Chemistry and Chemical Reactivity, Sixth Edition John C. Kotz, Paul M. Treichel, Gabriela C. Weaver

Ngày tải lên: 19/08/2016, 10:27

... 18 2 19 3 18 7 19 5 18 9 19 5 18 8 19 4 19 0–200 Unsaponifiable matter (wt%) 26–40 81 91 6 11 10 7 12 8 10 0 11 5 14 2 17 6 86 10 7 45–70 17 0–203 75–94 50–55 14 – 21 110 12 6 10 4 12 0 12 4 13 9 11 8 14 5 33–47

Ngày tải lên: 06/08/2014, 13:22

... methanolysis but for waste fats, alternative processes that not use base catalysis may be preferred Lipase catalyzed methanolysis is less sensitive to fatty acid and water in the oil and has been tested ... has been extensively reviewed (19, 22 , 23 ) Biodiesel is produced on the industrial scale by methanolysis of vegetable oils (usually rape or soybean) or waste fat, particularly...

Ngày tải lên: 06/08/2014, 13:22

... renewable resources (oils and fats and starch, respectively), and the reaction can be carried out in a solvent-free system In commercial production, glucose is suspended in excess alcohol and reacted ... oleochemical and petrochemical sources Oils and fats provide straight chain lengths not readily available otherwise and the possibility of unsaturated chains The main feed stock...

Ngày tải lên: 06/08/2014, 13:22

... acids used as feedstock Model reactions use single fatty acids, often monoenes with particular double-bond positions Large-scale use of these reactions needs oils rich in single fatty acids to ... isomer mixture that does not contain all possible cis -and trans-isomers The absence of the 8c10t and 11t13c isomers suggests a concerted pericyclic mechanism that limits the geometrical possibil...

Ngày tải lên: 06/08/2014, 13:22

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Ngày tải lên: 14/12/2013, 15:52

... estimate physical properties and chemical reactivity parameters of organic compounds strictly from molecular structure SPARC uses computational algorithms based on fundamental chemical structure ... chemical and physical properties to Program Offices (e.g., Office of Water, Office of Solid Waste and Emergency Response, Office of Prevention, Pestic...

Ngày tải lên: 22/03/2014, 14:20