FIELD: terpentine production. SUBSTANCE: in a method of purifying crude terpentine containing total sulfur above 1%, 1 vol part of crude terpentine is simultaneously treated with 0.1-1.0 vol parts of alkali aqueous solution and 1.0-0.1 vol parts of furfural, whereupon treated terpentine is rectified. Content of sulfur in purified product is 0.001-0.004 wt %. EFFECT: enhanced desulfurization efficiency. 1 tbl, 8 ex
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