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Aluminum Silicate Porous
, 12141-46-7 Aluminum Silicate
, 12141-46-7 synthetic aluminium silicate
Synthetic Aluminum Silicate Adsorbent Porous Structure Used in Polyether Polyol Refining
Product Name: Aluminum Silicate Adsorbent
CAS No.: 12141-46-7
Molecular Formula: xAl2O3·ySiO2·nH2O
Product Introduction:
Our Synthetic Aluminum Silicate Adsorbent, with a unique porous structure, is designed for polyether refining. The precisely sized pores create a large internal surface area, offering numerous active adsorption sites. During polyether refining, it rapidly and powerfully adsorbs metal ions, acidic substances, and color - forming impurities. This effectively improves polyether quality, ensuring lower acidity, higher purity, and better color stability, essential for high - performance polyurethane applications. It's the top choice for polyether producers seeking to boost product quality and market competitiveness.
Specification:
|
No.
|
Item
|
Specification
|
|
1
|
Silica (SiO2), %
|
75±5
|
|
2
|
Aluminum oxide (Al2O3), %
|
16±2
|
|
3
|
Chloride ion (Cl-), %
|
≤0.1
|
|
4
|
Sulfate ion (SO42-), %
|
≤0.5
|
|
5
|
Loss on Drying, %
|
≤8.0
|
|
6
|
pH Value (5% suspension)
|
5-8
|
|
7
|
Apparent Volume (ml/10g)
|
32±4
|
Package:
Net 20kg per bag. Coated paper on the outside, kraft composite paper lining and soft plastic bag.
Customized package available.
Application of Aluminum Silicate Adsorbent in the Polyether Polyol Refining
Aluminum silicate adsorbent has emerged as a significant material in the refining process of polyether polyols, contributing to the enhancement of product quality and efficiency. This article delves into the applications, mechanisms, and benefits of aluminum silicate adsorbents in the polyether polyol refining industry.
Polyether polyols are essential components in the production of polyurethane materials, widely used in various applications such as foam plastics, elastomers, coatings, and adhesives. The refining of polyether polyols aims to remove impurities and improve the purity and performance of the final product. Aluminum silicate, with its unique porous structure and high surface area, serves as an effective adsorbent in this process.
Mechanism of Adsorption
The adsorption mechanism of aluminum silicate involves the interaction between the adsorbent and the target impurities in the polyether polyol. The porous structure of aluminum silicate provides a large surface area for adsorption, enabling the capture of impurities through physical adsorption and chemical interaction. The surface of aluminum silicate contains active sites that can bind with impurities such as water, residual catalysts, and other trace impurities. This selective adsorption process helps in purifying the polyether polyol and enhancing its properties.
Applications in Polyether Polyol Refining
1.Moisture Removal: Water is a common impurity in polyether polyols, which can affect the foaming process and the final properties of polyurethane products. Aluminum silicate adsorbent exhibits excellent moisture adsorption capacity, effectively removing water from the polyether polyol, thereby improving the stability and performance of the product.
2.Catalyst Removal: In the synthesis of polyether polyols, catalysts such as potassium hydroxide or sodium hydroxide are often used. Residual catalysts can lead to adverse reactions during the subsequent processing of polyurethane. Aluminum silicate adsorbent can selectively adsorb these residual catalysts, ensuring the purity of the polyether polyol and preventing quality issues in the final product.
3.Purification of Trace Impurities: Apart from water and catalysts, polyether polyols may contain other trace impurities such as organic compounds and metal ions. Aluminum silicate adsorbent can effectively remove these impurities, improving the overall purity and quality of the polyether polyol.
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