Separation Techniques
Naval stores are recovered from the tall oil byproduct stream of Kraft process pulping of pines in the United States; although tapping of living pines remains common in other parts of the world. Turpentine and pine oil may be recovered by steam distillation of oleoresin or by destructive distillation of pine wood; and solvent extraction of shredded stumps and roots has became more common with the availability of inexpensive naphtha. Rosin remains in the still after turpentine and water have boiled off.
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Famous quotes containing the words separation and/or techniques:
“A separation situation is different for adults than it is for children. When we were very young children, a physical separation was interpreted as a violation of our inalienable rights....As we grew older, the withdrawal of love, whether that meant being misunderstood, mislabeled or slighted, became the separation situation we responded to.”
—Roger Gould (20th century)
“The techniques of opening conversation are universal. I knew long ago and rediscovered that the best way to attract attention, help, and conversation is to be lost. A man who seeing his mother starving to death on a path kicks her in the stomach to clear the way, will cheerfully devote several hours of his time giving wrong directions to a total stranger who claims to be lost.”
—John Steinbeck (1902–1968)