Vasylyk A. An improved technology of brandy distillate production on batch installations.

Research objects - the process of wine material distillation into brandy distillate.Research objective - to improve technology of brandy distillate production using double-distillation installations with a view to achieve maximum yield of brandy distillate, to increase its quality and to reduce energy consumption during distillation.Methods - theoretical methods with the use of chemical and physicochemical methods, experiment methods with the use of mathematical modeling and methods of mathematical statistics and data analysis.Theoretical and practical results - principles of optimizing the process of wine material double distillation into brandy distillate have been established and suggested.Novelty - the presence of an optimum proportion (by volume) of ethyl alcohol in brandy raw spirit which enables maximum yield of brandy distillate and minimum energy consumption have theoretically substantiated for the first time; a mathematical dependence between optimum proportion (by volume) of ethyl alcohol in brandy raw spirit and ethyl alcohol proportion (by volume) in original wine material and also on brandy distillate to be obtained has been established; a regularity governing accumulation of head impurities in brandy distillate during a multiple return of fractions obtained during the first distillation into wine material of further distillations has been established, and their effects on brandy distillate quality have been determined.Implementation degree: a technological instruction concerning young brandy distillate production based on the results of the research done has been developed and approved.Effectiveness - the economical effectiveness is 2750 hrn per 1000 dal of anhydrous alcohol.Sphere, branch of use: the grape and wine industry.