提供DuraMem®和PuraMem® 有機(jī)溶劑納濾（OSN）膜
我們現(xiàn)在可以提供DuraMem®和PuraMem®膜，這是我們化學(xué)耐藥膜產(chǎn)品系列的有價(jià)值的補(bǔ)充。 由Evonik制造的Duramem®和Puramem®聚合物膜是有機(jī)溶劑納濾（OSN）的市場(chǎng)***。
有機(jī)溶劑納濾，即通過(guò)半透膜分離溶解在有機(jī)溶劑中的分子，在過(guò)去十年中已經(jīng)獲得了很大的發(fā)展。 OSN與常規(guī)分離過(guò)程的優(yōu)點(diǎn)包括較低的能量需求，節(jié)約昂貴的原料和系統(tǒng)穩(wěn)健性。
DuraMem®在大多數(shù)極性和極性非質(zhì)子溶劑（丙酮，四氫呋喃，二甲基甲酰胺，異丙醇，乙腈，*****，乙酸乙酯等）中具有長(zhǎng)期穩(wěn)定性，而PuraMem®系列在非極性烴類溶劑（甲苯，庚烷， 己烷，*****，甲基 - 異丁基酮，乙酸乙酯等）保持穩(wěn)定。
技術(shù)規(guī)格
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材質(zhì)：P84®聚酰亞胺
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分子量截止范圍：
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Duramem®：150至900 Da
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PuraMem®：280至600 Da
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推薦*高溫度：50°C（122°F）
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推薦*大工作壓力：20至60巴（290至870 psi）
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DuraMem®和PuraMem®膜的主要應(yīng)用領(lǐng)域
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去除雜質(zhì)或產(chǎn)品凈化
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單體/二聚體分離
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分子分餾
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室溫溶劑交換
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催化劑回收和回收
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顏色去除
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溶劑回收
DuraMem®和PuraMem®系列都有平板格式以及螺旋纏繞元件。 有關(guān)這些膜及其應(yīng)用的更多信息，請(qǐng)聯(lián)系膜工藝專家：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
