212 FOREST PRODUCTS 



I or 2 steel storage ranks for lime lee liquor. 



1 steel alcohol still with copper steam coils, column, separator and condenser for 

 producing 82 per cent crude alcohol from lime lee liquor above mentioned. 



Steel storage tank and one large steel shipping tank for raw liquor. The residue from 

 lime lee stills (acetate of lime) would be piped to the open steel settling tank and 

 then to steam pan. The acetate of lime would then be shoveled from steam pan to 

 drying floor on top of ovens if possible in order to utilize waste heat from ovens. 



The use of a small wooden tar still with copper neck and condenser 

 for distilling raw tar from settlers which contain a considerable quantity 

 of alcohol is also recommended. 



For refining the crude alcohol further one would require one steel still with copper 

 steam coils, refining column, separator and condenser for first distillation; one 

 steel still with copper steam coils, column of different type than used in first dis- 

 tillation including separator and cooler for second distillation. The alcohol in 

 first and second distillation is treated with caustic soda. A steel tank graduated 

 in inches or gallons should be provided for caustic soda storage and charging stills. 



2 steel storage tanks would be required for each still each tank having the capacity 

 equal to still. 



An all: copper still with copper steam coils, refining column of special type, including 

 separator, cooler, hydrometer jar, necks, etc., complete would be required for third 

 distillation. The alcohol would be treated with sulphuric acid in this distillation. 

 Suitable storage and shipping tanks which may be of steel to be provided for fin- 

 ished goods. 



This latter outfit would produce commercial refined alcohol of 95 per 

 cent to 97 per cent purity. 



Drying Floor. 



The drying floor is a flat, level space surfaced with cement or concrete 

 usually placed over the ovens. The heat of the ovens furnishes the 

 necessary temperature to dry out the acetate of lime. After being dried 

 it is bagged up and shipped directly in freight cars. 



Charcoal House. 



The charcoal house is usually an open-constructed affair slightly 

 elevated above the level of the oven house, so that the cars containing 

 charcoal can be unloaded directly into box cars or into charcoal bins. 

 The trucks containing charcoal must be left either in the open air or 

 standing in the charcoal house at least forty-eight hours before the 

 charcoal can be dumped into the box cars. Most of the charcoal is 

 shipped in the loose state. Sometimes it is separated into as many as 

 five grades, the finer product being bagged and shipped in sacks con- 

 taining 25 or 50 lb. each. In all cases the charcoal house is well removed 



