polyether adsorbent magnesium aluminum silicate CAS 71205-22-6

Product Details

Product Description

Product Description
Refined adsorbent magnesium aluminum silicate (general formula: [MX2+My3+An-(OH)n]·mH2O, is white spherical particles or powder with porous structure and good fluidity. It is a solid amphoteric compound. This product can remove acid, odour, and colour, adsorb potassium and sodium ions, and filter media. As a polyether refined adsorbent, it exhibits excellent adsorption and decolorization performance. It is used in the last section in the polyether polyols production process.
Technical indicators:

No.	Indicator Name	Index
1	SiO2 %	55±4
2	MgO %	16±2
3	Al2O3 %	16±4
4	Cl - % ≦	0.1
5	SO42- % ≦	0.5
6	Loss on drying % ≦	8.0
7	PH in water5%）	10±1
8	App. volume(ml/10g)	36±4

Production application: the crude polyether polyol was put into the neutralization kettle. A small amount of pure water is added at a certain temperature. the neutralization reaction was carried out after stirring. The solution is controlled to a given pH value. Magnesium aluminum silicate is added at the same temperature. The solution is kept at the temperature for 1.5~2 h before vacuum distillation for dehydration. A filtration cycle doesn’t begin until the water content reaches a given value. The K+(Na+) ion content of the solution is determined until it reaches a given value. The solution is filtered immediately, and the filtrate is clear and transparent polyether.

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