Table

Quantity of Products from Hardwood Distillation : 1919. '

Kind

Quantity

Crude wool alcohol gallons

Acetate of lime pounds

168,956,432

46,354,342 552,124 222,398 945,605

* Includes a small amount of wood alcohol manufactured from softwoods.

* Includes a small amount of wood alcohol manufactured from softwoods.

difficulties have now been overcome and that several'of the retorts are now operating continuously and commercially.

The Whittaker-Pritchard Process

In this process the heating medium is a current of hot gas which circulates from the heater to the distillation chamber to the condenser and then to the heater again. In this way the difficulty of heating finely divided material without stirring is avoided. This process has been used successfully for the destructive distillation of other materials than wood but it has only been suggested as a wood distillation process and even experimental results have not been reported.

Statistics

The latest statistics on hardwood distillation are given in Tables 1, 2 and 3, taken from the Bureau of Census report, "Forest Products: 1919." Table 1 shows that this industry has made a start in the South, although for many years it was confined entirely to the northern hardwood regions. Since 1919 other plants have been put into operation in Tennessee and West Virginia, so that the southern representation is even greater than shown in the table. The New York and Pennsylvania plants are in two groups, one in northwestern Pennsylvania around Bradford with "two plants just across the line in New York, and the other' in northeastern Pennsylvania and contiguous parts of New York. The Michigan plants are in the north peninsula and the northern part of the south peninsula. The Wisconsin plants are in the most northern parts of the state.

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