Chaudhari, Shivshankar; Shin, HyeonTae; Choi, SeoungYong; Cho, KieYong; Shon, MinYoung; Nam, SeungEun; Park, YouIn published an article in 2021, the title of the article was Hydrophilic and organophilic pervaporation of industrially important α,β and α,ω-diols.Recommanded Product: 111-29-5 And the article contains the following content:
The distillation-based purification of α,β and α,ω-diols is energy and resource intensive, as well as time consuming. Pervaporation separation is considered to be a remarkable energy efficient membrane technol. for purification of diols. Thus, as a core pervaporation process, hydrophilic polyvinyl alc. (PVA) membranes for the removal of water from 1,2-hexanediol (1,2-HDO) and organophilic polydimethylsiloxane-polysulfone (PDMS-PSF) membranes for the removal of isopropanol from 1,5 pentanediol (1,5-PDO) were employed. For 1,2-HDO/water separation using a feed having a 1 : 4 weight ratio of 1,2-HDO/water, the membrane prepared using 4 vol% glutaraldehyde (GA4) showed the best performance, yielding a flux of 0.59 kg m-2 h-1 and a separation factor of 175 at 40°C. In the organophilic pervaporation separation of the 1,5-PDO/IPA feed having a 9 : 1 weight ratio of components, the PDMS membrane prepared with a molar ratio of TEOS alkoxy groups to PDMS hydroxyl groups of 70 yielded a flux of 0.12 kg m-2 h-1 and separation factor of 17 638 at 40°C. Long term stability anal. found that both hydrophilic (PVA) and organophilic (PDMS) membranes retained excellent pervaporation output over 18 days’ continuous exposure to the feed. Both the hydrophilic and organophilic membranes exhibited promising separation performance at elevated operating conditions, showing their great potential for purification of α,β and α,ω-diols. The experimental process involved the reaction of Pentane-1,5-diol(cas: 111-29-5).Recommanded Product: 111-29-5
The Article related to pva pdms polysulfone membrane diol hydrophilic organophilic pervaporation, Plastics Fabrication and Uses: Plastic Product Uses and other aspects.Recommanded Product: 111-29-5
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