Download or read book The Oxidation of Propylene Glycol written by Edward Charles Hytree and published by . This book was released on 1923 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Production of Propylene Oxide from Propylene Glycol written by Surupa Dimple Abraham and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The primary goal of this research was to find a renewable synthesis method for the production of propylene oxide. Significant quantities of glycerin are formed as a co-product when soybean oil is used to produce bio-diesel. This glycerin can be used to produce propylene glycol, which can undergo dehydration over basic catalysts to produce propylene oxide (PO), along with eight other products: acetaldehyde, propionaldehyde, acetone, 2-propanol, 1-propanol, allyl alcohol, acetol, and dipropylene glycol. A variety of catalysts were prepared for each set of reactions, and dehydration was carried out in a plug flow reactor. For this thesis, only three main catalysts are presented, such as Na/Al2O3 (sodium acetate on alumina), Cs-ETS-10, and Na acac/MgO (sodium acetyl acetonate on nanocrystalline MgO). Dehydration reactions were performed with different masses of catalyst, reactor temperatures, and residence times to optimize the selectivity to PO. The highest selectivity to PO was obtained as 12.33% for Na acac/MgO catalyst at 400_ C, 0.1g, and a N2 flow rate of 20SCCM. Even though Cs-ETS-10 catalyst was active for PO production, it also produced higher amounts of dipropylene glycol (80%). Dipropylene glycol appears to act as an active intermediate in the dehydration of propylene glycol to propylene oxide over Cs-ETS-10 catalyst, which would limit PO selectivity to 50%. The Na/Al2O3 resulted in low selectivity of 2% to PO, although it gave an appreciable selectivity of 60% to propionaldehyde. The reaction pathway to PO over these catalysts was also studied. Dehydration of propylene glycol to propylene oxide over Na/Al2O3, and Na acac/MgO catalysts appears to be a direct dehydration, rather than the involvement of a dipropylene glycol active intermediate.

Download or read book Propylene Glycol from Propylene Oxide Cost Analysis Propylene Glycol E31A written by Intratec and published by Intratec Solutions. This book was released on 2019-09-17 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents a cost analysis of Propylene Glycol production from propylene oxide. The process examined is a typical hydration process, in which propylene oxide is hydrolyzed to Propylene Glycol. The hydration reaction output is purified, yielding Propylene Glycol as the main product and dipropylene glycol as by-product. This report was developed based essentially on the following reference(s): (1) "Propanediols," Ullmann's Encyclopedia of Industrial Chemistry, 7th edition (2) "Glycols, Propylene Glycols," Kirk-Othmer Encyclopedia of Chemical Technology, 5th edition Keywords: PO, Epoxypropane, Propane-1,2-diol

Download or read book Propylene Oxide to Propylene Glycols written by Paul Davenport and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Public Health Consequences of E Cigarettes written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2018-05-18 with total page 775 pages. Available in PDF, EPUB and Kindle. Book excerpt: Millions of Americans use e-cigarettes. Despite their popularity, little is known about their health effects. Some suggest that e-cigarettes likely confer lower risk compared to combustible tobacco cigarettes, because they do not expose users to toxicants produced through combustion. Proponents of e-cigarette use also tout the potential benefits of e-cigarettes as devices that could help combustible tobacco cigarette smokers to quit and thereby reduce tobacco-related health risks. Others are concerned about the exposure to potentially toxic substances contained in e-cigarette emissions, especially in individuals who have never used tobacco products such as youth and young adults. Given their relatively recent introduction, there has been little time for a scientific body of evidence to develop on the health effects of e-cigarettes. Public Health Consequences of E-Cigarettes reviews and critically assesses the state of the emerging evidence about e-cigarettes and health. This report makes recommendations for the improvement of this research and highlights gaps that are a priority for future research.

Download or read book NTP CERHR Monograph on the Potential Human Reproductive and Developmental Effects of Propylene Glycol written by and published by . This book was released on 2004 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Toxicological Profile for Ethylene Glycol and Propylene Glycol written by and published by . This book was released on 1997 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Simultaneous Kinetic Reasoning of Propylene Oxide and Propylene Glycol in a Continuous Reactive Distillation Column written by Matthew J. Okasinski and published by . This book was released on 1999 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Technical Report for Ethylene Glycol propylene Glycol written by and published by . This book was released on 1993 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Oxidation of Propylene Glycol written by Edgar John Witzemann and published by . This book was released on 1912 with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Carcinogenic Effects of Exposure to Propylene Oxide written by and published by . This book was released on 1989 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Propylene Glycol written by and published by . This book was released on 1977 with total page 79 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Basic Fundamentals of Drug Delivery written by and published by Academic Press. This book was released on 2018-11-30 with total page 810 pages. Available in PDF, EPUB and Kindle. Book excerpt: Basic Fundamentals of Drug Delivery covers the fundamental principles, advanced methodologies and technologies employed by pharmaceutical scientists, researchers and pharmaceutical industries to transform a drug candidate or new chemical entity into a final administrable drug delivery system. The book also covers various approaches involved in optimizing the therapeutic performance of a biomolecule while designing its appropriate advanced formulation. Provides up-to-date information on translating the physicochemical properties of drugs into drug delivery systems Explores how drugs are administered via various routes, such as orally, parenterally, transdermally or through inhalation Contains extensive references and further reading for course and self-study

Download or read book Propylene Glycol written by and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Propylene Oxide written by Canada. Environmental Protection Programs Directorate. Technical Services Branch and published by Environment Canada, Environmental Protection Service. This book was released on 1985 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: Physical and chemical data, commerce and production, handling, compatibility, transport, environmental data, health effects, countermeasures, previousspill experience and analytical methods are detailed.

Download or read book Propylene Glycol N F written by Dow Chemical Company and published by . This book was released on 1944 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Electrolytic Oxidation of Propylene Glycol written by William McLennan Morgan and published by . This book was released on 1922 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: