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创建于04.12
Anionic/Cationic/Nonionic Emulsion Polyacrylamide: Process innovation and application prospect of high efficiency liquid flocculants
Anionic/Cationic/Nonionic Emulsion Polyacrylamide: Process innovation and application prospect of high efficiency liquid flocculants
Abstract
As a new generation of highly efficient liquid flocculant, Anionic/Cationic/Nonionic Emulsion Polyacrylamide is prepared by the advanced technology of water-in-oil (W/O), which shows excellent performance characteristics and wide application potential. In this paper, the preparation process, performance advantages and application in different fields of the product are systematically introduced, and the future development of the product is prospected.
1.Introduction
In water treatment, oil extraction, paper and other industries, polyacrylamide (PAM) plays a key role as an important flocculant and thickener. Traditional solid PAM products have some disadvantages such as slow dissolution and inconvenient use. Emulsion polyacrylamide has successfully solved these problems through technological innovation, and has become a hot topic in current research and application.
2.Product preparation process
Anionic/Cationic/Nonionic Emulsion Polyacrylamide is prepared by an advanced water-in-oil (W/O) process:
(1) With the help of special W/O emulsifier, the aqueous monomer solution is dispersed in the oil phase medium
(2) Polymerization under specific conditions
(3) Through process control to achieve the preparation of high molecular weight products
The process has the following technical advantages:
●High conversion rate (>99%)
●Product molecular weight control (up to 20 million or more)
●Good system stability (storage period up to 6-12 months)
3.Product performance characteristics
3.1 High conversion rate
The conversion rate of polymerization is more than 99%, the content of active ingredients is high, and the product performance is stable.
3.2 High Molecular weight
The molecular weight can reach millions to tens of millions, and the flocculation effect is significantly better than that of traditional products.
3.3 High Stability
The special emulsification system ensures stable product performance during storage without delamination and precipitation.
3.4 Versatility
By adjusting the process parameters, anionic, cationic and non-ionic products can be obtained to meet different needs.
3.5 Instant solubility
Emulsion products dissolve quickly and can usually be completely dissolved within 5-30 minutes, greatly improving the efficiency of use.
4.Application field
4.1 Water Treatment
●Municipal sewage treatment
●Industrial wastewater treatment
●Sludge dewatering
4.2 Oil Exploitation
●Displacing agent
●Drilling fluid additive
●Fracturing fluid thickener
4.3 Paper Industry
●Retention and filtration aid
●fortifier
●Wastewater treatment
4.4 Other Areas
●Mineral processing
●Textile printing and dyeing
●Food industry
5.Use precautions
(1) Select the appropriate ion type according to water quality characteristics
(2) Control the optimal dosage (usually 0.1-10ppm)
(3) Pay attention to the dissolution conditions and stirring speed
(4) Avoid contact with strong oxidants
6.Development prospects
The future development of emulsion polyacrylamide will focus on:
●Development of environmental protection emulsifier
●Improved salt resistance
●Development of intelligent responsive products
●Further optimization of the production process
7.Conclusion
Anionic/Cationic/Nonionic Emulsion Polyacrylamide with its excellent performance and convenient use characteristics, is gradually replacing the traditional solid products, becoming the mainstream choice in the flocculant market. With the continuous progress of process technology and the deepening of application research, the product will play an important role in more fields and provide strong support for the sustainable development of various industries.
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