Alcohols manufacture

ALCOHOLS,HIGHERALIPHATIC - SURVEY AND NATURAL ALCOHOLS MANUFACTURE] (Vol 4)... 

Survey and natural alcohols manufacture, Synthetic processes,... 

Fig. 5. Flow diagram for oxo alcohol manufactured by the two-stage process. Courtesy of the Ethyl Corporation.

In this process, the fine powder of lithium phosphate used as catalyst is dispersed, and propylene oxide is fed at 300°C to the reactor, and the product, ahyl alcohol, together with unreacted propylene oxide is removed by distihation (25). By-products such as acetone and propionaldehyde, which are isomers of propylene oxide, are formed, but the conversion of propylene oxide is 40% and the selectivity to ahyl alcohol reaches more than 90% (25). However, ahyl alcohol obtained by this process contains approximately 0.6% of propanol. Until 1984, ah ahyl alcohol manufacturers were using this process. Since 1985 Showa Denko K.K. has produced ahyl alcohol industriahy by a new process which they developed (6,7). This process, which was developed partiy for the purpose of producing epichlorohydrin via ahyl alcohol as the intermediate, has the potential to be the main process for production of ahyl alcohol. The reaction scheme is as fohows ... 

Isopropyl alcohol manufacture (strong acid process)... 

Glyoxylic acid ethyl ester ethyi alcoholate Manufacturing Process... 

Primary alcohols are produced either by the catalytic hydrogenation of methyl esters or by fatty acids derived from oils and fats, e.g., coconut oil (C12-C14) or tallow (Cl6-C18), or from synthetic sources. Alcohols manufactured from natural oils and fats and from the Ziegler-type processes produce even-numbered chain length primary alcohols. 

Aldol addition, 2 63-64 acetone, 1 164 Aldolases, 3 675 4 711 Aldol process, for higher alcohol manufacture, 2 27t, 41-43 Aldonic acid, 14 132 Aldoses, 4 696... 

Isobutyraldehyde, 4 459 14 584 animal toxicty, 4 466t effect of unsaturation on toxicity, 2 69t isobutyl alcohol manufacture from, 4 397 oxidative dehydrogenation of, 16 252 physical properties of, 4 459t quality specifications, 4 465t Isobutyraldol, butyraldehyde derivative, 4 461... 

Alcohols are also widely produced from fats and oils, and in some cases one of the oldest techniques utilised in the manufacture of soap, fat splitting, is also used as part of the process. Vegetable oils as well as animal fats are all triglycerides and consequently a key step of the various technologies used in the alcohol manufacture involves the separation of glycerine. Oleochemical alcohols are produced using two... 

Uses Denaturant for ethyl alcohol manufacturing flavors, perfumes (artificial musk), flotation agents solvent paint removers octane booster for unleaded gasoline dehydrating agent chemical intermediate. 

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