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화학산업용 마그네솔은 고순도의 폴리올를 생산하는 업체에서 주로 사용되고 있으며 제품 종류로는 HMR-LS, Polysorb 30/40, Cartride가 있습니다. 현재 국내에서는 한국 바스프, SK 케미칼, 미원스페셜티 등에서 사용되고 있습니다.
MAGNESOL® is the registered trademark for a special hydrated, synthetic, amorphous magnesium silicate possessing a porous structure and active surface. This unique structure imparts high performance selective and sorptive properties.
Purification by MAGNESOL® is widely recognized as the most effective way to produce high quality polyols. With high adsorptivity and excellent filtration characteristics, MAGNESOL® magnesium silicates are economical and easy to use.
The highly active surface of MAGNESOL® attracts sodium, potassium, and other metal ions as well as other polar compounds by chemisorption and holds them for removal from the process by filtration. The result is a high purity, odor-free, crystal clear, sparkling polyol. No other method or adsorbent achieves lower residual sodium and potassium levels than MAGNESOL®.
With a porous internal structure and enormous activated surface, MAGNESOL® products are ideal for use as adsorbents of polar compoundssuch as KOH, NaOH or other catalysts from crude polyols and surfactants.
The Dallas Group offers three different grades of MAGNESOL® for these applications and has the technical resoures to assist custoers in choosing the best grade for theiir application.
TYPICAL CHARACTERISTICS
| Parameter | HMR-LS | Polysorb 30/40 | Cartridge |
|---|---|---|---|
| Mole Ratio, MgO : Sio2 | 1:3.6 | 1:2.7 | 1:2.7 |
| Surface Area(BET),m2/g | 150 | 400 | 400 |
| Polyol Absorption, weight polyol :MAGNESOL® | 0.75:1 | 1:1 | 1:1 |
| Particle Size Distribution, mean(micrometers) | 40 | 55 | 80 |
| 10% less than | 5 | 10 | 35 |
| 50% less than | 35 | 45 | 75 |
| 90% less than | 75 | 120 | 135 |
| Bulk Density-packed, g/cc | 0.51 | 0.45 | 0.45 |
| Bulk Density-loose, g/cc | 0.38 | 0.35 | 0.37 |
Polysorb 30/40 is the industry standard for catalyst removal. HMR-LS has the advantage of higher bulk density with lower organic absorption while Cartridge grade has superior filtration properties. The above grades offer a range of purification solution to the industry