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Aliphatic efficient water reducing agent modified with 2-naphthol waste fluid and preparation method of aliphatic efficient water reducing agent

A high-efficiency water-reducing agent, aliphatic technology, applied in the field of waste liquid treatment, can solve the problems of difficult biochemical degradation, high toxicity, high energy consumption, etc.

Active Publication Date: 2018-05-18
萧县沃德化工科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 2-Naphthol production wastewater has the characteristics of complex composition, high concentration, high toxicity, dark color, strong acid-base buffering ability, difficult biochemical degradation and great harm to human body and environment. The environmental pollution problems caused by this have not been effectively solved. Solution, the treatment of 2-naphthol waste liquid at present is mainly through distillation concentration, chemical treatment, etc. The waste liquid treatment is complicated, consumes a lot of energy, and the treatment cost is high

Method used

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  • Aliphatic efficient water reducing agent modified with 2-naphthol waste fluid and preparation method of aliphatic efficient water reducing agent

Examples

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Effect test

Embodiment 1

[0019] An aliphatic superplasticizer modified with 2-naphthol waste liquid, which is made of the following parts by weight of raw materials: 50 parts 2-naphthol waste liquid, 70 parts acetone, 320 parts formaldehyde, 140 parts sodium sulfite, and 10 parts of azodiisobutyronitrile, 8 parts of cellulose xanthate, 7 parts of sodium styrene sulfonate, 55 parts of calcium chloride, and 145 parts of water. The preparation method is:

[0020] (1) Mix cellulose xanthate and sodium styrene sulfonate with water to prepare solution A; (2) Add 2-naphthol waste liquid and sodium sulfite to water, and heat to 35°C; (3) Go to step (2) ) Add azobisisobutyronitrile and acetone to the solution, increase the temperature to 52°C and keep it for 3h; continue to add formaldehyde and keep it for 1h; (4) Add solution A to step (3), increase the temperature to 70°C, and add chlorine Calcium, heat preservation for 60 minutes, and cooling to prepare 2-naphthol waste liquid modified aliphatic superplastici...

Embodiment 2

[0022] A modified aliphatic superplasticizer with 2-naphthol waste liquid, which is made of the following parts by weight of raw materials: 63 parts 2-naphthol waste liquid, 70 parts methyl ethyl ketone, 260 parts propionaldehyde, 80 parts sodium sulfite, 10 parts of azobisisovaleronitrile, 3 parts of cellulose xanthate, 5 parts of sodium styrene sulfonate, 40 parts of calcium chloride, 125 parts of water. The preparation method is:

[0023] (1) Mix cellulose xanthate and sodium styrene sulfonate with water to prepare solution A; (2) add 2-naphthol waste liquid and sodium sulfite to water and heat to 40°C; (3) go to step (2) ) Add azobisisovaleronitrile and methyl ethyl ketone to the solution, raise the temperature to 52°C and keep it for 2h; continue to add propionaldehyde and keep it for 1h; (4) add solution A to step (3), raise the temperature to 70°C, add Calcium chloride, heat preservation for 50 minutes, and cooling to prepare 2-naphthol waste liquid modified aliphatic sup...

Embodiment 3

[0025] An aliphatic superplasticizer modified with 2-naphthol waste liquid, which is made of the following parts by weight of raw materials: 78 parts 2-naphthol waste liquid, 75 parts acetone, 380 parts benzaldehyde, 130 parts sodium sulfite, 15 parts of azobiscyclohexylcarbonitrile, 5 parts of cellulose xanthate, 3 parts of sodium styrene sulfonate, 75 parts of calcium chloride, and 110 parts of water. The preparation method is:

[0026] (1) Mix cellulose xanthate and sodium styrene sulfonate with water to prepare solution A; (2) add 2-naphthol waste liquid and sodium sulfite to water and heat to 45°C; (3) go to step (2) ) Add azobiscyclohexylcarbonitrile and acetone to the solution, increase the temperature to 50°C and keep it for 2h; continue adding benzaldehyde and keep it for 2h; (4) Add solution A to step (3) and raise the temperature to 65°C, Calcium chloride is added, the temperature is kept for 70 minutes, and then cooled to prepare the 2-naphthol waste liquid modified ...

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Abstract

The invention provides an aliphatic efficient water reducing agent modified with 2-naphthol waste fluid and a preparation method of the aliphatic efficient water reducing agent, and relates to the technical field of waste fluid treatment. The aliphatic efficient water reducing agent is prepared from, by weight, 35-90 parts of 2-naphthol waste fluid, 60-80 parts of ketone compound, 260-380 parts ofaldehyde compound, 80-180 parts of sodium sulfite, 5-15 parts of initiator, 3-12 parts of cellulose xanthate, 1-10 parts of sodium p-styrenesulfonate, 30-90 parts of calcium chloride and 110-160 parts of water; in the preparation process, cellulose xanthate and sodium p-styrenesulfonate are mixed to obtain a solution A, sodium sulfite, the initiator, the ketone compound, the aldehyde compound, the solution A and calcium chloride are added in the 2-naphthol waste fluid in sequence, all reaction temperatures are controlled, and the water reducing agent is obtained. The prepared modified water reducing agent can obviously reduce collapsbillity loss; compared with frequently-used aliphatic water reducing agent, better collapse resistance and freezing resistance are achieved.

Description

Technical field [0001] The invention relates to the technical field of waste liquid treatment, in particular to a modified aliphatic superplasticizer with 2-naphthol waste liquid and a preparation method thereof. Background technique [0002] The production of 2-naphthol in my country mainly adopts the sulfonation-alkali melting route of naphthalene, which is produced through the processes of sulfonation, hydrolysis, neutralization, alkali melting, acidification, and refining. In this process, two waste liquids are mainly produced, one It is the mother liquor after suction filtration of sodium naphthalene sulfonate, and the other is the mother liquor of the water phase after the crude phenol is boiled and separated by cooling and pressure filtration. [0003] 2-Naphthol production wastewater has the characteristics of complex composition, high concentration, high toxicity, deep color, strong acid-base buffering, difficult to biochemically degrade, and great harm to the human body an...

Claims

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Application Information

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IPC IPC(8): C04B24/16C04B24/38C08G2/30C04B103/30
CPCC04B24/166C04B40/0039C04B2103/302C08G2/30C04B24/383C04B24/20C04B22/124
Inventor 马丽涛崔岩王硕
Owner 萧县沃德化工科技有限公司
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