kettle, makes the sulfonation material after the hydrolysis in condensation kettle
When temperature drops to 100 DEG C~103 DEG C, 37% formalin is added into condensation kettle, it is 3 hours to add the time of formalin,
It is the half of first hour totalling amount to add the speed of formalin；Add remaining total amount in second hour 2/3rds；The
Three hours plus remaining amount；After formalin is added, temperature is promoted to keeping the temperature after 105 DEG C~106 DEG C, controlled at
107 DEG C~109 DEG C, soaking time is not less than 3 hours, obtains condensation material；
Step S4, it neutralizes：Condensation material in step S3 is transferred to neutralization kettle, to the sodium hydroxide for neutralizing addition 50% in kettle
Solution, it is 7~8.5 to adjust and neutralize the pH value of solution in kettle, is cooled to 90 DEG C hereinafter, obtaining naphthalene water reducer.
2. the Preparation equipment of naphthalene water reducer according to claim 1, which is characterized in that recycled including sulphonation kettle, naphthalene vapour
Room, level-one spray column and two level spray column；The sour tank of acid inlet connection of the sulphonation kettle, the venthole connection level-one spray of sulphonation kettle
The air intake of tower is drenched, the venthole of level-one spray column is connect with the air intake of two level spray column.
3. the Preparation equipment of naphthalene water reducer according to claim 2, which is characterized in that including condensation kettle, the condensation
The input port of kettle is connect with the delivery outlet of the sulphonation kettle, and the formaldehyde inlet on the condensation kettle connects formaldehyde holding vessel, institute
The venthole for stating condensation kettle is connect with the air intake of the level-one spray column.
4. the Preparation equipment of naphthalene water reducer according to claim 3, which is characterized in that including neutralizing kettle and alkali liquid tank；
The delivery outlet of the input port for neutralizing kettle and condensation kettle connects, and the neutralization kettle is also connect with alkali liquid tank by pipeline.
5. according to the Preparation equipment of claim 2-4 any one of them naphthalene water reducers, which is characterized in that the level-one spray
Tower and two level spray column include spray tower body, and be arranged from the bottom to top in spray column body water tank, packing layer,
One nozzle receives water packing layer, the second nozzle and demisting layer, and air outlet, the spray column are offered at the top of the spray tower body
Body is circumferentially with air intake and access hole, and the position of the demisting layer circumferential direction is set into hole, and demisting layer bottom is equipped with pedestal,
The pedestal is equipped with several grids, demister is arranged on the pedestal, the demister is along three parallel lines being equally spaced
It is divided into four parts.
6. the Preparation equipment of naphthalene water reducer according to claim 4, which is characterized in that described to change including heat exchange jacket
Thermal jacket is coated on the sulphonation kettle, condensation kettle and the outside for neutralizing kettle.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110156368A (en) * | 2019-05-24 | 2019-08-23 | 莱芜市兆信新材料股份有限公司 | A kind of preparation method of gypsum water-reducing agent |
| CN112574072A (en) * | 2020-11-20 | 2021-03-30 | 安徽鑫固环保股份有限公司 | Method for synthesizing dispersant by using acid tar |
| CN113041820A (en) * | 2021-03-12 | 2021-06-29 | 广东科隆智谷新材料股份有限公司 | Method for treating sulfonated tail gas generated in production of water reducing agent from naphthalene |
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| JPS59184152A (en) * | 1983-04-01 | 1984-10-19 | Japan Synthetic Rubber Co Ltd | Production of sulfonated substance |
| CN101723860A (en) * | 2009-12-08 | 2010-06-09 | 上虞吉龙化学建材有限公司 | Method for preparing naphthalene series water reducing agent |
| CN101797471A (en) * | 2010-04-16 | 2010-08-11 | 惠州市红墙化学建材有限公司 | Treating and recycling method of tail gas generating in sulfonated naphthaldehyde water reducing agent production and special equipment |
| CN105498438A (en) * | 2016-02-04 | 2016-04-20 | 武汉苏博新型建材有限公司 | Tail gas recovery system for naphthalene water reducer |
| CN207324377U (en) * | 2017-10-20 | 2018-05-08 | 衡水英利新能源有限公司 | A kind of improved spray tower apparatus |
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2018
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59184152A (en) * | 1983-04-01 | 1984-10-19 | Japan Synthetic Rubber Co Ltd | Production of sulfonated substance |
| CN101723860A (en) * | 2009-12-08 | 2010-06-09 | 上虞吉龙化学建材有限公司 | Method for preparing naphthalene series water reducing agent |
| CN101797471A (en) * | 2010-04-16 | 2010-08-11 | 惠州市红墙化学建材有限公司 | Treating and recycling method of tail gas generating in sulfonated naphthaldehyde water reducing agent production and special equipment |
| CN105498438A (en) * | 2016-02-04 | 2016-04-20 | 武汉苏博新型建材有限公司 | Tail gas recovery system for naphthalene water reducer |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110156368A (en) * | 2019-05-24 | 2019-08-23 | 莱芜市兆信新材料股份有限公司 | A kind of preparation method of gypsum water-reducing agent |
| CN112574072A (en) * | 2020-11-20 | 2021-03-30 | 安徽鑫固环保股份有限公司 | Method for synthesizing dispersant by using acid tar |
| CN113041820A (en) * | 2021-03-12 | 2021-06-29 | 广东科隆智谷新材料股份有限公司 | Method for treating sulfonated tail gas generated in production of water reducing agent from naphthalene |
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