提供DuraMem®和PuraMem® 有机溶剂纳滤（OSN）膜
我们现在可以提供DuraMem®和PuraMem®膜，这是我们化学耐药膜产品系列的有价值的补充。 由Evonik制造的Duramem®和Puramem®聚合物膜是有机溶剂纳滤（OSN）的市场***。
有机溶剂纳滤，即通过半透膜分离溶解在有机溶剂中的分子，在过去十年中已经获得了很大的发展。 OSN与常规分离过程的优点包括较低的能量需求，节约昂贵的原料和系统稳健性。
DuraMem®在大多数极性和极性非质子溶剂（丙酮，四氢呋喃，二甲基甲酰胺，异丙醇，乙腈，*****，乙酸乙酯等）中具有长期稳定性，而PuraMem®系列在非极性烃类溶剂（甲苯，庚烷， 己烷，*****，甲基 - 异丁基酮，乙酸乙酯等）保持稳定。
技术规格
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材质：P84®聚酰亚胺
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分子量截止范围：
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Duramem®：150至900 Da
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PuraMem®：280至600 Da
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推荐*高温度：50°C（122°F）
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推荐*大工作压力：20至60巴（290至870 psi）
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DuraMem®和PuraMem®膜的主要应用领域
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去除杂质或产品净化
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单体/二聚体分离
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分子分馏
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室温溶剂交换
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催化剂回收和回收
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颜色去除
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溶剂回收
DuraMem®和PuraMem®系列都有平板格式以及螺旋缠绕元件。 有关这些膜及其应用的更多信息，请联系膜工艺专家：北京品超思瑞 010-63150800
DuraMem® and PuraMem® membranes are now available as a valuable addition to our Chemically Resistant Membranes product line. Duramem® and Puramem® polymeric membranes, made by Evonik, are market leaders for Organic Solvent Nanofiltration (OSN).
Organic Solvent Nanofiltration, i.e. separation of molecules dissolved in organic solvents through a semipermeable membrane, has gained great traction over the last decade. Advantages of OSN over conventional separation processes include lower energy requirements, conservation of expensive materials, and system robustness.
DuraMem® offers long term stability in most polar and polar aprotic solvents (acetone, tetrahydrofuran, dimethylformamide, isopropanol, acetonitrile, methylethylketone, ethyl acetate, and more), while PuraMem® series is stable in apolar hydrocarbon-type solvents (toluene, heptane, hexane, methylethylketone, methyl-isobutylketone, ethyl acetate, and more).
Technical Specs
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Material: P84® polyimide
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Molecular weight cutoff range:
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Duramem®: 150 to 900 Da
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PuraMem®: 280 to 600 Da
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Recommended maximum temperature: 50°C (122°F)
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Recommended maximum operating pressure: from 20 to 60 bar (290 to 870 psi)
Main Application Areas for DuraMem® and PuraMem® Membranes
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Removal of impurities or product purification
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Monomer/dimer separation
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Molecular fractionation
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Room temperature solvent exchange
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Catalyst recovery and recycle
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Color removal
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Solvent recycling
