In order to find new directions for the use of polymeric material of worn rubber products, the hydrosulfidation of crushed rubber of automobile tire treads was carried out by two methods: polysulfidation followed by desulfidation with alkali and interaction with hydrogen sulfide. According to the first variant the content of mercaptogroups reaches 10%, according to the second variant at atmospheric pressure and room temperature up to 0.6%, at overpressure up to 1 atm 1.5%. It is shown that at treatment with hydrogen sulfide both physical absorption and chemisorption take place. The data on influence of temperature on speed of sorption of gaseous hydrogen sulfide are received.
