| 摘要 |
FIELD: petrochemistry. SUBSTANCE: method is carried out by two-stepped interaction of sulfur with unsaturated hydrocarbons (e.g. α-limonene, styrene, 5-ethylydene-2-norbornene, dicyclopentadiene), molar ratio of sulfur and said unsaturated hydrocarbon being 25:1-10:1 respectively. The first stage is carried out at 125-140 C, the second one at 160-170 C. Said second stage involves cooling of the product by water or by air, preliminary adding of filler, crushing and packing. Mentioned above interaction of sulfur and unsaturated hydrocarbon takes place in the presence of maleic anhydride (its quantity being 0.05-1.0 moles per 1 mole of unsaturated hydrocarbon) and in the presence of piperylene (its quantity being 0.05-1.0 moles per 1 mole of maleic anhydride). EFFECT: improves efficiency of the method. |
