Compound defoaming agent

A defoamer and composite technology, applied in the direction of foam dispersion/prevention, degassed water/sewage treatment, chemical instruments and methods, etc., can solve problems such as narrow application range, achieve long foam suppression time and good compatibility , fast defoaming effect

Inactive Publication Date: 2017-05-31
新疆水处理工程技术研究中心有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

They have their own characteristics and are applied in different fields. Most of the defoamers have a relatively narrow scope of application, so producing a defoamer with a wider application range and better use effect must become the development of the current defoamer. direction

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] 25 parts of polyoxyethylene polyoxypropylene propylene glycol ether, 25 parts of dimethyl silicone oil, 20 parts of glycerin tristearate, 15 parts of polyether modified siloxane, 10 parts of sodium dodecylsulfonate, isooctyl Add 5 parts of alcohol into the enamel reaction kettle one by one, start stirring, control the rotation speed of the stirring paddle at 80r / min, stir and react at 160°C for 2 hours, and the finished product is obtained after cooling.

Embodiment 2

[0025] 25 parts of polyoxyethylene polyoxypropylene propylene glycol ether, 20 parts of dimethyl silicone oil, 15 parts of glycerin tristearate, 20 parts of polyether modified siloxane, 10 parts of sodium dodecylsulfonate, isooctyl Add 10 parts of alcohol into the enamel reaction kettle one by one, start stirring, control the rotation speed of the stirring paddle at 120r / min, stir and react at 160°C for 2 hours, and the finished product is obtained after cooling.

Embodiment 3

[0027] 23 parts of polyoxyethylene polyoxypropylene propylene glycol ether, 24 parts of dimethyl silicone oil, 18 parts of glycerin tristearate, 20 parts of polyether modified siloxane, 5 parts of sodium dodecylsulfonate, isooctyl Add 10 parts of alcohol into the enamel reaction kettle one by one, start stirring, control the rotation speed of the stirring paddle at 100r / min, stir and react at 160°C for 2 hours, and the finished product is obtained after cooling.

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PUM

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Abstract

The invention discloses a compound defoaming agent which comprises the following ingredients: 20-25 parts of polyoxyethylene polyoxypropylene glycol ether, 20-25 parts of dimethicone, 15-20 parts of polyether modified siloxane, 15-20 parts of glycerol tristearate, 5-10 parts of sodium dodecyl sulfate and 5-10 parts of isooctyl alcohol. The compound defoaming agent has the characteristics of quick defoaming, long foam inhibition time, alkali resistance, acid resistance, high-temperature resistance and good compatibility, and can be widely used for removing harmful foam in industrial production.

Description

technical field [0001] The invention relates to the technical field of defoamer production, in particular to a composite defoamer for sewage treatment. Background technique [0002] Foam is a common phenomenon in life and work. If not properly suppressed, foam will bring a lot of troubles to production, such as affecting the normal production, reducing the effective load of equipment, causing product quality and production capacity to decline, etc. The methods of eliminating harmful foam mainly include physical methods and chemical methods, among which the use of defoamers to defoam is one of the chemical defoaming methods. [0003] At present, defoamers have been widely used in papermaking, textile printing and dyeing, oil exploration and refining, coatings, emulsion polymerization, sewage treatment, metal cleaning and other industries, and defoamers have become indispensable functional additives in the production process. [0004] According to different defoaming active s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D19/04C02F1/20
CPCB01D19/0472B01D19/0404C02F1/20
Inventor 徐进峰曾凡付王刚
Owner 新疆水处理工程技术研究中心有限公司
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