Process for separating solid non-hevea natural rubber from solution containing non-hevea natural rubber

摘要

The present invention separates a solid crumb-shaped natural rubber derived from a non-Hevea plant from a solution in an organic solvent system containing a natural rubber derived from a non-Hevea plant, and simultaneously removes the organic solvent from the rubber The organic solvent system may comprise at least one nonpolar organic solvent or a mixture of at least one nonpolar organic solvent and at least one polar organic solvent, the process comprising dispersing the solution Subjecting to a stripping step with water vapor in the presence of the system, separating the natural rubber crumb obtained by the stripping step from the liquid phase, and subjecting the crumb to drying.