Dry Distillation


Dry Distillation -

Is a separation of one or more components from a solid body by the action of heat without the addition of liquid.

In Destructive Distillation, a term which is synonymous with Dry Distillation in the majority of its uses, the substance is placed in ovens or "retorts" of various shapes and compositions, of metal, clay, etc., which are subjected to sufficiently great heat to decompose their contents. The Destructive Distillation of bituminous coal, for example, gives gas for illumination, power, etc.; COAL TAR, a thick liquid substance, now of great commercial value (see article on COAL TAR) and coke, the dry residue, generally utilized as fuel for blast-furnaces.


Arround Dry Distillation in The Grocer's Encyclopedia


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