FIELD: chemical or physical processes.
SUBSTANCE: invention relates to a method of extracting natural non-hevea rubber in form of solid crumbs from a solution containing cyclohexane. Method is characterized by: a) carrying out step of stripping said solution with water vapor in presence of dispersant composition, which includes: 0.5 to 1.0 wt %, relative to total weight of said rubber, sodium salt of copolymer of maleic anhydride and 2,4,4-trimethyl-1-pentene; from 0.05 to 1.0 wt %, relative to the total weight of said rubber, CaCl2, to obtain said solid crumbs of natural rubber of non-hevea type in an aqueous suspension, said hard crumbs of natural rubber of non-hevea type have sizes in range of 0.1 to 10 mm; b) separating said non-hevea type natural rubber crumbs from said aqueous suspension by filtration; c) drying of said crumbs of natural rubber of non-hevea type.
EFFECT: method enables to obtain a product of higher quality.
8 cl, 1 dwg, 5 ex
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