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:
“Just as children, step by step, must separate from their parents, we will have to separate from them. And we will probably suffer...from some degree of separation anxiety: because separation ends sweet symbiosis. Because separation reduces our power and control. Because separation makes us feel less needed, less important. And because separation exposes our children to danger.”
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